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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.impl.pvm.delegate;

import org.activiti.engine.delegate.DelegateExecution;



/** behavior for activities that delegate to a complete separate execution of 
 * a process definition.  In BPMN terminology this can be used to implement a reusable subprocess.
 * 
 * @author Tom Baeyens
 */
public interface SubProcessActivityBehavior extends ActivityBehavior {

  /** called before the process instance is destroyed to allow 
   * this activity to extract data from the sub process instance.
   * No control flow should be done on the execution yet. */
  void completing(DelegateExecution execution, DelegateExecution subProcessInstance) throws Exception;
  
  /** called after the process instance is destroyed for  
   * this activity to perform its outgoing control flow logic. */
  void completed(ActivityExecution execution) throws Exception;
}