001    /**
002     * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portal.cache.key;
016    
017    import com.liferay.portal.kernel.cache.key.CacheKeyGenerator;
018    import com.liferay.portal.kernel.util.StringBundler;
019    
020    /**
021     * @author Shuyang Zhou
022     */
023    public abstract class BaseCacheKeyGenerator implements CacheKeyGenerator {
024    
025            public CacheKeyGenerator append(String key) {
026                    keyBundler.append(key);
027    
028                    return this;
029            }
030    
031            public CacheKeyGenerator append(String[] keys) {
032                    keyBundler.append(keys);
033    
034                    return this;
035            }
036    
037            public CacheKeyGenerator append(StringBundler sb) {
038                    keyBundler.append(sb);
039    
040                    return this;
041            }
042    
043            public abstract CacheKeyGenerator clone();
044    
045            public String finish() {
046                    String cacheKey = getCacheKey(keyBundler);
047    
048                    keyBundler.setIndex(0);
049    
050                    return cacheKey;
051            }
052    
053            protected StringBundler keyBundler = new StringBundler();
054    
055    }