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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.history;

import java.util.Date;



/** Base class for all kinds of information that is related to 
 * either a {@link HistoricProcessInstance} or a {@link HistoricActivityInstance}.
 * 
 * @author Tom Baeyens
 */
public interface HistoricDetail extends HistoricData {

  /** The unique DB id for this historic detail */
  String getId();
  
  /** The process instance reference. */
  String getProcessInstanceId();

  /** The activity reference in case this detail is related to an activity instance. */
  String getActivityInstanceId();

  /** The identifier for the path of execution. */
  String getExecutionId();
  
  /** The identifier for the task. */
  String getTaskId();
  
  /** The time when this detail occurred */
  Date getTime();
}