org.apache.commons.validator

Class 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

private static DateValidator
instance
Singleton instance of this class.

Constructor Summary

DateValidator()
Protected constructor for subclasses to use.

Method Summary

static DateValidator
getInstance()
Returns the Singleton instance of this validator.
boolean
isValid(String value, Locale locale)
Checks if the field is a valid date.
boolean
isValid(String value, String datePattern, boolean strict)
Checks if the field is a valid date.

Field Details

instance

private static final DateValidator instance
Singleton instance of this class.

Constructor Details

DateValidator

protected DateValidator()
Protected constructor for subclasses to use.

Method Details

getInstance

public static DateValidator getInstance()
Returns the Singleton instance of this validator.

isValid

public boolean isValid(String value,
                       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.

isValid

public boolean isValid(String value,
                       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.

Copyright (c) 2001-2004 Apache Software Foundation