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/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License 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 org.activiti.engine.runtime;

import java.util.Map;

import org.activiti.engine.repository.ProcessDefinition;



/** Represents one execution of a  {@link ProcessDefinition}.
 * 
 * @author Tom Baeyens
 * @author Joram Barrez
 * @author Daniel Meyer
 * @author Tijs Rademakers
 */
public interface ProcessInstance extends Execution {
  
  /**
   * The id of the process definition of the process instance.
   */
  String getProcessDefinitionId();
  
  /**
   * The name of the process definition of the process instance.
   */
  String getProcessDefinitionName();
  
  /**
   * The key of the process definition of the process instance.
   */
  String getProcessDefinitionKey();
  
  /**
   * The version of the process definition of the process instance.
   */
  Integer getProcessDefinitionVersion();
  
  /**
   * The deployment id of the process definition of the process instance.
   */
  String getDeploymentId();
  
  /**
   * The business key of this process instance.
   */
  String getBusinessKey();
  
  /**
   * returns true if the process instance is suspended
   */
  boolean isSuspended();
  
  /** 
   * Returns the process variables if requested in the process instance query 
   */
  Map getProcessVariables();
  
  /** 
   * The tenant identifier of this process instance 
   */
  String getTenantId();
  
  /**
   * Returns the name of this process instance. 
   */
  String getName();
  
}