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27 
28 import com.sun.star.form.binding.*;
29 
30 /**
31  *
32  * @author  fs@openoffice.org
33  */
34 public class TextValidator extends ControlValidator
35 {
36 
37     /** Creates a new instance of NumericValidator */
38     public TextValidator( )
39     {
40     }
41 
42     public String explainInvalid( Object Value )
43     {
44         try
45         {
46             String value = (String)Value;
47             if ( containsZs( value ) )
48                 return "No Z's allowed here";
49             if ( !isProperChunks( value ) )
50                 return "Need 3 * n characters";
51         }
52         catch( java.lang.Exception e )
53         {
54             return "ooops. Unknown error";
55         }
56         return "";
57     }
58 
59     public boolean isValid( Object Value )
60     {
61         try
62         {
63             String value = (String)Value;
64             if ( containsZs( value ) )
65                 return false;
66             if ( !isProperChunks( value ) )
67                 return false;
68             return true;
69         }
70         catch( java.lang.Exception e )
71         {
72         }
73         return false;
74     }
75 
76     private boolean isProperChunks( String value )
77     {
78         return ( value.length() % 3 ) == 0;
79     }
80 
81     private boolean containsZs( String value )
82     {
83         if  (  ( value.indexOf( 'Z' ) != -1 )
84             || ( value.indexOf( 'z' ) != -1 )
85             )
86             return true;
87         return false;
88     }
89 }
90