/*

  * 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.configuration.reloading;

 import org.apache.commons.configuration.FileConfiguration;

 /**

  * A strategy to decide if a configuration should be reloaded.

  *

  * @author Emmanuel Bourg

  * @author Olivier Heger

  * @version $Revision: 439648 $, $Date: 2006-09-02 22:42:10 +0200 (Sa, 02 Sep 2006) $

  * @since 1.1

  */

 public interface ReloadingStrategy

 {

     /**

      * Set the configuration managed by this strategy.

      *

      * @param configuration the configuration to monitor

      */

     void setConfiguration(FileConfiguration configuration);

     /**

      * Initialize the strategy.

      */

     void init();

     /**

      * Tell if the evaluation of the strategy requires to reload the configuration.

      *

      * @return a flag whether a reload should be performed

      */

     boolean reloadingRequired();

     /**

      * Notify the strategy that the file has been reloaded.

      */

     void reloadingPerformed();

 }