org.apache.cocoon.forms.datatype.validationruleimpl
Class Mod10ValidationRule

java.lang.Object
  extended byorg.apache.cocoon.forms.datatype.validationruleimpl.AbstractValidationRule
      extended byorg.apache.cocoon.forms.datatype.validationruleimpl.Mod10ValidationRule
All Implemented Interfaces:
ValidationRule

public class Mod10ValidationRule
extends AbstractValidationRule

Performs the so called "mod 10" algorithm to check the validity of credit card numbers such as VISA.

In addition to this, the credit card number can be further validated by its length and prefix, but those properties are depended on the credit card type and such validation is not performed by this validation rule.

Version:
$Id: Mod10ValidationRule.html 1304280 2012-03-23 11:18:01Z ilgrosso $

Constructor Summary
Mod10ValidationRule()
           
 
Method Summary
 boolean supportsType(Class clazz, boolean arrayType)
          Returns true if this ValidationRule supports validating objects of the same class as the one specified.
 ValidationError validate(Object value, org.outerj.expression.ExpressionContext expressionContext)
           
 
Methods inherited from class org.apache.cocoon.forms.datatype.validationruleimpl.AbstractValidationRule
evaluateComparable, evaluateNumeric, getFailMessage, hasFailMessage, setFailMessage
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Mod10ValidationRule

public Mod10ValidationRule()
Method Detail

validate

public ValidationError validate(Object value,
                                org.outerj.expression.ExpressionContext expressionContext)
Parameters:
value - a value of a class supported by the ValidationRule implementation
expressionContext - many validation rules use the xReporter expression interpreter, the expressionContext allows to resolve variables used in these expressions.

supportsType

public boolean supportsType(Class clazz,
                            boolean arrayType)
Description copied from interface: ValidationRule
Returns true if this ValidationRule supports validating objects of the same class as the one specified. If the flag 'arrayType' is true, this method will return true if this validation rule can validate arrays of these objects (i.e. the object passed to the validate method will then be an array).



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