InstanceMixinFactory


1   /*****************************************************************************
2    * Copyright (c) PicoContainer Organization. All rights reserved.            *
3    * ------------------------------------------------------------------------- *
4    * The software in this package is published under the terms of the BSD      *
5    * style license a copy of which has been included with this distribution in *
6    * the LICENSE.txt file.                                                     *
7    *                                                                           *
8    * Idea by Rachel Davies, Original code by various                           *
9    *****************************************************************************/
10  package org.nanocontainer.aop.dynaop;
11  
12  import dynaop.MixinFactory;
13  import dynaop.Proxy;
14  
15  import java.util.Properties  ;
16  
17  /**
18   * Produces mixin advice from a mixin instance object.
19   *
20   * @author Stephen Molitor
21   * @version $Revision: 3144 $
22   */
23  public class InstanceMixinFactory implements MixinFactory {
24  
25      private final Object   instance;
26  
27      /**
28       * Creates a new <code>InstanceMixinFactory</code> with the given mixin
29       * instance.
30       *
31       * @param instance the mixin instance.
32       */
33      public InstanceMixinFactory(Object   instance) {
34          this.instance = instance;
35      }
36  
37      /**
38       * Returns the mixin instance passed to the constructor.
39       *
40       * @param proxy not used.
41       * @return the mixin instance object passed to the constructor.
42       */
43      public Object   create(Proxy proxy) {
44          return instance;
45      }
46  
47      /**
48       * Used for debugging.
49       *
50       * @return a set of properties useful for debugging.
51       */
52      public Properties   getProperties() {
53          Properties   properties = new Properties  ();
54          properties.setProperty("advice", "instance mixin");
55          return properties;
56      }
57  
58  }
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