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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 org.activiti.engine.query.Query;
import org.activiti.engine.runtime.Execution;


/** 
 * Programmatic querying for {@link HistoricDetail}s.
 * 
 * @author Tom Baeyens
 */
public interface HistoricDetailQuery extends Query {
  
  /** Only select historic info with the given id. */
  HistoricDetailQuery id(String id);

  /** Only select historic variable updates with the given process instance.
   * {@link ProcessInstance) ids and {@link HistoricProcessInstance} ids match. */
  HistoricDetailQuery processInstanceId(String processInstanceId);
  
  /** Only select historic variable updates with the given execution.
   * Note that {@link Execution} ids are not stored in the history as first class citizen, 
   * only process instances are.*/
  HistoricDetailQuery executionId(String executionId);

  /** Only select historic variable updates associated to the given {@link HistoricActivityInstance activity instance}. */
  HistoricDetailQuery activityInstanceId(String activityInstanceId);

  /** Only select historic variable updates associated to the given {@link HistoricTaskInstance historic task instance}. */
  HistoricDetailQuery taskId(String taskId);

  /** Only select {@link HistoricFormProperty}s. */
  HistoricDetailQuery formProperties();

  /** Only select {@link HistoricVariableUpdate}s. */
  HistoricDetailQuery variableUpdates();
  
  /** Exclude all task-related {@link HistoricDetail}s, so only items which have no 
   * task-id set will be selected. When used togheter with {@link #taskId(String)}, this
   * call is ignored task details are NOT excluded.
   */
  HistoricDetailQuery excludeTaskDetails();

  HistoricDetailQuery orderByProcessInstanceId();
  
  HistoricDetailQuery orderByVariableName();
  
  HistoricDetailQuery orderByFormPropertyId();
  
  HistoricDetailQuery orderByVariableType();
  
  HistoricDetailQuery orderByVariableRevision();
  
  HistoricDetailQuery orderByTime();
}