Example usage for com.google.gwt.libideas.validation.client ErrorHandler reportError

Introduction

In this page you can find the example usage for com.google.gwt.libideas.validation.client ErrorHandler reportError.

Prototype

public void reportError(Subject subject, String errorMessage) 

Source Link

Document

Reports that a subject reported an error during validation.

Usage

From source file:com.google.gwt.demos.validation.client.ValidationDemo.java

License:Apache License

/**
 * This validator checks that the statute of limitations has not run out for
 * the given crime code. The Mayberry judicial system encodes the statute of
 * limitations as the first two digits of the crime code; this is checked
 * against the date of the crime.//from  ww w . j a v  a2s .  c  o  m
 */
private Validator createStatuteValidator(final TextBox crimeCode) {
    // Now, to show a custom validator. Using BuiltInValidator because we want
    // to use the built-in error messages for Date conversion.
    Validator statuteValidator = new BuiltInValidator() {
        public void checkValid(Subject subject, ErrorHandler handler) {
            String code = crimeCode.getText();
            Date dateOfCrime = null;
            try {
                dateOfCrime = getDate(subject);
            } catch (ValidationException e) {
                // Not our problem if the dateOfCrime cannot be formatted as a date.
            }
            if (dateOfCrime == null) {
                return;
            }

            if (code.matches(CRIME_CODE_FORMAT)) {
                int years = statuteOfLimitations(code.trim());
                Date lastValidDate = offsetDate(years);
                if (dateOfCrime.before(lastValidDate)) {
                    // We could get this information from a messages file in we needed
                    // internationalization.
                    handler.reportError(subject, "Statute of limitations has expired.");
                }
            }
        }

    };
    return statuteValidator;
}

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