InputVerifierNumber


1   /*
2    * Project: Gulden Utilies
3    * Class:   de.gulden.util.swing.InputVerifierNumber
4    * Version: snapshot-beautyj-1.1
5    *
6    * Date:    2004-09-29
7    *
8    * This is a snapshot version of the Gulden Utilities,
9    * it is not released as a seperate version.
10   *  
11   * Note:    Contains auto-generated Javadoc comments created by BeautyJ.
12   *  
13   * This is licensed under the GNU Lesser General Public License (LGPL)
14   * and comes with NO WARRANTY.
15   *
16   * Author:  Jens Gulden
17   * Email:   amoda@jensgulden.de
18   */
19  
20  package de.gulden.util.swing;
21  
22  import java.util.*;
23  import javax.swing.InputVerifier  ;
24  import javax.swing.JComponent  ;
25  
26  /**
27   * Class InputVerifierNumber.
28   *  
29   * @author  Jens Gulden
30   * @version  snapshot-beautyj-1.1
31   */
32  public class InputVerifierNumber extends InputVerifier   {
33  
34      // ------------------------------------------------------------------------
35      // --- field                                                            ---
36      // ------------------------------------------------------------------------
37  
38      /**
39       * The type.
40       */
41      protected Class   type;
42  
43  
44      // ------------------------------------------------------------------------
45      // --- constructors                                                     ---
46      // ------------------------------------------------------------------------
47  
48      /**
49       * Creates a new instance of InputVerifierNumber.
50       */
51      public InputVerifierNumber() {
52          this(Integer  .class);
53      }
54  
55      /**
56       * Creates a new instance of InputVerifierNumber.
57       */
58      public InputVerifierNumber(Class   type) {
59          super();
60          setType(type);
61      }
62  
63  
64      // ------------------------------------------------------------------------
65      // --- methods                                                          ---
66      // ------------------------------------------------------------------------
67  
68      public boolean verify(JComponent   input) {
69          // can only verify JTextComponent
70          javax.swing.text.JTextComponent   textComponent=(javax.swing.text.JTextComponent  )input;
71          Number   number=(Number  )de.gulden.util.Toolbox.invokeValueOf(type,textComponent.getText());
72          return (number!=null);
73      }
74  
75      /**
76       * Returns the type.
77       */
78      public Class   getType() {
79          return type;
80      }
81  
82      /**
83       * Sets the type.
84       */
85      public void setType(Class   _type) {
86          type = _type;
87      }
88  
89  } // end InputVerifierNumber
90
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