DirContextHelper


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  
17  package org.apache.naming.core;
18  
19  import javax.naming.directory.DirContext  ;
20  
21  /**
22   * Utility class providing additional operations on DirContexts.
23   * Instead of extending DirContext we use a helper who will work
24   * on any context, including 'foreign' ones ( like JNDI, etc ).
25   *
26   * Typical methods - conversions ( int, boolean), etc.
27   *
28   * This code should check if the context extend our BaseDirContext
29   * and use specific features ( like notes - to cache the conversion
30   * results for example ), but fallback for external contexts.
31   *
32   * @author Costin Manolache
33   */
34  public class DirContextHelper  {
35      static DirContextHelper instance=new DirContextHelper();
36      
37      public static DirContextHelper getInstance() {
38          return instance;
39      }
40      
41      
42      /** Debugging string - the context, imediate childs and attributes
43       */
44      public String   toString(DirContext   ctx) {
45          return "";
46      }
47  
48      public int getIntAttribute( DirContext   ctx, String   name ) {
49          return 0;
50      }
51  
52      public long getLongAttribute( DirContext   ctx, String   name ) {
53          return 0;
54      }
55  
56      public String   getStringAttribute( DirContext   ctx, String   name ) {
57          return null;
58      }
59  
60      public boolean getBooleanAttribute( DirContext   ctx, String   name ) {
61          return false;
62      }
63  }
64  
65
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