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    /*
 * Copyright 2010-2014 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 * 
 *  http://aws.amazon.com/apache2.0
 * 
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
package com.amazonaws.services.simpleworkflow;

import java.util.concurrent.Future;

import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.handlers.AsyncHandler;
import com.amazonaws.services.simpleworkflow.model.*;

/**
 * Interface for accessing AmazonSimpleWorkflow asynchronously.
 * Each asynchronous method will return a Java Future object, and users are also allowed
 * to provide a callback handler.
 * Amazon Simple Workflow Service 
    
 * The Amazon Simple Workflow Service API Reference is intended for
 * programmers who need detailed information about the Amazon SWF actions
 * and data types.
 * 
    
 * 
    
 * For an broader overview of the Amazon SWF programming model, please
 * go to the
 *  Amazon SWF Developer Guide 
 * .
 * 
    
 * 
    
 * This section provides an overview of Amazon SWF actions.
 * 
    
 * 
    
 * Action Categories
 * 
    
 * 
    
 * The Amazon SWF actions can be grouped into the following major
 * categories.
 * 
    
 * 
 * 
      
 * 
    •  
      
 * Actions related to Activities
 * 
      
 * 
      • 
 * 
    •  
      
 * Actions related to Deciders
 * 
      
 * 
      • 
 * 
    •  
      
 * Actions related to Workflow Executions
 * 
      
 * 
      • 
 * 
    •  
      
 * Actions related to Administration
 * 
      
 * 
      • 
 * 
    •  
      
 * Actions related to Visibility
 * 
      
 * 
      • 
 * 
 * 
    
 * 
    
 * Actions related to Activities
 * 
    
 * 
    
 * The following are actions that are performed by activity workers:
 * 
    
 * 
 * 
      
 * 
    •  
      
 * PollForActivityTask
 * 
      
 * 
      • 
 * 
    •  
      
 * RespondActivityTaskCompleted
 * 
      
 * 
      • 
 * 
    •  
      
 * RespondActivityTaskFailed
 * 
      
 * 
      • 
 * 
    •  
      
 * RespondActivityTaskCanceled
 * 
      
 * 
      • 
 * 
    •  
      
 * RecordActivityTaskHeartbeat
 * 
      
 * 
      • 
 * 
 * 
    
 * 
    
 * Activity workers use the PollForActivityTask to get new activity
 * tasks. After a worker receives an activity task from Amazon SWF, it
 * performs the task and responds using RespondActivityTaskCompleted if
 * successful or RespondActivityTaskFailed if unsuccessful.
 * 
    
 * 
    
 * Actions related to Deciders
 * 
    
 * 
    
 * The following are actions that are performed by deciders:
 * 
    
 * 
 * 
      
 * 
    •  
      
 * PollForDecisionTask
 * 
      
 * 
      • 
 * 
    •  
      
 * RespondDecisionTaskCompleted
 * 
      
 * 
      • 
 * 
 * 
    
 * 
    
 * Deciders use PollForDecisionTask to get decision tasks. After a
 * decider receives a decision task from Amazon SWF, it examines its
 * workflow execution history and decides what to do next. It calls
 * RespondDecisionTaskCompletedto complete the decision task and provide
 * zero or more next decisions.
 * 
    
 * 
    
 * Actions related to Workflow Executions
 * 
    
 * 
    
 * The following actions operate on a workflow execution:
 * 
    
 * 
 * 
      
 * 
    •  
      
 * RequestCancelWorkflowExecution
 * 
      
 * 
      • 
 * 
    •  
      
 * StartWorkflowExecution
 * 
      
 * 
      • 
 * 
    •  
      
 * SignalWorkflowExecution
 * 
      
 * 
      • 
 * 
    •  
      
 * TerminateWorkflowExecution
 * 
      
 * 
      • 
 * 
 * 
    
 * 
    
 * Actions related to Administration
 * 
    
 * 
    
 * Although you can perform administrative tasks from the Amazon SWF
 * console, you can use the actions in this section to automate functions
 * or build your own administrative tools.
 * 
    
 * 
    
 * Activity Management
 * 
    
 * 
 * 
      
 * 
    •  
      
 * RegisterActivityType
 * 
      
 * 
      • 
 * 
    •  
      
 * DeprecateActivityType
 * 
      
 * 
      • 
 * 
 * 
    
 * 
    
 * Workflow Management
 * 
    
 * 
 * 
      
 * 
    •  
      
 * RegisterWorkflowType
 * 
      
 * 
      • 
 * 
    •  
      
 * DeprecateWorkflowType
 * 
      
 * 
      • 
 * 
 * 
    
 * 
    
 * Domain Management
 * 
    
 * 
 * 
      
 * 
    •  
      
 * RegisterDomain
 * 
      
 * 
      • 
 * 
    •  
      
 * DeprecateDomain
 * 
      
 * 
      • 
 * 
 * 
    
 * 
    
 * Workflow Execution Management
 * 
    
 * 
 * 
      
 * 
    •  
      
 * RequestCancelWorkflowExecution
 * 
      
 * 
      • 
 * 
    •  
      
 * TerminateWorkflowExecution
 * 
      
 * 
      • 
 * 
 * 
    
 * 
    
 * Visibility Actions
 * 
    
 * 
    
 * Although you can perform visibility actions from the Amazon SWF
 * console, you can use the actions in this section to build your own
 * console or administrative tools.
 * 
    
 * 
 * 
      
 * 
 * 
    
 * 
    
 * Activity Visibility
 * 
    
 * 
 * 
      
 * 
    •  
      
 * ListActivityTypes
 * 
      
 * 
      • 
 * 
    •  
      
 * DescribeActivity
 * 
      
 * 
      • 
 * 
 * 
    
 * 
    
 * Workflow Visibility
 * 
    
 * 
 * 
      
 * 
    •  
      
 * ListWorkflowTypes
 * 
      
 * 
      • 
 * 
    •  
      
 * DescribeWorkflowType
 * 
      
 * 
      • 
 * 
 * 
    
 * 
    
 * Workflow Execution Visibility
 * 
    
 * 
 * 
      
 * 
    •  
      
 * DescribeWorkflowExecution
 * 
      
 * 
      • 
 * 
    •  
      
 * ListOpenWorkflowExecutions
 * 
      
 * 
      • 
 * 
    •  
      
 * ListClosedWorkflowExecutions
 * 
      
 * 
      • 
 * 
    •  
      
 * CountOpenWorkflowExecutions
 * 
      
 * 
      • 
 * 
    •  
      
 * CountClosedWorkflowExecutions
 * 
      
 * 
      • 
 * 
    •  
      
 * GetWorkflowExecutionHistory
 * 
      
 * 
      • 
 * 
 * 
    
 * 
    
 * Domain Visibility
 * 
    
 * 
 * 
      
 * 
    •  
      
 * ListDomains
 * 
      
 * 
      • 
 * 
    •  
      
 * DescribeDomain
 * 
      
 * 
      • 
 * 
 * 
    
 * 
    
 * Task List Visibility
 * 
    
 * 
 * 
      
 * 
    •  
      
 * CountPendingActivityTasks
 * 
      
 * 
      • 
 * 
    •  
      
 * CountPendingDecisionTasks
 * 
      
 * 
      • 
 * 
 * 
    
 */
public interface AmazonSimpleWorkflowAsync extends AmazonSimpleWorkflow {
    /**
     * 
    
     * Deprecates the specified workflow type . After a workflow type
     * has been deprecated, you cannot create new executions of that type.
     * Executions that were started before the type was deprecated will
     * continue to run. A deprecated workflow type may still be used when
     * calling visibility actions.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  workflowType.name : String constraint. The key is
     * swf:workflowType.name .
        • 
     * 
      •  workflowType.version : String constraint. The key
     * is swf:workflowType.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param deprecateWorkflowTypeRequest Container for the necessary
     *           parameters to execute the DeprecateWorkflowType operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         DeprecateWorkflowType service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future deprecateWorkflowTypeAsync(DeprecateWorkflowTypeRequest deprecateWorkflowTypeRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Deprecates the specified workflow type . After a workflow type
     * has been deprecated, you cannot create new executions of that type.
     * Executions that were started before the type was deprecated will
     * continue to run. A deprecated workflow type may still be used when
     * calling visibility actions.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  workflowType.name : String constraint. The key is
     * swf:workflowType.name .
        • 
     * 
      •  workflowType.version : String constraint. The key
     * is swf:workflowType.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param deprecateWorkflowTypeRequest Container for the necessary
     *           parameters to execute the DeprecateWorkflowType operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         DeprecateWorkflowType service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future deprecateWorkflowTypeAsync(DeprecateWorkflowTypeRequest deprecateWorkflowTypeRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Deprecates the specified domain. After a domain has been deprecated
     * it cannot be used to create new workflow executions or register new
     * types. However, you can still use visibility actions on this domain.
     * Deprecating a domain also deprecates all activity and workflow types
     * registered in the domain. Executions that were started before the
     * domain was deprecated will continue to run.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param deprecateDomainRequest Container for the necessary parameters
     *           to execute the DeprecateDomain operation on AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         DeprecateDomain service method, as returned by AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future deprecateDomainAsync(DeprecateDomainRequest deprecateDomainRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Deprecates the specified domain. After a domain has been deprecated
     * it cannot be used to create new workflow executions or register new
     * types. However, you can still use visibility actions on this domain.
     * Deprecating a domain also deprecates all activity and workflow types
     * registered in the domain. Executions that were started before the
     * domain was deprecated will continue to run.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param deprecateDomainRequest Container for the necessary parameters
     *           to execute the DeprecateDomain operation on AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         DeprecateDomain service method, as returned by AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future deprecateDomainAsync(DeprecateDomainRequest deprecateDomainRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Registers a new workflow type and its configuration settings
     * in the specified domain.
     * 
    
     * 
    
     * The retention period for the workflow history is set by the
     * RegisterDomain action.
     * 
    
     * 
    
     * IMPORTANT: If the type already exists, then a
     * TypeAlreadyExists fault is returned. You cannot change the
     * configuration settings of a workflow type once it is registered and it
     * must be registered as a new version.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  defaultTaskList : String constraint. The key is
     * swf:defaultTaskList.name .
        • 
     * 
      •  name : String constraint. The key is
     * swf:name .
        • 
     * 
      •  version : String constraint. The key is
     * swf:version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param registerWorkflowTypeRequest Container for the necessary
     *           parameters to execute the RegisterWorkflowType operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         RegisterWorkflowType service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future registerWorkflowTypeAsync(RegisterWorkflowTypeRequest registerWorkflowTypeRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Registers a new workflow type and its configuration settings
     * in the specified domain.
     * 
    
     * 
    
     * The retention period for the workflow history is set by the
     * RegisterDomain action.
     * 
    
     * 
    
     * IMPORTANT: If the type already exists, then a
     * TypeAlreadyExists fault is returned. You cannot change the
     * configuration settings of a workflow type once it is registered and it
     * must be registered as a new version.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  defaultTaskList : String constraint. The key is
     * swf:defaultTaskList.name .
        • 
     * 
      •  name : String constraint. The key is
     * swf:name .
        • 
     * 
      •  version : String constraint. The key is
     * swf:version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param registerWorkflowTypeRequest Container for the necessary
     *           parameters to execute the RegisterWorkflowType operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         RegisterWorkflowType service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future registerWorkflowTypeAsync(RegisterWorkflowTypeRequest registerWorkflowTypeRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns information about workflow types in the specified domain. The
     * results may be split into multiple pages that can be retrieved by
     * making the call repeatedly.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param listWorkflowTypesRequest Container for the necessary parameters
     *           to execute the ListWorkflowTypes operation on AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         ListWorkflowTypes service method, as returned by AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future listWorkflowTypesAsync(ListWorkflowTypesRequest listWorkflowTypesRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns information about workflow types in the specified domain. The
     * results may be split into multiple pages that can be retrieved by
     * making the call repeatedly.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param listWorkflowTypesRequest Container for the necessary parameters
     *           to execute the ListWorkflowTypes operation on AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         ListWorkflowTypes service method, as returned by AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future listWorkflowTypesAsync(ListWorkflowTypesRequest listWorkflowTypesRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Starts an execution of the workflow type in the specified domain
     * using the provided workflowId and input data.
     * 
    
     * 
    
     * This action returns the newly started workflow execution.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  tagList.member.0 : The key is
     * swf:tagList.member.0 .
        • 
     * 
      •  tagList.member.1 : The key is
     * swf:tagList.member.1 .
        • 
     * 
      •  tagList.member.2 : The key is
     * swf:tagList.member.2 .
        • 
     * 
      •  tagList.member.3 : The key is
     * swf:tagList.member.3 .
        • 
     * 
      •  tagList.member.4 : The key is
     * swf:tagList.member.4 .
        • 
     * 
      •  taskList : String constraint. The key is
     * swf:taskList.name .
        • 
     * 
      •  name : String constraint. The key is
     * swf:workflowType.name .
        • 
     * 
      •  version : String constraint. The key is
     * swf:workflowType.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param startWorkflowExecutionRequest Container for the necessary
     *           parameters to execute the StartWorkflowExecution operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         StartWorkflowExecution service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future startWorkflowExecutionAsync(StartWorkflowExecutionRequest startWorkflowExecutionRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Starts an execution of the workflow type in the specified domain
     * using the provided workflowId and input data.
     * 
    
     * 
    
     * This action returns the newly started workflow execution.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  tagList.member.0 : The key is
     * swf:tagList.member.0 .
        • 
     * 
      •  tagList.member.1 : The key is
     * swf:tagList.member.1 .
        • 
     * 
      •  tagList.member.2 : The key is
     * swf:tagList.member.2 .
        • 
     * 
      •  tagList.member.3 : The key is
     * swf:tagList.member.3 .
        • 
     * 
      •  tagList.member.4 : The key is
     * swf:tagList.member.4 .
        • 
     * 
      •  taskList : String constraint. The key is
     * swf:taskList.name .
        • 
     * 
      •  name : String constraint. The key is
     * swf:workflowType.name .
        • 
     * 
      •  version : String constraint. The key is
     * swf:workflowType.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param startWorkflowExecutionRequest Container for the necessary
     *           parameters to execute the StartWorkflowExecution operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         StartWorkflowExecution service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future startWorkflowExecutionAsync(StartWorkflowExecutionRequest startWorkflowExecutionRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Records a WorkflowExecutionSignaled event in the
     * workflow execution history and creates a decision task for the
     * workflow execution identified by the given domain, workflowId and
     * runId. The event is recorded with the specified user defined
     * signalName and input (if provided).
     * 
    
     * 
    
     * NOTE: If a runId is not specified, then the
     * WorkflowExecutionSignaled event is recorded in the history of the
     * current open workflow with the matching workflowId in the domain.
     * 
    
     * 
    
     * NOTE: If the specified workflow execution is not open, this
     * method fails with UnknownResource.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param signalWorkflowExecutionRequest Container for the necessary
     *           parameters to execute the SignalWorkflowExecution operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         SignalWorkflowExecution service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future signalWorkflowExecutionAsync(SignalWorkflowExecutionRequest signalWorkflowExecutionRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Records a WorkflowExecutionSignaled event in the
     * workflow execution history and creates a decision task for the
     * workflow execution identified by the given domain, workflowId and
     * runId. The event is recorded with the specified user defined
     * signalName and input (if provided).
     * 
    
     * 
    
     * NOTE: If a runId is not specified, then the
     * WorkflowExecutionSignaled event is recorded in the history of the
     * current open workflow with the matching workflowId in the domain.
     * 
    
     * 
    
     * NOTE: If the specified workflow execution is not open, this
     * method fails with UnknownResource.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param signalWorkflowExecutionRequest Container for the necessary
     *           parameters to execute the SignalWorkflowExecution operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         SignalWorkflowExecution service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future signalWorkflowExecutionAsync(SignalWorkflowExecutionRequest signalWorkflowExecutionRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns the list of domains registered in the account. The results
     * may be split into multiple pages. To retrieve subsequent pages, make
     * the call again using the nextPageToken returned by the initial call.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains. The element must be set to
     * arn:aws:swf::AccountID:domain/*" , where ???AccountID" is
     * the account ID, with no dashes.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param listDomainsRequest Container for the necessary parameters to
     *           execute the ListDomains operation on AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         ListDomains service method, as returned by AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future listDomainsAsync(ListDomainsRequest listDomainsRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns the list of domains registered in the account. The results
     * may be split into multiple pages. To retrieve subsequent pages, make
     * the call again using the nextPageToken returned by the initial call.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains. The element must be set to
     * arn:aws:swf::AccountID:domain/*" , where ???AccountID" is
     * the account ID, with no dashes.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param listDomainsRequest Container for the necessary parameters to
     *           execute the ListDomains operation on AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         ListDomains service method, as returned by AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future listDomainsAsync(ListDomainsRequest listDomainsRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Records a WorkflowExecutionCancelRequested event in the
     * currently running workflow execution identified by the given domain,
     * workflowId, and runId. This logically requests the cancellation of the
     * workflow execution as a whole. It is up to the decider to take
     * appropriate actions when it receives an execution history with this
     * event.
     * 
    
     * 
    
     * NOTE: If the runId is not specified, the
     * WorkflowExecutionCancelRequested event is recorded in the history of
     * the current open workflow execution with the specified workflowId in
     * the domain.
     * 
    
     * 
    
     * NOTE: Because this action allows the workflow to properly
     * clean up and gracefully close, it should be used instead of
     * TerminateWorkflowExecution when possible.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param requestCancelWorkflowExecutionRequest Container for the
     *           necessary parameters to execute the RequestCancelWorkflowExecution
     *           operation on AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         RequestCancelWorkflowExecution service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future requestCancelWorkflowExecutionAsync(RequestCancelWorkflowExecutionRequest requestCancelWorkflowExecutionRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Records a WorkflowExecutionCancelRequested event in the
     * currently running workflow execution identified by the given domain,
     * workflowId, and runId. This logically requests the cancellation of the
     * workflow execution as a whole. It is up to the decider to take
     * appropriate actions when it receives an execution history with this
     * event.
     * 
    
     * 
    
     * NOTE: If the runId is not specified, the
     * WorkflowExecutionCancelRequested event is recorded in the history of
     * the current open workflow execution with the specified workflowId in
     * the domain.
     * 
    
     * 
    
     * NOTE: Because this action allows the workflow to properly
     * clean up and gracefully close, it should be used instead of
     * TerminateWorkflowExecution when possible.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param requestCancelWorkflowExecutionRequest Container for the
     *           necessary parameters to execute the RequestCancelWorkflowExecution
     *           operation on AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         RequestCancelWorkflowExecution service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future requestCancelWorkflowExecutionAsync(RequestCancelWorkflowExecutionRequest requestCancelWorkflowExecutionRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns information about the specified workflow type . This
     * includes configuration settings specified when the type was registered
     * and other information such as creation date, current status, etc.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  workflowType.name : String constraint. The key is
     * swf:workflowType.name .
        • 
     * 
      •  workflowType.version : String constraint. The key
     * is swf:workflowType.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param describeWorkflowTypeRequest Container for the necessary
     *           parameters to execute the DescribeWorkflowType operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         DescribeWorkflowType service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future describeWorkflowTypeAsync(DescribeWorkflowTypeRequest describeWorkflowTypeRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns information about the specified workflow type . This
     * includes configuration settings specified when the type was registered
     * and other information such as creation date, current status, etc.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  workflowType.name : String constraint. The key is
     * swf:workflowType.name .
        • 
     * 
      •  workflowType.version : String constraint. The key
     * is swf:workflowType.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param describeWorkflowTypeRequest Container for the necessary
     *           parameters to execute the DescribeWorkflowType operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         DescribeWorkflowType service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future describeWorkflowTypeAsync(DescribeWorkflowTypeRequest describeWorkflowTypeRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Deprecates the specified activity type . After an activity
     * type has been deprecated, you cannot create new tasks of that activity
     * type. Tasks of this type that were scheduled before the type was
     * deprecated will continue to run.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  activityType.name : String constraint. The key is
     * swf:activityType.name .
        • 
     * 
      •  activityType.version : String constraint. The key
     * is swf:activityType.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param deprecateActivityTypeRequest Container for the necessary
     *           parameters to execute the DeprecateActivityType operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         DeprecateActivityType service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future deprecateActivityTypeAsync(DeprecateActivityTypeRequest deprecateActivityTypeRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Deprecates the specified activity type . After an activity
     * type has been deprecated, you cannot create new tasks of that activity
     * type. Tasks of this type that were scheduled before the type was
     * deprecated will continue to run.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  activityType.name : String constraint. The key is
     * swf:activityType.name .
        • 
     * 
      •  activityType.version : String constraint. The key
     * is swf:activityType.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param deprecateActivityTypeRequest Container for the necessary
     *           parameters to execute the DeprecateActivityType operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         DeprecateActivityType service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future deprecateActivityTypeAsync(DeprecateActivityTypeRequest deprecateActivityTypeRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns the number of closed workflow executions within the given
     * domain that meet the specified filtering criteria.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  tag : String constraint. The key is
     * swf:tagFilter.tag .
        • 
     * 
      •  typeFilter.name : String constraint. String
     * constraint. The key is swf:typeFilter.name .
        • 
     * 
      •  typeFilter.version : String constraint. String
     * constraint. The key is swf:typeFilter.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param countClosedWorkflowExecutionsRequest Container for the
     *           necessary parameters to execute the CountClosedWorkflowExecutions
     *           operation on AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         CountClosedWorkflowExecutions service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future countClosedWorkflowExecutionsAsync(CountClosedWorkflowExecutionsRequest countClosedWorkflowExecutionsRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns the number of closed workflow executions within the given
     * domain that meet the specified filtering criteria.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  tag : String constraint. The key is
     * swf:tagFilter.tag .
        • 
     * 
      •  typeFilter.name : String constraint. String
     * constraint. The key is swf:typeFilter.name .
        • 
     * 
      •  typeFilter.version : String constraint. String
     * constraint. The key is swf:typeFilter.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param countClosedWorkflowExecutionsRequest Container for the
     *           necessary parameters to execute the CountClosedWorkflowExecutions
     *           operation on AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         CountClosedWorkflowExecutions service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future countClosedWorkflowExecutionsAsync(CountClosedWorkflowExecutionsRequest countClosedWorkflowExecutionsRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns the estimated number of activity tasks in the specified task
     * list. The count returned is an approximation and is not guaranteed to
     * be exact. If you specify a task list that no activity task was ever
     * scheduled in then 0 will be returned.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Use a Condition element with the
     * swf:taskList.name key to allow the action to access only
     * certain task lists.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param countPendingActivityTasksRequest Container for the necessary
     *           parameters to execute the CountPendingActivityTasks operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         CountPendingActivityTasks service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future countPendingActivityTasksAsync(CountPendingActivityTasksRequest countPendingActivityTasksRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns the estimated number of activity tasks in the specified task
     * list. The count returned is an approximation and is not guaranteed to
     * be exact. If you specify a task list that no activity task was ever
     * scheduled in then 0 will be returned.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Use a Condition element with the
     * swf:taskList.name key to allow the action to access only
     * certain task lists.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param countPendingActivityTasksRequest Container for the necessary
     *           parameters to execute the CountPendingActivityTasks operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         CountPendingActivityTasks service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future countPendingActivityTasksAsync(CountPendingActivityTasksRequest countPendingActivityTasksRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by workers to tell the service that the ActivityTask identified
     * by the taskToken was successfully canceled. Additional
     * details can be optionally provided using the
     * details argument.
     * 
    
     * 
    
     * These details (if provided) appear in the
     * ActivityTaskCanceled event added to the workflow history.
     * 
    
     * 
    
     * IMPORTANT: Only use this operation if the canceled flag of a
     * RecordActivityTaskHeartbeat request returns true and if the activity
     * can be safely undone or abandoned.
     * 
    
     * 
    
     * A task is considered open from the time that it is scheduled until it
     * is closed. Therefore a task is reported as open while a worker is
     * processing it. A task is closed after it has been specified in a call
     * to RespondActivityTaskCompleted, RespondActivityTaskCanceled,
     * RespondActivityTaskFailed, or the task has
     *  timed out 
     * .
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param respondActivityTaskCanceledRequest Container for the necessary
     *           parameters to execute the RespondActivityTaskCanceled operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         RespondActivityTaskCanceled service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future respondActivityTaskCanceledAsync(RespondActivityTaskCanceledRequest respondActivityTaskCanceledRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by workers to tell the service that the ActivityTask identified
     * by the taskToken was successfully canceled. Additional
     * details can be optionally provided using the
     * details argument.
     * 
    
     * 
    
     * These details (if provided) appear in the
     * ActivityTaskCanceled event added to the workflow history.
     * 
    
     * 
    
     * IMPORTANT: Only use this operation if the canceled flag of a
     * RecordActivityTaskHeartbeat request returns true and if the activity
     * can be safely undone or abandoned.
     * 
    
     * 
    
     * A task is considered open from the time that it is scheduled until it
     * is closed. Therefore a task is reported as open while a worker is
     * processing it. A task is closed after it has been specified in a call
     * to RespondActivityTaskCompleted, RespondActivityTaskCanceled,
     * RespondActivityTaskFailed, or the task has
     *  timed out 
     * .
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param respondActivityTaskCanceledRequest Container for the necessary
     *           parameters to execute the RespondActivityTaskCanceled operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         RespondActivityTaskCanceled service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future respondActivityTaskCanceledAsync(RespondActivityTaskCanceledRequest respondActivityTaskCanceledRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by deciders to tell the service that the DecisionTask identified
     * by the taskToken has successfully completed. The
     * decisions argument specifies the list of decisions made
     * while processing the task.
     * 
    
     * 
    
     * A
     * DecisionTaskCompleted event is added
     * to the workflow history. The executionContext specified
     * is attached to the event in the workflow execution history.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * If an IAM policy grants permission to use
     * RespondDecisionTaskCompleted , it can express permissions
     * for the list of decisions in the decisions parameter in
     * the same way as for the regular API. This approach maintains a uniform
     * conceptual model and helps keep policies readable. For more
     * information, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param respondDecisionTaskCompletedRequest Container for the necessary
     *           parameters to execute the RespondDecisionTaskCompleted operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         RespondDecisionTaskCompleted service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future respondDecisionTaskCompletedAsync(RespondDecisionTaskCompletedRequest respondDecisionTaskCompletedRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by deciders to tell the service that the DecisionTask identified
     * by the taskToken has successfully completed. The
     * decisions argument specifies the list of decisions made
     * while processing the task.
     * 
    
     * 
    
     * A
     * DecisionTaskCompleted event is added
     * to the workflow history. The executionContext specified
     * is attached to the event in the workflow execution history.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * If an IAM policy grants permission to use
     * RespondDecisionTaskCompleted , it can express permissions
     * for the list of decisions in the decisions parameter in
     * the same way as for the regular API. This approach maintains a uniform
     * conceptual model and helps keep policies readable. For more
     * information, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param respondDecisionTaskCompletedRequest Container for the necessary
     *           parameters to execute the RespondDecisionTaskCompleted operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         RespondDecisionTaskCompleted service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future respondDecisionTaskCompletedAsync(RespondDecisionTaskCompletedRequest respondDecisionTaskCompletedRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by workers to tell the service that the ActivityTask identified
     * by the taskToken completed successfully with a
     * result (if provided). The result appears in
     * the ActivityTaskCompleted event in the workflow history.
     * 
    
     * 
    
     * IMPORTANT: If the requested task does not complete
     * successfully, use RespondActivityTaskFailed instead. If the worker
     * finds that the task is canceled through the canceled flag returned by
     * RecordActivityTaskHeartbeat, it should cancel the task, clean up and
     * then call RespondActivityTaskCanceled.
     * 
    
     * 
    
     * A task is considered open from the time that it is scheduled until it
     * is closed. Therefore a task is reported as open while a worker is
     * processing it. A task is closed after it has been specified in a call
     * to RespondActivityTaskCompleted, RespondActivityTaskCanceled,
     * RespondActivityTaskFailed, or the task has
     *  timed out 
     * .
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param respondActivityTaskCompletedRequest Container for the necessary
     *           parameters to execute the RespondActivityTaskCompleted operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         RespondActivityTaskCompleted service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future respondActivityTaskCompletedAsync(RespondActivityTaskCompletedRequest respondActivityTaskCompletedRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by workers to tell the service that the ActivityTask identified
     * by the taskToken completed successfully with a
     * result (if provided). The result appears in
     * the ActivityTaskCompleted event in the workflow history.
     * 
    
     * 
    
     * IMPORTANT: If the requested task does not complete
     * successfully, use RespondActivityTaskFailed instead. If the worker
     * finds that the task is canceled through the canceled flag returned by
     * RecordActivityTaskHeartbeat, it should cancel the task, clean up and
     * then call RespondActivityTaskCanceled.
     * 
    
     * 
    
     * A task is considered open from the time that it is scheduled until it
     * is closed. Therefore a task is reported as open while a worker is
     * processing it. A task is closed after it has been specified in a call
     * to RespondActivityTaskCompleted, RespondActivityTaskCanceled,
     * RespondActivityTaskFailed, or the task has
     *  timed out 
     * .
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param respondActivityTaskCompletedRequest Container for the necessary
     *           parameters to execute the RespondActivityTaskCompleted operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         RespondActivityTaskCompleted service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future respondActivityTaskCompletedAsync(RespondActivityTaskCompletedRequest respondActivityTaskCompletedRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by workers to get an ActivityTask from the specified activity
     * taskList . This initiates a long poll, where the service
     * holds the HTTP connection open and responds as soon as a task becomes
     * available. The maximum time the service holds on to the request before
     * responding is 60 seconds. If no task is available within 60 seconds,
     * the poll will return an empty result. An empty result, in this
     * context, means that an ActivityTask is returned, but that the value of
     * taskToken is an empty string. If a task is returned, the worker should
     * use its type to identify and process it correctly.
     * 
    
     * 
    
     * IMPORTANT: Workers should set their client side socket timeout
     * to at least 70 seconds (10 seconds higher than the maximum time
     * service may hold the poll request).
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Use a Condition element with the
     * swf:taskList.name key to allow the action to access only
     * certain task lists.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param pollForActivityTaskRequest Container for the necessary
     *           parameters to execute the PollForActivityTask operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         PollForActivityTask service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future pollForActivityTaskAsync(PollForActivityTaskRequest pollForActivityTaskRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by workers to get an ActivityTask from the specified activity
     * taskList . This initiates a long poll, where the service
     * holds the HTTP connection open and responds as soon as a task becomes
     * available. The maximum time the service holds on to the request before
     * responding is 60 seconds. If no task is available within 60 seconds,
     * the poll will return an empty result. An empty result, in this
     * context, means that an ActivityTask is returned, but that the value of
     * taskToken is an empty string. If a task is returned, the worker should
     * use its type to identify and process it correctly.
     * 
    
     * 
    
     * IMPORTANT: Workers should set their client side socket timeout
     * to at least 70 seconds (10 seconds higher than the maximum time
     * service may hold the poll request).
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Use a Condition element with the
     * swf:taskList.name key to allow the action to access only
     * certain task lists.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param pollForActivityTaskRequest Container for the necessary
     *           parameters to execute the PollForActivityTask operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         PollForActivityTask service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future pollForActivityTaskAsync(PollForActivityTaskRequest pollForActivityTaskRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns the number of open workflow executions within the given
     * domain that meet the specified filtering criteria.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  tag : String constraint. The key is
     * swf:tagFilter.tag .
        • 
     * 
      •  typeFilter.name : String constraint. String
     * constraint. The key is swf:typeFilter.name .
        • 
     * 
      •  typeFilter.version : String constraint. String
     * constraint. The key is swf:typeFilter.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param countOpenWorkflowExecutionsRequest Container for the necessary
     *           parameters to execute the CountOpenWorkflowExecutions operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         CountOpenWorkflowExecutions service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future countOpenWorkflowExecutionsAsync(CountOpenWorkflowExecutionsRequest countOpenWorkflowExecutionsRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns the number of open workflow executions within the given
     * domain that meet the specified filtering criteria.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  tag : String constraint. The key is
     * swf:tagFilter.tag .
        • 
     * 
      •  typeFilter.name : String constraint. String
     * constraint. The key is swf:typeFilter.name .
        • 
     * 
      •  typeFilter.version : String constraint. String
     * constraint. The key is swf:typeFilter.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param countOpenWorkflowExecutionsRequest Container for the necessary
     *           parameters to execute the CountOpenWorkflowExecutions operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         CountOpenWorkflowExecutions service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future countOpenWorkflowExecutionsAsync(CountOpenWorkflowExecutionsRequest countOpenWorkflowExecutionsRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns information about the specified activity type. This includes
     * configuration settings provided at registration time as well as other
     * general information about the type.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  activityType.name : String constraint. The key is
     * swf:activityType.name .
        • 
     * 
      •  activityType.version : String constraint. The key
     * is swf:activityType.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param describeActivityTypeRequest Container for the necessary
     *           parameters to execute the DescribeActivityType operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         DescribeActivityType service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future describeActivityTypeAsync(DescribeActivityTypeRequest describeActivityTypeRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns information about the specified activity type. This includes
     * configuration settings provided at registration time as well as other
     * general information about the type.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  activityType.name : String constraint. The key is
     * swf:activityType.name .
        • 
     * 
      •  activityType.version : String constraint. The key
     * is swf:activityType.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param describeActivityTypeRequest Container for the necessary
     *           parameters to execute the DescribeActivityType operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         DescribeActivityType service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future describeActivityTypeAsync(DescribeActivityTypeRequest describeActivityTypeRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns a list of open workflow executions in the specified domain
     * that meet the filtering criteria. The results may be split into
     * multiple pages. To retrieve subsequent pages, make the call again
     * using the nextPageToken returned by the initial call.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  tag : String constraint. The key is
     * swf:tagFilter.tag .
        • 
     * 
      •  typeFilter.name : String constraint. String
     * constraint. The key is swf:typeFilter.name .
        • 
     * 
      •  typeFilter.version : String constraint. String
     * constraint. The key is swf:typeFilter.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param listOpenWorkflowExecutionsRequest Container for the necessary
     *           parameters to execute the ListOpenWorkflowExecutions operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         ListOpenWorkflowExecutions service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future listOpenWorkflowExecutionsAsync(ListOpenWorkflowExecutionsRequest listOpenWorkflowExecutionsRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns a list of open workflow executions in the specified domain
     * that meet the filtering criteria. The results may be split into
     * multiple pages. To retrieve subsequent pages, make the call again
     * using the nextPageToken returned by the initial call.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  tag : String constraint. The key is
     * swf:tagFilter.tag .
        • 
     * 
      •  typeFilter.name : String constraint. String
     * constraint. The key is swf:typeFilter.name .
        • 
     * 
      •  typeFilter.version : String constraint. String
     * constraint. The key is swf:typeFilter.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param listOpenWorkflowExecutionsRequest Container for the necessary
     *           parameters to execute the ListOpenWorkflowExecutions operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         ListOpenWorkflowExecutions service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future listOpenWorkflowExecutionsAsync(ListOpenWorkflowExecutionsRequest listOpenWorkflowExecutionsRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns the history of the specified workflow execution. The results
     * may be split into multiple pages. To retrieve subsequent pages, make
     * the call again using the nextPageToken returned by the
     * initial call.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param getWorkflowExecutionHistoryRequest Container for the necessary
     *           parameters to execute the GetWorkflowExecutionHistory operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         GetWorkflowExecutionHistory service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future getWorkflowExecutionHistoryAsync(GetWorkflowExecutionHistoryRequest getWorkflowExecutionHistoryRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns the history of the specified workflow execution. The results
     * may be split into multiple pages. To retrieve subsequent pages, make
     * the call again using the nextPageToken returned by the
     * initial call.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param getWorkflowExecutionHistoryRequest Container for the necessary
     *           parameters to execute the GetWorkflowExecutionHistory operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         GetWorkflowExecutionHistory service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future getWorkflowExecutionHistoryAsync(GetWorkflowExecutionHistoryRequest getWorkflowExecutionHistoryRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Registers a new domain.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • You cannot use an IAM policy to control domain access for this
     * action. The name of the domain being registered is available as the
     * resource of this action.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     * 
    
     * 
     * 
    
     *
     * @param registerDomainRequest Container for the necessary parameters to
     *           execute the RegisterDomain operation on AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         RegisterDomain service method, as returned by AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future registerDomainAsync(RegisterDomainRequest registerDomainRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Registers a new domain.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • You cannot use an IAM policy to control domain access for this
     * action. The name of the domain being registered is available as the
     * resource of this action.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     * 
    
     * 
     * 
    
     *
     * @param registerDomainRequest Container for the necessary parameters to
     *           execute the RegisterDomain operation on AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         RegisterDomain service method, as returned by AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future registerDomainAsync(RegisterDomainRequest registerDomainRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Registers a new activity type along with its configuration
     * settings in the specified domain.
     * 
    
     * 
    
     * IMPORTANT: A TypeAlreadyExists fault is returned if the type
     * already exists in the domain. You cannot change any configuration
     * settings of the type after its registration, and it must be registered
     * as a new version.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  defaultTaskList : String constraint. The key is
     * swf:defaultTaskList.name .
        • 
     * 
      •  name : String constraint. The key is
     * swf:name .
        • 
     * 
      •  version : String constraint. The key is
     * swf:version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param registerActivityTypeRequest Container for the necessary
     *           parameters to execute the RegisterActivityType operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         RegisterActivityType service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future registerActivityTypeAsync(RegisterActivityTypeRequest registerActivityTypeRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Registers a new activity type along with its configuration
     * settings in the specified domain.
     * 
    
     * 
    
     * IMPORTANT: A TypeAlreadyExists fault is returned if the type
     * already exists in the domain. You cannot change any configuration
     * settings of the type after its registration, and it must be registered
     * as a new version.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  defaultTaskList : String constraint. The key is
     * swf:defaultTaskList.name .
        • 
     * 
      •  name : String constraint. The key is
     * swf:name .
        • 
     * 
      •  version : String constraint. The key is
     * swf:version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param registerActivityTypeRequest Container for the necessary
     *           parameters to execute the RegisterActivityType operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         RegisterActivityType service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future registerActivityTypeAsync(RegisterActivityTypeRequest registerActivityTypeRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns a list of closed workflow executions in the specified domain
     * that meet the filtering criteria. The results may be split into
     * multiple pages. To retrieve subsequent pages, make the call again
     * using the nextPageToken returned by the initial call.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  tag : String constraint. The key is
     * swf:tagFilter.tag .
        • 
     * 
      •  typeFilter.name : String constraint. String
     * constraint. The key is swf:typeFilter.name .
        • 
     * 
      •  typeFilter.version : String constraint. String
     * constraint. The key is swf:typeFilter.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param listClosedWorkflowExecutionsRequest Container for the necessary
     *           parameters to execute the ListClosedWorkflowExecutions operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         ListClosedWorkflowExecutions service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future listClosedWorkflowExecutionsAsync(ListClosedWorkflowExecutionsRequest listClosedWorkflowExecutionsRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns a list of closed workflow executions in the specified domain
     * that meet the filtering criteria. The results may be split into
     * multiple pages. To retrieve subsequent pages, make the call again
     * using the nextPageToken returned by the initial call.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Constrain the following parameters by using a
     * Condition element with the appropriate keys.
     * 
        
     * 
      •  tag : String constraint. The key is
     * swf:tagFilter.tag .
        • 
     * 
      •  typeFilter.name : String constraint. String
     * constraint. The key is swf:typeFilter.name .
        • 
     * 
      •  typeFilter.version : String constraint. String
     * constraint. The key is swf:typeFilter.version .
        • 
     * 
     * 
      
     * 
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param listClosedWorkflowExecutionsRequest Container for the necessary
     *           parameters to execute the ListClosedWorkflowExecutions operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         ListClosedWorkflowExecutions service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future listClosedWorkflowExecutionsAsync(ListClosedWorkflowExecutionsRequest listClosedWorkflowExecutionsRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by activity workers to report to the service that the
     * ActivityTask represented by the specified taskToken is
     * still making progress. The worker can also (optionally) specify
     * details of the progress, for example percent complete, using the
     * details parameter. This action can also be used by the
     * worker as a mechanism to check if cancellation is being requested for
     * the activity task. If a cancellation is being attempted for the
     * specified task, then the boolean cancelRequested flag
     * returned by the service is set to true .
     * 
    
     * 
    
     * This action resets the taskHeartbeatTimeout clock. The
     * taskHeartbeatTimeout is specified in
     * RegisterActivityType.
     * 
    
     * 
    
     * This action does not in itself create an event in the workflow
     * execution history. However, if the task times out, the workflow
     * execution history will contain a ActivityTaskTimedOut
     * event that contains the information from the last heartbeat generated
     * by the activity worker.
     * 
    
     * 
    
     * NOTE: The taskStartToCloseTimeout of an activity type is the
     * maximum duration of an activity task, regardless of the number of
     * RecordActivityTaskHeartbeat requests received. The
     * taskStartToCloseTimeout is also specified in RegisterActivityType.
     * 
    
     * 
    
     * NOTE: This operation is only useful for long-lived activities
     * to report liveliness of the task and to determine if a cancellation is
     * being attempted.
     * 
    
     * 
    
     * IMPORTANT: If the cancelRequested flag returns true, a
     * cancellation is being attempted. If the worker can cancel the
     * activity, it should respond with RespondActivityTaskCanceled.
     * Otherwise, it should ignore the cancellation request.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param recordActivityTaskHeartbeatRequest Container for the necessary
     *           parameters to execute the RecordActivityTaskHeartbeat operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         RecordActivityTaskHeartbeat service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future recordActivityTaskHeartbeatAsync(RecordActivityTaskHeartbeatRequest recordActivityTaskHeartbeatRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by activity workers to report to the service that the
     * ActivityTask represented by the specified taskToken is
     * still making progress. The worker can also (optionally) specify
     * details of the progress, for example percent complete, using the
     * details parameter. This action can also be used by the
     * worker as a mechanism to check if cancellation is being requested for
     * the activity task. If a cancellation is being attempted for the
     * specified task, then the boolean cancelRequested flag
     * returned by the service is set to true .
     * 
    
     * 
    
     * This action resets the taskHeartbeatTimeout clock. The
     * taskHeartbeatTimeout is specified in
     * RegisterActivityType.
     * 
    
     * 
    
     * This action does not in itself create an event in the workflow
     * execution history. However, if the task times out, the workflow
     * execution history will contain a ActivityTaskTimedOut
     * event that contains the information from the last heartbeat generated
     * by the activity worker.
     * 
    
     * 
    
     * NOTE: The taskStartToCloseTimeout of an activity type is the
     * maximum duration of an activity task, regardless of the number of
     * RecordActivityTaskHeartbeat requests received. The
     * taskStartToCloseTimeout is also specified in RegisterActivityType.
     * 
    
     * 
    
     * NOTE: This operation is only useful for long-lived activities
     * to report liveliness of the task and to determine if a cancellation is
     * being attempted.
     * 
    
     * 
    
     * IMPORTANT: If the cancelRequested flag returns true, a
     * cancellation is being attempted. If the worker can cancel the
     * activity, it should respond with RespondActivityTaskCanceled.
     * Otherwise, it should ignore the cancellation request.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param recordActivityTaskHeartbeatRequest Container for the necessary
     *           parameters to execute the RecordActivityTaskHeartbeat operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         RecordActivityTaskHeartbeat service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future recordActivityTaskHeartbeatAsync(RecordActivityTaskHeartbeatRequest recordActivityTaskHeartbeatRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by deciders to get a DecisionTask from the specified decision
     * taskList . A decision task may be returned for any open
     * workflow execution that is using the specified task list. The task
     * includes a paginated view of the history of the workflow execution.
     * The decider should use the workflow type and the history to determine
     * how to properly handle the task.
     * 
    
     * 
    
     * This action initiates a long poll, where the service holds the HTTP
     * connection open and responds as soon a task becomes available. If no
     * decision task is available in the specified task list before the
     * timeout of 60 seconds expires, an empty result is returned. An empty
     * result, in this context, means that a DecisionTask is returned, but
     * that the value of taskToken is an empty string.
     * 
    
     * 
    
     * IMPORTANT: Deciders should set their client side socket
     * timeout to at least 70 seconds (10 seconds higher than the timeout).
     * 
    
     * 
    
     * IMPORTANT: Because the number of workflow history events for a
     * single workflow execution might be very large, the result returned
     * might be split up across a number of pages. To retrieve subsequent
     * pages, make additional calls to PollForDecisionTask using the
     * nextPageToken returned by the initial call. Note that you do not call
     * GetWorkflowExecutionHistory with this nextPageToken. Instead, call
     * PollForDecisionTask again.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Use a Condition element with the
     * swf:taskList.name key to allow the action to access only
     * certain task lists.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param pollForDecisionTaskRequest Container for the necessary
     *           parameters to execute the PollForDecisionTask operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         PollForDecisionTask service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future pollForDecisionTaskAsync(PollForDecisionTaskRequest pollForDecisionTaskRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by deciders to get a DecisionTask from the specified decision
     * taskList . A decision task may be returned for any open
     * workflow execution that is using the specified task list. The task
     * includes a paginated view of the history of the workflow execution.
     * The decider should use the workflow type and the history to determine
     * how to properly handle the task.
     * 
    
     * 
    
     * This action initiates a long poll, where the service holds the HTTP
     * connection open and responds as soon a task becomes available. If no
     * decision task is available in the specified task list before the
     * timeout of 60 seconds expires, an empty result is returned. An empty
     * result, in this context, means that a DecisionTask is returned, but
     * that the value of taskToken is an empty string.
     * 
    
     * 
    
     * IMPORTANT: Deciders should set their client side socket
     * timeout to at least 70 seconds (10 seconds higher than the timeout).
     * 
    
     * 
    
     * IMPORTANT: Because the number of workflow history events for a
     * single workflow execution might be very large, the result returned
     * might be split up across a number of pages. To retrieve subsequent
     * pages, make additional calls to PollForDecisionTask using the
     * nextPageToken returned by the initial call. Note that you do not call
     * GetWorkflowExecutionHistory with this nextPageToken. Instead, call
     * PollForDecisionTask again.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Use a Condition element with the
     * swf:taskList.name key to allow the action to access only
     * certain task lists.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param pollForDecisionTaskRequest Container for the necessary
     *           parameters to execute the PollForDecisionTask operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         PollForDecisionTask service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future pollForDecisionTaskAsync(PollForDecisionTaskRequest pollForDecisionTaskRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns information about all activities registered in the specified
     * domain that match the specified name and registration status. The
     * result includes information like creation date, current status of the
     * activity, etc. The results may be split into multiple pages. To
     * retrieve subsequent pages, make the call again using the
     * nextPageToken returned by the initial call.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param listActivityTypesRequest Container for the necessary parameters
     *           to execute the ListActivityTypes operation on AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         ListActivityTypes service method, as returned by AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future listActivityTypesAsync(ListActivityTypesRequest listActivityTypesRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns information about all activities registered in the specified
     * domain that match the specified name and registration status. The
     * result includes information like creation date, current status of the
     * activity, etc. The results may be split into multiple pages. To
     * retrieve subsequent pages, make the call again using the
     * nextPageToken returned by the initial call.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param listActivityTypesRequest Container for the necessary parameters
     *           to execute the ListActivityTypes operation on AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         ListActivityTypes service method, as returned by AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future listActivityTypesAsync(ListActivityTypesRequest listActivityTypesRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns information about the specified domain including description
     * and status.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param describeDomainRequest Container for the necessary parameters to
     *           execute the DescribeDomain operation on AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         DescribeDomain service method, as returned by AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future describeDomainAsync(DescribeDomainRequest describeDomainRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns information about the specified domain including description
     * and status.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param describeDomainRequest Container for the necessary parameters to
     *           execute the DescribeDomain operation on AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         DescribeDomain service method, as returned by AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future describeDomainAsync(DescribeDomainRequest describeDomainRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by workers to tell the service that the ActivityTask identified
     * by the taskToken has failed with reason (if
     * specified). The reason and details appear in
     * the ActivityTaskFailed event added to the workflow
     * history.
     * 
    
     * 
    
     * A task is considered open from the time that it is scheduled until it
     * is closed. Therefore a task is reported as open while a worker is
     * processing it. A task is closed after it has been specified in a call
     * to RespondActivityTaskCompleted, RespondActivityTaskCanceled,
     * RespondActivityTaskFailed, or the task has
     *  timed out 
     * .
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param respondActivityTaskFailedRequest Container for the necessary
     *           parameters to execute the RespondActivityTaskFailed operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         RespondActivityTaskFailed service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future respondActivityTaskFailedAsync(RespondActivityTaskFailedRequest respondActivityTaskFailedRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Used by workers to tell the service that the ActivityTask identified
     * by the taskToken has failed with reason (if
     * specified). The reason and details appear in
     * the ActivityTaskFailed event added to the workflow
     * history.
     * 
    
     * 
    
     * A task is considered open from the time that it is scheduled until it
     * is closed. Therefore a task is reported as open while a worker is
     * processing it. A task is closed after it has been specified in a call
     * to RespondActivityTaskCompleted, RespondActivityTaskCanceled,
     * RespondActivityTaskFailed, or the task has
     *  timed out 
     * .
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param respondActivityTaskFailedRequest Container for the necessary
     *           parameters to execute the RespondActivityTaskFailed operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         RespondActivityTaskFailed service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future respondActivityTaskFailedAsync(RespondActivityTaskFailedRequest respondActivityTaskFailedRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns the estimated number of decision tasks in the specified task
     * list. The count returned is an approximation and is not guaranteed to
     * be exact. If you specify a task list that no decision task was ever
     * scheduled in then 0 will be returned.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Use a Condition element with the
     * swf:taskList.name key to allow the action to access only
     * certain task lists.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param countPendingDecisionTasksRequest Container for the necessary
     *           parameters to execute the CountPendingDecisionTasks operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         CountPendingDecisionTasks service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future countPendingDecisionTasksAsync(CountPendingDecisionTasksRequest countPendingDecisionTasksRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns the estimated number of decision tasks in the specified task
     * list. The count returned is an approximation and is not guaranteed to
     * be exact. If you specify a task list that no decision task was ever
     * scheduled in then 0 will be returned.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • Use a Condition element with the
     * swf:taskList.name key to allow the action to access only
     * certain task lists.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param countPendingDecisionTasksRequest Container for the necessary
     *           parameters to execute the CountPendingDecisionTasks operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         CountPendingDecisionTasks service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future countPendingDecisionTasksAsync(CountPendingDecisionTasksRequest countPendingDecisionTasksRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Records a WorkflowExecutionTerminated event and forces
     * closure of the workflow execution identified by the given domain,
     * runId, and workflowId. The child policy, registered with the workflow
     * type or specified when starting this execution, is applied to any open
     * child workflow executions of this workflow execution.
     * 
    
     * 
    
     * IMPORTANT: If the identified workflow execution was in
     * progress, it is terminated immediately.
     * 
    
     * 
    
     * NOTE: If a runId is not specified, then the
     * WorkflowExecutionTerminated event is recorded in the history of the
     * current open workflow with the matching workflowId in the domain.
     * 
    
     * 
    
     * NOTE: You should consider using RequestCancelWorkflowExecution
     * action instead because it allows the workflow to gracefully close
     * while TerminateWorkflowExecution does not.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param terminateWorkflowExecutionRequest Container for the necessary
     *           parameters to execute the TerminateWorkflowExecution operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         TerminateWorkflowExecution service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future terminateWorkflowExecutionAsync(TerminateWorkflowExecutionRequest terminateWorkflowExecutionRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Records a WorkflowExecutionTerminated event and forces
     * closure of the workflow execution identified by the given domain,
     * runId, and workflowId. The child policy, registered with the workflow
     * type or specified when starting this execution, is applied to any open
     * child workflow executions of this workflow execution.
     * 
    
     * 
    
     * IMPORTANT: If the identified workflow execution was in
     * progress, it is terminated immediately.
     * 
    
     * 
    
     * NOTE: If a runId is not specified, then the
     * WorkflowExecutionTerminated event is recorded in the history of the
     * current open workflow with the matching workflowId in the domain.
     * 
    
     * 
    
     * NOTE: You should consider using RequestCancelWorkflowExecution
     * action instead because it allows the workflow to gracefully close
     * while TerminateWorkflowExecution does not.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param terminateWorkflowExecutionRequest Container for the necessary
     *           parameters to execute the TerminateWorkflowExecution operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         TerminateWorkflowExecution service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future terminateWorkflowExecutionAsync(TerminateWorkflowExecutionRequest terminateWorkflowExecutionRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns information about the specified workflow execution including
     * its type and some statistics.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param describeWorkflowExecutionRequest Container for the necessary
     *           parameters to execute the DescribeWorkflowExecution operation on
     *           AmazonSimpleWorkflow.
     * 
     * @return A Java Future object containing the response from the
     *         DescribeWorkflowExecution service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future describeWorkflowExecutionAsync(DescribeWorkflowExecutionRequest describeWorkflowExecutionRequest) 
            throws AmazonServiceException, AmazonClientException;

    /**
     * 
    
     * Returns information about the specified workflow execution including
     * its type and some statistics.
     * 
    
     * 
    
     * NOTE: This operation is eventually consistent. The results are
     * best effort and may not exactly reflect recent updates and changes.
     * 
    
     * 
    
     * Access Control
     * 
    
     * 
    
     * You can use IAM policies to control this action's access to Amazon
     * SWF resources as follows:
     * 
    
     * 
     * 
      
     * 
    • Use a Resource element with the domain name to limit
     * the action to only specified domains.
      • 
     * 
    • Use an Action element to allow or deny permission to
     * call this action.
      • 
     * 
    • You cannot use an IAM policy to constrain this action's
     * parameters.
      • 
     * 
     * 
    
     * 
    
     * If the caller does not have sufficient permissions to invoke the
     * action, or the parameter values fall outside the specified
     * constraints, the action fails by throwing
     * OperationNotPermitted . For details and example IAM
     * policies, see
     *  Using IAM to Manage Access to Amazon SWF Workflows 
     * .
     * 
    
     *
     * @param describeWorkflowExecutionRequest Container for the necessary
     *           parameters to execute the DescribeWorkflowExecution operation on
     *           AmazonSimpleWorkflow.
     * @param asyncHandler Asynchronous callback handler for events in the
     *           life-cycle of the request. Users could provide the implementation of
     *           the four callback methods in this interface to process the operation
     *           result or handle the exception.
     * 
     * @return A Java Future object containing the response from the
     *         DescribeWorkflowExecution service method, as returned by
     *         AmazonSimpleWorkflow.
     * 
     *
     * @throws AmazonClientException
     *             If any internal errors are encountered inside the client while
     *             attempting to make the request or handle the response.  For example
     *             if a network connection is not available.
     * @throws AmazonServiceException
     *             If an error response is returned by AmazonSimpleWorkflow indicating
     *             either a problem with the data in the request, or a server side issue.
     */
    public Future describeWorkflowExecutionAsync(DescribeWorkflowExecutionRequest describeWorkflowExecutionRequest,
            AsyncHandler asyncHandler)
                    throws AmazonServiceException, AmazonClientException;
}




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