Package com.vaadin.data.validator

Class RegexpValidator

java.lang.Object

com.vaadin.data.validator.AbstractValidator<String>

com.vaadin.data.validator.AbstractStringValidator

com.vaadin.data.validator.RegexpValidator

All Implemented Interfaces:

Validator, Serializable

Direct Known Subclasses:

EmailValidator

public class RegexpValidator
extends AbstractStringValidator

String validator comparing the string against a Java regular expression. Both complete matches and substring matches are supported.

For the Java regular expression syntax, see java.util.regex.Pattern#sum

See AbstractStringValidator for more information.

An empty string or a null is always accepted - use the required flag on fields or a separate validator (or override isValidValue(String)) to fail on empty values.

Since:

5.4

Author:

Vaadin Ltd.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.vaadin.data.Validator

Validator.EmptyValueException, Validator.InvalidValueException

Constructor Summary

Constructors

Constructor	Description
RegexpValidator(String regexp, boolean complete, String errorMessage)	Creates a validator for checking that the regular expression matches the string to validate.
RegexpValidator(String regexp, String errorMessage)	Creates a validator for checking that the regular expression matches the complete string to validate.

Method Summary

Modifier and Type	Method	Description
protected boolean	isValidValue(String value)	Internally check the validity of a value.

Methods inherited from class com.vaadin.data.validator.AbstractStringValidator

getType

Methods inherited from class com.vaadin.data.validator.AbstractValidator

getErrorMessage, isValid, isValidType, setErrorMessage, validate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RegexpValidator

public RegexpValidator(String regexp,
                       String errorMessage)

Creates a validator for checking that the regular expression matches the complete string to validate.

Parameters:

regexp - a Java regular expression

errorMessage - the message to display in case the value does not validate.

RegexpValidator

public RegexpValidator(String regexp,
                       boolean complete,
                       String errorMessage)

Creates a validator for checking that the regular expression matches the string to validate.

Parameters:

regexp - a Java regular expression

complete - true to use check for a complete match, false to look for a matching substring

errorMessage - the message to display in case the value does not validate.

Method Detail

isValidValue

protected boolean isValidValue(String value)

Description copied from class: AbstractValidator

Internally check the validity of a value. This method can be used to perform validation in subclasses if customization of the error message is not needed. Otherwise, subclasses should override AbstractValidator.validate(Object) and the return value of this method is ignored. This method should not be called from outside the validator class itself.

Specified by:

isValidValue in class AbstractValidator<String>

Returns: