odk/examples/DevelopersGuide/Forms/TimeValidator.java

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   9  * $RCSfile: TimeValidator.java,v $
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  30
  31 import com.sun.star.form.binding.*;
  32
  33 /**
  34  *
  35  * @author  fs@openoffice.org
  36  */
  37 public class TimeValidator extends ControlValidator
  38 {
  39
  40     /** Creates a new instance of NumericValidator */
  41     public TimeValidator( )
  42     {
  43     }
  44
  45     public String explainInvalid( Object Value )
  46     {
  47         try
  48         {
  49             if ( isVoid( Value ) )
  50                 return "empty input";
  51
  52             com.sun.star.util.Time timeValue = (com.sun.star.util.Time)Value;
  53             if ( isInvalidTime( timeValue ) )
  54                 return "this is no valid time";
  55             if ( !isFullHour( timeValue ) )
  56                 return "time must denote a full hour";
  57         }
  58         catch( java.lang.Exception e )
  59         {
  60             return "this is no valid time";
  61         }
  62         return "";
  63     }
  64
  65     public boolean isValid( Object Value )
  66     {
  67         try
  68         {
  69             if ( isVoid( Value ) )
  70                 return false;
  71
  72             com.sun.star.util.Time timeValue = (com.sun.star.util.Time)
  73                 com.sun.star.uno.AnyConverter.toObject(
  74                     com.sun.star.util.Time.class, Value);
  75             if ( isInvalidTime( timeValue ) )
  76                 return false;
  77             if ( !isFullHour( timeValue ) )
  78                 return false;
  79             return true;
  80         }
  81         catch( java.lang.Exception e )
  82         {
  83             e.printStackTrace( System.err );
  84         }
  85         return false;
  86     }
  87
  88     private boolean isInvalidTime( com.sun.star.util.Time timeValue )
  89     {
  90         return ( timeValue.Hours == -1 ) && ( timeValue.Minutes == -1 ) && ( timeValue.Seconds == -1 ) && ( timeValue.HundredthSeconds == -1 );
  91     }
  92
  93     private boolean isFullHour( com.sun.star.util.Time timeValue )
  94     {
  95         return ( timeValue.Minutes == 0 ) && ( timeValue.Seconds == 0 ) && ( timeValue.HundredthSeconds == 0 );
  96     }
  97 }