1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package org.apache.commons.configuration.reloading; 19 20 import org.apache.commons.configuration.FileConfiguration; 21 22 /** 23 * A strategy to decide if a configuration should be reloaded. 24 * 25 * @author Emmanuel Bourg 26 * @version $Id: ReloadingStrategy.java 1210646 2011-12-05 21:25:01Z oheger $ 27 * @since 1.1 28 */ 29 public interface ReloadingStrategy 30 { 31 /** 32 * Set the configuration managed by this strategy. 33 * 34 * @param configuration the configuration to monitor 35 */ 36 void setConfiguration(FileConfiguration configuration); 37 38 /** 39 * Initialize the strategy. 40 */ 41 void init(); 42 43 /** 44 * Tell if the evaluation of the strategy requires to reload the configuration. 45 * 46 * @return a flag whether a reload should be performed 47 */ 48 boolean reloadingRequired(); 49 50 /** 51 * Notify the strategy that the file has been reloaded. 52 */ 53 void reloadingPerformed(); 54 55 }