001    /**
002     * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.cache.key;
016    
017    import com.liferay.portal.kernel.util.StringBundler;
018    
019    /**
020     * @author Brian Wing Shun Chan
021     */
022    public class ThreadSafeCacheKeyGenerator extends CacheKeyGeneratorWrapper {
023    
024            public ThreadSafeCacheKeyGenerator(CacheKeyGenerator cacheKeyGenerator) {
025                    super(cacheKeyGenerator);
026            }
027    
028            @Override
029            public CacheKeyGenerator append(String key) {
030                    throw new UnsupportedOperationException();
031            }
032    
033            @Override
034            public CacheKeyGenerator append(String[] keys) {
035                    throw new UnsupportedOperationException();
036            }
037    
038            @Override
039            public CacheKeyGenerator append(StringBundler sb) {
040                    throw new UnsupportedOperationException();
041            }
042    
043            @Override
044            public CacheKeyGenerator clone() {
045                    return this;
046            }
047    
048    }