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/*
* JBoss, Home of Professional Open Source
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags.
* See the copyright.txt in the distribution for a full listing
* of individual contributors.
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* (C) 2005-2006,
* @author JBoss Inc.
*/
/*
* Copyright (C) 2002,
*
* Arjuna Technologies Limited,
* Newcastle upon Tyne,
* Tyne and Wear,
* UK.
*
* $Id: UserActivity.java,v 1.2 2005/05/19 12:13:15 nmcl Exp $
*/
package com.arjuna.mw.wsas;
import com.arjuna.mw.wsas.common.GlobalId;
import com.arjuna.mw.wsas.activity.Outcome;
import com.arjuna.mw.wsas.activity.ActivityHierarchy;
import com.arjuna.mw.wsas.completionstatus.CompletionStatus;
import com.arjuna.mw.wsas.exceptions.WrongStateException;
import com.arjuna.mw.wsas.exceptions.SystemException;
import com.arjuna.mw.wsas.exceptions.InvalidActivityException;
import com.arjuna.mw.wsas.exceptions.InvalidTimeoutException;
import com.arjuna.mw.wsas.exceptions.ProtocolViolationException;
import com.arjuna.mw.wsas.exceptions.NoActivityException;
import com.arjuna.mw.wsas.exceptions.NoPermissionException;
import com.arjuna.mw.wsas.exceptions.ActiveChildException;
/**
* The user portion of the activity API. An implementation of this interface
* presents each thread with the capability to create and manage activities.
* It is very similar to the OTS Current and JTA UserTransaction.
*
* @author Mark Little ([email protected])
* @version $Id: UserActivity.java,v 1.2 2005/05/19 12:13:15 nmcl Exp $
* @since 1.0.
*/
public interface UserActivity
{
/**
* Start a new activity with a given coordination type. If there is already
* an activity associated with the thread then it will be nested. An
* implementation specific timeout will be associated with the activity
* (which may be no timeout).
*
* @param serviceType specifies the type of coordinator which will be
* instantiated to manage the activity.
*
* @exception WrongStateException Thrown if the any currently associated
* activity is in a state that does not allow a new activity to be
* enlisted.
* @exception SystemException Thrown in any other situation.
*/
public void start (String serviceType) throws WrongStateException, SystemException;
/**
* Start a new activity with a given coordination type. If there is already an activity associated
* with the thread then it will be nested. If the activity is still
* active when the specified timeout elapses, it will be terminated.
*
* @param serviceType specifies the type of coordinator which will be
* instantiated to manage the activity.
* @param timeout The timeout associated with the activity (in
* seconds). If the activity has not been terminated by the time this
* period elapses, then it will automatically be terminated.
*
* @exception WrongStateException Thrown if the currently associated
* activity is in a state that does not allow a new activity to be
* enlisted as a child.
* @exception InvalidTimeoutException Thrown if the specified timeout is
* invalid within the current working environment.
* @exception SystemException Thrown in any other situation.
*/
public void start (String serviceType, int timeout) throws WrongStateException, InvalidTimeoutException, SystemException;
/**
* Complete the activity with the current completion status.
*
* @exception InvalidActivityException Thrown if the current activity is
* invalid in the execution environment.
* @exception ActiveChildException Thrown if the current activity is a
* parent activity with active children.
* @exception WrongStateException Thrown if the current activity is not in a
* state that allows it to be completed in the status requested.
* @exception ProtocolViolationException Thrown if the a violation of the
* activity service or HLS protocol occurs.
* @exception NoActivityException Thrown if there is no activity
* associated with the invoking thread or none with the given type of coordinator.
* @exception NoPermissionException Thrown if the invoking thread does
* not have permission to terminate the transaction.
* @exception SystemException Thrown if some other error occurred.
*
* @return the result of completing the activity. Null is valid and must
* be interpreted within the context of any HLS that may exist.
*
* @see com.arjuna.mw.wsas.activity.Outcome
*/
public Outcome end () throws InvalidActivityException, WrongStateException, ProtocolViolationException, NoActivityException, ActiveChildException, SystemException, NoPermissionException;
/**
* Complete the activity with the completion status provided.
*
* @param cs The CompletionStatus to use.
*
* @exception InvalidActivityException Thrown if the current activity is
* invalid in the execution environment.
* @exception ActiveChildException Thrown if the current activity is a
* @exception WrongStateException Thrown if the current activity is not in a
* state that allows it to be completed, or is incompatible with the
* completion status provided.
* @exception ProtocolViolationException Thrown if the a violation of the
* activity service or HLS protocol occurs.
* @exception NoActivityException Thrown if there is no activity
* associated with the invoking thread or none with the given type of coordinator.
* @exception NoPermissionException Thrown if the invoking thread does
* not have permission to terminate the transaction.
* @exception SystemException Thrown if some other error occurred.
*
* @return the result of completing the activity. Null is valid and must
* be interpreted within the context of any HLS that may exist.
*
* @see com.arjuna.mw.wsas.activity.Outcome
*/
public Outcome end (CompletionStatus cs) throws InvalidActivityException, WrongStateException, ProtocolViolationException, SystemException, ActiveChildException, NoActivityException, NoPermissionException;
/**
* Set the termination status for the current activity, if any.
*
* @param endStatus The state in which the activity
* should attempt to terminate. This may be one of the default values
* provided by WSAS or may be extended in an implementation specific
* manner by an HLS.
*
* @exception NoActivityException Thrown if there is no activity
* associated with the invoking thread.
* @exception WrongStateException Thrown if the completion status is
* incompatible with the current state of the activity.
* @exception SystemException Thrown if any other error occurs.
*/
public void setCompletionStatus (CompletionStatus endStatus) throws NoActivityException, WrongStateException, SystemException;
/**
* Get the completion status currently associated with the activity.
*
* @exception NoActivityException Thrown if there is no activity
* associated with the current thread.
* @exception SystemException Thrown if any other error occurs.
*
* @return the termination status for the current activity, if any.
*/
public CompletionStatus getCompletionStatus () throws NoActivityException, SystemException;
/**
* Get the timeout value currently associated with activities.
*
* @exception SystemException Thrown if any error occurs.
*
* @return the timeout value in seconds, or 0 if no application specified
* timeout has been provided.
*/
public int getTimeout () throws SystemException;
/**
* Set the timeout to be associated with all subsequently created
* activities. A default value of 0 is automatically associated with
* each thread and this means that no application specified timeout is
* set for activities.
*
* @param timeout The timeout (in seconds) to associate with all
* subsequently created activities. This value must be 0 or greater.
*
* @exception InvalidTimeoutException Thrown if the timeout value provided
* is negative, too large, or if timeouts are simply not supported by
* the activity implementation.
* @exception SystemException Thrown if any other error occurs.
*/
public void setTimeout (int timeout) throws InvalidTimeoutException, SystemException;
/**
* @exception SystemException Thrown if any error occurs.
*
* @return the status of the current activity. If there is no
* activity associated with the thread then NoActivity
* will be returned.
*
* @see com.arjuna.mw.wsas.status.Status
*/
public com.arjuna.mw.wsas.status.Status status () throws SystemException;
/**
* What is the name of the current activity? Use only for
* debugging purposes!
*
* @exception NoActivityException Thrown if there is no activity
* associated with the invoking thread.
* @exception SystemException Thrown if any other error occurs.
*
* @return the name of the activity.
*/
public String activityName () throws NoActivityException, SystemException;
/**
* @return the unique activity id.
*
* @exception NoActivityException Thrown if there is no activity
* associated with the invoking thread.
* @exception SystemException Thrown if any other error occurs.
*/
public GlobalId activityId () throws NoActivityException, SystemException;
/**
* Suspend the current activity from this thread and return the token
* representing the context, if any, or null otherwise. Once called, the
* thread will have no activities associated with it.
*
* @exception SystemException Thrown if any error occurs.
*
* @return the token representing the current context, if any, or null
* otherwise.
*/
public ActivityHierarchy suspend () throws SystemException;
/**
* Given a token representing a context, associate it with the current
* thread of control. This will implicitly disassociate the thread from any
* activities that it may already be associated with. If the parameter is
* null then the thread is associated with no activity.
*
* @param tx The activity to associate with this thread. This
* may be null in which case the current thread becomes associated with
* no activity.
*
* @exception InvalidActivityException Thrown if the activity handle
* is invalid in this context.
* @exception SystemException Thrown if any other error occurs.
*/
public void resume (ActivityHierarchy tx) throws InvalidActivityException, SystemException;
/**
* @return the token representing the current activity context hierarchy,
* or null if there is none associated with the invoking thread.
*
* @exception SystemException Thrown if any error occurs.
*/
public ActivityHierarchy currentActivity () throws SystemException;
/**
* @return the service type supplied when the current activity was started.
*
* @exception NoActivityException Thrown if there is no activity
* associated with the invoking thread.
* @exception SystemException Thrown if any error occurs.
*/
public String serviceType() throws NoActivityException, SystemException;
}
