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1   /***
2    * Redistribution  and use  in source  and binary  forms, with  or without
3    * modification, are permitted provided  that the following conditions are
4    * met :
5    *
6    * . Redistributions  of  source  code  must  retain  the  above copyright
7    *   notice, this list of conditions and the following disclaimer.
8    *
9    * . Redistributions in  binary form  must reproduce  the above  copyright
10   *   notice, this list of conditions  and the following disclaimer in  the
11   *   documentation and/or other materials provided with the distribution.
12   *
13   * . The name of the author may not be used to endorse or promote products
14   *   derived from this software without specific prior written permission.
15   *
16   * THIS SOFTWARE IS  PROVIDED BY THE  AUTHOR ``AS IS''  AND ANY EXPRESS  OR
17   * IMPLIED  WARRANTIES,  INCLUDING,  BUT   NOT  LIMITED  TO,  THE   IMPLIED
18   * WARRANTIES OF MERCHANTABILITY AND  FITNESS FOR A PARTICULAR  PURPOSE ARE
19   * DISCLAIMED.  IN NO  EVENT SHALL  THE AUTHOR  BE LIABLE  FOR ANY  DIRECT,
20   * INDIRECT,  INCIDENTAL,  SPECIAL,  EXEMPLARY,  OR  CONSEQUENTIAL  DAMAGES
21   * (INCLUDING,  BUT  NOT LIMITED  TO,  PROCUREMENT OF  SUBSTITUTE  GOODS OR
22   * SERVICES;  LOSS  OF USE,  DATA,  OR PROFITS;  OR  BUSINESS INTERRUPTION)
23   * HOWEVER CAUSED  AND ON  ANY THEORY  OF LIABILITY,  WHETHER IN  CONTRACT,
24   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25   * ANY  WAY  OUT OF  THE  USE OF  THIS  SOFTWARE, EVEN  IF  ADVISED OF  THE
26   * POSSIBILITY OF SUCH DAMAGE.
27   *
28   * $Id$
29   */
30  
31  package palmed;
32  
33  import javax.microedition.lcdui.Alert;
34  import javax.microedition.lcdui.AlertType;
35  import javax.microedition.lcdui.Display;
36  import javax.microedition.lcdui.Displayable;
37  import palmed.buffer.IResult;
38  
39  /***
40   * This class receives operation completion notifications.
41   *
42   * @author Mathieu Champlon
43   * @version $Revision$ $Date$
44   */
45  public final class Result implements IResult
46  {
47      /***
48       * The display.
49       */
50      private final Display display_;
51      /***
52       * The displayable to show after completion.
53       */
54      private final Displayable next_;
55  
56      /***
57       * Create a result.
58       *
59       * @param display the display
60       * @param next the displayable to show after completion
61       */
62      public Result( final Display display, final Displayable next )
63      {
64          if( display == null )
65              throw new IllegalArgumentException( "argument 'display' is null" );
66          if( next == null )
67              throw new IllegalArgumentException( "argument 'next' is null" );
68          display_ = display;
69          next_ = next;
70      }
71  
72      /***
73       * {@inheritDoc}
74       */
75      public void complete()
76      {
77          display_.setCurrent( next_ );
78      }
79  
80      /***
81       * {@inheritDoc}
82       */
83      public void error( final String message )
84      {
85          display_.setCurrent( new Alert( "Error", message, null, AlertType.ERROR ), next_ );
86      }
87  }