odk/examples/DevelopersGuide/Forms/BooleanValidator.java

   1 /* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 import com.sun.star.uno.AnyConverter;
   3
   4 /*************************************************************************
   5  *
   6  *  The Contents of this file are made available subject to the terms of
   7  *  the BSD license.
   8  *
   9  *  Copyright 2000, 2010 Oracle and/or its affiliates.
  10  *  All rights reserved.
  11  *
  12  *  Redistribution and use in source and binary forms, with or without
  13  *  modification, are permitted provided that the following conditions
  14  *  are met:
  15  *  1. Redistributions of source code must retain the above copyright
  16  *     notice, this list of conditions and the following disclaimer.
  17  *  2. Redistributions in binary form must reproduce the above copyright
  18  *     notice, this list of conditions and the following disclaimer in the
  19  *     documentation and/or other materials provided with the distribution.
  20  *  3. Neither the name of Sun Microsystems, Inc. nor the names of its
  21  *     contributors may be used to endorse or promote products derived
  22  *     from this software without specific prior written permission.
  23  *
  24  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  25  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  26  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  27  *  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  28  *  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  29  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  30  *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  31  *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  32  *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  33  *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  34  *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  *
  36  *************************************************************************/
  37
  38 public class BooleanValidator extends ControlValidator
  39 {
  40     private boolean                         m_preventChecked;
  41
  42     /** Creates a new instance of BooleanValidator */
  43     public BooleanValidator( boolean preventChecked )
  44     {
  45         m_preventChecked = preventChecked;
  46     }
  47
  48     public String explainInvalid( Object Value )
  49     {
  50         try
  51         {
  52             if ( AnyConverter.isVoid( Value ) )
  53                 return "'indetermined' is not an allowed state";
  54             boolean value = ((Boolean)Value).booleanValue();
  55             if ( m_preventChecked && ( value == true ) )
  56                 return "no no no. Don't check it.";
  57         }
  58         catch( java.lang.Exception e )
  59         {
  60             return "ooops. Unknown error";
  61         }
  62         return "";
  63     }
  64
  65     public boolean isValid( Object Value )
  66     {
  67         try
  68         {
  69             if ( AnyConverter.isVoid( Value ) )
  70                 return false;
  71
  72             boolean value = ((Boolean)Value).booleanValue();
  73             if ( m_preventChecked && ( value == true ) )
  74                 return false;
  75             return true;
  76         }
  77         catch( java.lang.Exception e )
  78         {
  79         }
  80         return false;
  81     }
  82 }
  83
  84 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */