org.apache.commons.validator

Class DateValidator

java.lang.Object

org.apache.commons.validator.DateValidator

public class DateValidator
extends java.lang.Object

Perform date validations.

This class is a Singleton; you can retrieve the instance via the getInstance() method.

Since:

Validator 1.1

Field Summary

Fields

Modifier and Type	Field and Description
private static DateValidator	instance Singleton instance of this class.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DateValidator() Protected constructor for subclasses to use.

Method Summary

Methods

Modifier and Type	Method and Description
static DateValidator	getInstance() Returns the Singleton instance of this validator.
boolean	isValid(java.lang.String value, java.util.Locale locale) Checks if the field is a valid date.
boolean	isValid(java.lang.String value, java.lang.String datePattern, boolean strict) Checks if the field is a valid date.

Methods inherited from class java.lang.Object

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

Field Detail

instance

private static final DateValidator instance

Singleton instance of this class.

Constructor Detail

DateValidator

protected DateValidator()

Protected constructor for subclasses to use.

Method Detail

getInstance

public static DateValidator getInstance()

Returns the Singleton instance of this validator.

Returns:

A singleton instance of the DateValidator.

isValid

public boolean isValid(java.lang.String value,
              java.lang.String datePattern,
              boolean strict)

Checks if the field is a valid date. The pattern is used with java.text.SimpleDateFormat. If strict is true, then the length will be checked so '2/12/1999' will not pass validation with the format 'MM/dd/yyyy' because the month isn't two digits. The setLenient method is set to false for all.

Parameters:

value - The value validation is being performed on.

datePattern - The pattern passed to SimpleDateFormat.

strict - Whether or not to have an exact match of the datePattern.

Returns:

true if the date is valid.

isValid

public boolean isValid(java.lang.String value,
              java.util.Locale locale)

Checks if the field is a valid date. The Locale is used with java.text.DateFormat. The setLenient method is set to false for all.

Parameters:

value - The value validation is being performed on.

locale - The locale to use for the date format, defaults to the default system default if null.

Returns:

true if the date is valid.