ZaurusComponent


1   /* Copyright (c) 2001-2005, The HSQL Development Group
2    * All rights reserved.
3    *
4    * Redistribution and use in source and binary forms, with or without
5    * modification, are permitted provided that the following conditions are met:
6    *
7    * Redistributions of source code must retain the above copyright notice, this
8    * list of conditions and the following disclaimer.
9    *
10   * Redistributions in binary form must reproduce the above copyright notice,
11   * this list of conditions and the following disclaimer in the documentation
12   * and/or other materials provided with the distribution.
13   *
14   * Neither the name of the HSQL Development Group nor the names of its
15   * contributors may be used to endorse or promote products derived from this
16   * software without specific prior written permission.
17   *
18   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21   * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
22   * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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26   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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28   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29   */
30  
31  
32  package org.hsqldb.util;
33  
34  /**
35   * Interface declaration
36   *
37   *
38   * @author ulrivo@users
39   * @version 1.0.0
40   */
41  
42  // a common interface for components for the GUI
43  // implemented by ZaurusTextField or a ZaurusChoice which are subclasses of TextField or Choice
44  // all ZaurusComponents behave similar in the ZaurusTableForm
45  public interface ZaurusComponent {
46  
47      // reset the counter of changes to the component
48      void clearChanges();
49  
50      // reset the component
51      void clearContent();
52  
53      // answer the content of the component
54      String   getContent();
55  
56      // answer whether the content has changed
57      boolean hasChanged();
58  
59      // tell component that it has been changed
60      void setChanged();
61  
62      // request the focus
63      void requestFocus();
64  
65      // set a new content
66      void setContent(String   s);
67  
68      // make the component editable or not editable
69      void setEditable(boolean b);
70  }
71
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