IdentityConverter


1   /*
2    * Copyright (C) 2005 db4objects Inc.  http://www.db4o.com
3    * 
4    * All rights reserved. This program and the accompanying materials
5    * are made available under the terms of the Eclipse Public License v1.0
6    * which accompanies this distribution, and is available at
7    * http://www.eclipse.org/legal/epl-v10.html
8    *
9    * Contributors:
10   *     db4objects - Initial API and implementation
11   */
12  package org.eclipse.jface.internal.databinding.provisional.conversion;
13  
14  /**
15   * TheIdentityConverter. Returns the source value (the identity function).
16   */
17  public class IdentityConverter implements IConverter {
18  
19      private Class   fromType;
20  
21      private Class   toType;
22  
23      /**
24       * @param type
25       */
26      public IdentityConverter(Class   type) {
27          this.fromType = type;
28          this.toType = type;
29      }
30  
31      /**
32       * @param fromType
33       * @param toType
34       */
35      public IdentityConverter(Class   fromType, Class   toType) {
36          this.fromType = fromType;
37          this.toType = toType;
38      }
39  
40      /*
41       * (non-Javadoc)
42       * 
43       * @see org.eclipse.jface.binding.converter.IConverter#convert(java.lang.Object)
44       */
45      public Object   convert(Object   source) {
46          return source;
47      }
48  
49      public Object   getFromType() {
50          return fromType;
51      }
52  
53      public Object   getToType() {
54          return toType;
55      }
56  
57  }
58

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