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 package javax.faces.validator;
 

A Validator that checks against a Regular Expression (which is the pattern property). The pattern must resolve to a String that follows the java.util.regex standards.

Since:
2.0
 
 public class RegexValidator implements ValidatorPartialStateHolder {
 
     private String regex;

    

The standard converter id for this converter.

 
     public static final String VALIDATOR_ID = "javax.faces.RegularExpression";

    

The message identifier of the javax.faces.application.FacesMessage to be created if the value returned from getPattern() is null or the empty String.

 
     public static final String PATTERN_NOT_SET_MESSAGE_ID =
          "javax.faces.validator.RegexValidator.PATTERN_NOT_SET";

    

The message identifier of the javax.faces.application.FacesMessage to be created if the act of matching the value against the pattern returned from getPattern() fails because the value does not match the pattern.

 
     public static final String NOT_MATCHED_MESSAGE_ID =
          "javax.faces.validator.RegexValidator.NOT_MATCHED";

    

The message identifier of the javax.faces.application.FacesMessage to be created if the act of matching the value against the pattern returned from getPattern() fails because of a PatternSyntaxException.

 
     public static final String MATCH_EXCEPTION_MESSAGE_ID =
          "javax.faces.validator.RegexValidator.MATCH_EXCEPTION";


    

The Regular Expression property to validate against.

Parameters:
pattern a regular expression pattern
    public void setPattern(String pattern) {
        clearInitialState();
        this. = pattern;
    }

    

Return the ValueExpression that yields the regular expression pattern when evaluated.

    public String getPattern() {
        return this.;
    }

    
Validate a String against a regular expression pattern. The full regex pattern must be matched in order to pass the validation.

Parameters:
context
component
value
Throws:
java.lang.NullPointerException
ValidatorException
    public void validate(FacesContext context,
                         UIComponent component,
                         Object value) {
        if (context == null) {
            throw new NullPointerException();
        }
        if (component == null) {
            throw new NullPointerException();
        }
        
        if (value == null) {
            return;
        }
        FacesMessage fmsg;
        Locale locale = context.getViewRoot().getLocale();
        if ( == null || .length() == 0) {
            fmsg = MessageFactory.getMessage(locale,
                    ,
                    (Objectnull);
            throw new ValidatorException(fmsg);
        }
        try {
            Pattern pattern = Pattern.compile();
            Matcher matcher = pattern.matcher((Stringvalue);
            if (!matcher.matches()) {
                Object[] params = {  };
                fmsg = MessageFactory.getMessage(locale,
                        ,
                        params);
                throw new ValidatorException(fmsg);
            }
        } catch (PatternSyntaxException pse) {
            fmsg = MessageFactory.getMessage(locale,
                    ,
                    (Objectnull);
            throw new ValidatorException(fmsgpse);
        }
    }
    
    // ----------------------------------------------------- StateHolder Methods
    public Object saveState(FacesContext context) {
        if (context == null) {
            throw new NullPointerException();
        }
        if (!initialStateMarked()) {
            Object values[] = new Object[1];
            values[0] = ;
            return (values);
        }
        return null;
    }
    public void restoreState(FacesContext contextObject state) {
        if (context == null) {
            throw new NullPointerException();
        }
        if (state != null) {
            Object values[] = (Object[]) state;
             = (Stringvalues[0];
        }
    }
    private boolean transientValue = false;
    public boolean isTransient() {
        return (this.);
    }
    public void setTransient(boolean transientValue) {
        this. = transientValue;
    }
    private boolean initialState;
    public void markInitialState() {
         = true;
    }
    public boolean initialStateMarked() {
        return ;
    }
    public void clearInitialState() {
         = false;
    }
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