001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *     https://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.configuration2.io;
018
019/**
020 * An adapter class simplifying the implementation of custom {@code FileHandlerListener} classes.
021 * <p>
022 * This class provides empty dummy implementations for all methods defined by the {@code FileHandlerListener} interface.
023 * Custom listener implementations can extend this adapter class and override only the methods they actually need.
024 * </p>
025 *
026 * @since 2.0
027 */
028public class FileHandlerListenerAdapter implements FileHandlerListener {
029
030    /**
031     * Constructs a new instance.
032     */
033    public FileHandlerListenerAdapter() {
034        // empty
035    }
036
037    @Override
038    public void loaded(final FileHandler handler) {
039        // empty
040    }
041
042    @Override
043    public void loading(final FileHandler handler) {
044        // empty
045    }
046
047    @Override
048    public void locationChanged(final FileHandler handler) {
049        // empty
050    }
051
052    @Override
053    public void saved(final FileHandler handler) {
054        // empty
055    }
056
057    @Override
058    public void saving(final FileHandler handler) {
059        // empty
060    }
061}