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     *     http://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     */
017    package org.apache.commons.configuration;
018    
019    import java.util.Iterator;
020    
021    /**
022     * A specialized configuration implementation that does not support cloning.
023     * This class is only used in some test cases for testing implementations of
024     * clone() methods. It does not make much sense otherwise; all methods are just
025     * dummies.
026     *
027     * @version $Id: NonCloneableConfiguration.java 1222456 2011-12-22 21:11:39Z oheger $
028     */
029    public class NonCloneableConfiguration extends AbstractConfiguration
030    {
031        /**
032         * Dummy implementation of this method.
033         */
034        @Override
035        protected void addPropertyDirect(String key, Object value)
036        {
037        }
038    
039        /**
040         * Dummy implementation of this method.
041         */
042        public boolean isEmpty()
043        {
044            return true;
045        }
046    
047        /**
048         * Dummy implementation of this method.
049         */
050        public boolean containsKey(String key)
051        {
052            return false;
053        }
054    
055        /**
056         * Dummy implementation of this method.
057         */
058        public Iterator<String> getKeys()
059        {
060            return null;
061        }
062    
063        /**
064         * Dummy implementation of this method.
065         */
066        public Object getProperty(String key)
067        {
068            return null;
069        }
070    }