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/*
 * Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
 * under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership. Camunda licenses this file to you under the Apache License,
 * Version 2.0; 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.camunda.bpm.engine.history;

/**
 *
 * @author Roman Smirnov
 *
 */
public interface HistoricActivityStatistics {

  /**
   * The activity id.
   */
  String getId();

  /**
   * The number of all running instances of the activity.
   */
  long getInstances();

  /**
   * The number of all finished instances of the activity.
   */
  long getFinished();

  /**
   * The number of all canceled instances of the activity.
   */
  long getCanceled();

  /**
   * The number of all instances, which complete a scope (ie. in bpmn manner: an activity
   * which consumed a token and did not produced a new one), of the activity.
   */
  long getCompleteScope();

  /** The number of open incidents of the activity. */
  long getOpenIncidents();

  /** The number of resolved incidents of the activity. */
  long getResolvedIncidents();

  /** The number of deleted incidents of the activity. */
  long getDeletedIncidents();
}