odk/examples/DevelopersGuide/Forms/TextValidator.java

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   9  * $RCSfile: TextValidator.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 TextValidator extends ControlValidator
  38 {
  39
  40     /** Creates a new instance of NumericValidator */
  41     public TextValidator( )
  42     {
  43     }
  44
  45     public String explainInvalid( Object Value )
  46     {
  47         try
  48         {
  49             String value = (String)Value;
  50             if ( containsZs( value ) )
  51                 return "No Z's allowed here";
  52             if ( !isProperChunks( value ) )
  53                 return "Need 3 * n characters";
  54         }
  55         catch( java.lang.Exception e )
  56         {
  57             return "ooops. Unknown error";
  58         }
  59         return "";
  60     }
  61
  62     public boolean isValid( Object Value )
  63     {
  64         try
  65         {
  66             String value = (String)Value;
  67             if ( containsZs( value ) )
  68                 return false;
  69             if ( !isProperChunks( value ) )
  70                 return false;
  71             return true;
  72         }
  73         catch( java.lang.Exception e )
  74         {
  75         }
  76         return false;
  77     }
  78
  79     private boolean isProperChunks( String value )
  80     {
  81         return ( value.length() % 3 ) == 0;
  82     }
  83
  84     private boolean containsZs( String value )
  85     {
  86         if  (  ( value.indexOf( 'Z' ) != -1 )
  87             || ( value.indexOf( 'z' ) != -1 )
  88             )
  89             return true;
  90         return false;
  91     }
  92 }