/*

  * Licensed to the Apache Software Foundation (ASF) under one or more

  * contributor license agreements.  See the NOTICE file distributed with

  * this work for additional information regarding copyright ownership.

  * The ASF licenses this file to You 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.apache.commons.pipeline;

 /**

  * This interface specifies a job or set of tasks that are to be run at a 

  * well-specified points in the pipeline lifecycle. It is intended to be a

  * means by which third-party plugins can be added to the pipeline framework.

  */

 public interface PipelineLifecycleJob {

     /**

      * This is called by the pipeline engine once the pipeline is fully configured,

      * just prior to stage driver start.

      */

     public void onStart(Pipeline pipeline);

     /**

      * This is called by the pipeline engine after all data processing has completed.

      */

     public void onFinish(Pipeline pipeline);

 }