HashMap


1   /*
2    * Copyright 1999-2004 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.apache.cocoon.util;
17  
18  import java.util.Map  ;
19  
20  /**
21   * Extended Version of {@link java.util.HashMap}.
22   *
23   * @author <a HREF="mailto:haul@apache.org">Christian Haul</a>
24   * @version CVS $Id: HashMap.java 30932 2004-07-29 17:35:38Z vgritsenko $
25   */
26  public class HashMap extends java.util.HashMap   {
27  
28      public HashMap () {
29      super();
30      }
31  
32      public HashMap ( int initialCapacity ) {
33      super(initialCapacity);
34      }
35  
36      public HashMap ( int initialCapacity, float loadFactor ) {
37      super(initialCapacity, loadFactor);
38      }
39  
40      public HashMap ( Map   t) {
41      super(t);
42      }
43  
44  
45      /**
46       * Get method extended by default object to be returned when key
47       * is not found.
48       *
49       * @param key key to look up
50       * @param _default default value to return if key is not found
51       * @return value that is associated with key
52       */
53      public Object   get ( Object   key, Object   _default ) {
54      if (this.containsKey(key)) {
55          return this.get(key);
56      } else {
57          return _default;
58      }
59      }
60  
61  }
62
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