org.apache.commons.validator.routines
Class CurrencyValidator

java.lang.Object
  |
  +--org.apache.commons.validator.routines.AbstractFormatValidator
        |
        +--org.apache.commons.validator.routines.AbstractNumberValidator
              |
              +--org.apache.commons.validator.routines.BigDecimalValidator
                    |
                    +--org.apache.commons.validator.routines.CurrencyValidator

All Implemented Interfaces:

java.io.Serializable

public class CurrencyValidator

extends BigDecimalValidator

Currency Validation and Conversion routines (java.math.BigDecimal).

This is one implementation of a currency validator that has the following features:

• It is lenient about the the presence of the currency symbol
• It converts the currency to a java.math.BigDecimal

However any of the number validators can be used for currency validation. For example, if you wanted a currency validator that converts to a java.lang.Integer then you can simply instantiate an IntegerValidator with the appropriate format type:

... = new IntegerValidator(false, IntegerValidator.CURRENCY_FORMAT);

Pick the appropriate validator, depending on the type (e.g Float, Double, Integer, Long etc) you want the currency converted to. One thing to note - only the CurrencyValidator implements lenient behaviour regarding the currency symbol.

Since:

Validator 1.3.0

Version:

$Revision: 478334 $ $Date: 2006-11-22 21:31:54 +0000 (Wed, 22 Nov 2006) $

See Also:

Serialized Form

Fields inherited from class org.apache.commons.validator.routines.AbstractNumberValidator

CURRENCY_FORMAT, PERCENT_FORMAT, STANDARD_FORMAT

Constructor Summary

CurrencyValidator()
Construct a strict instance.

CurrencyValidator(boolean strict, boolean allowFractions)
Construct an instance with the specified strict setting.

Method Summary

static BigDecimalValidator	getInstance() Return a singleton instance of this validator.
protected java.lang.Object	parse(java.lang.String value, java.text.Format formatter) Parse the value with the specified Format.

Methods inherited from class org.apache.commons.validator.routines.BigDecimalValidator

isInRange, maxValue, minValue, processParsedValue, validate, validate, validate, validate

Methods inherited from class org.apache.commons.validator.routines.AbstractNumberValidator

determineScale, getFormat, getFormat, getFormatType, isAllowFractions, isInRange, isValid, maxValue, minValue, parse

Methods inherited from class org.apache.commons.validator.routines.AbstractFormatValidator

format, format, format, format, format, isStrict, isValid, isValid, isValid

Methods inherited from class java.lang.Object

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

Constructor Detail

CurrencyValidator

public CurrencyValidator()

Construct a strict instance.

CurrencyValidator

public CurrencyValidator(boolean strict,
                         boolean allowFractions)

Construct an instance with the specified strict setting.

Parameters:

strict - true if strict Format parsing should be used.

allowFractions - true if fractions are allowed or false if integers only.

Method Detail

getInstance

public static BigDecimalValidator getInstance()

Return a singleton instance of this validator.

Returns:

A singleton instance of the CurrencyValidator.

parse

protected java.lang.Object parse(java.lang.String value,
                                 java.text.Format formatter)

Parse the value with the specified Format.

This implementation is lenient whether the currency symbol is present or not. The default NumberFormat behaviour is for the parsing to "fail" if the currency symbol is missing. This method re-parses with a format without the currency symbol if it fails initially.

Overrides:

parse in class AbstractFormatValidator

Parameters:

value - The value to be parsed.

formatter - The Format to parse the value with.

Returns:

The parsed value if valid or null if invalid.