1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * This library is free software; you can redistribute it and/or modify it under
5    * the terms of the GNU Lesser General Public License as published by the Free
6    * Software Foundation; either version 2.1 of the License, or (at your option)
7    * any later version.
8    *
9    * This library is distributed in the hope that it will be useful, but WITHOUT
10   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11   * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12   * details.
13   */
14  
15  package com.liferay.portal.cache.key;
16  
17  import com.liferay.portal.kernel.cache.key.CacheKeyGenerator;
18  import com.liferay.portal.kernel.util.StringBundler;
19  
20  /**
21   * <a href="BaseCacheKeyGenerator.java.html"><b><i>View Source</i></b></a>
22   *
23   * @author Shuyang Zhou
24   */
25  public abstract class BaseCacheKeyGenerator implements CacheKeyGenerator {
26  
27      public CacheKeyGenerator append(String key) {
28          keyBundler.append(key);
29  
30          return this;
31      }
32  
33      public CacheKeyGenerator append(String[] keys) {
34          keyBundler.append(keys);
35  
36          return this;
37      }
38  
39      public CacheKeyGenerator append(StringBundler sb) {
40          keyBundler.append(sb);
41  
42          return this;
43      }
44  
45      public abstract CacheKeyGenerator clone();
46  
47      public String finish() {
48          String cacheKey = getCacheKey(keyBundler);
49  
50          keyBundler.setIndex(0);
51  
52          return cacheKey;
53      }
54  
55      protected StringBundler keyBundler = new StringBundler();
56  
57  }