com.opensymphony.xwork2.validator.validators
Class FieldExpressionValidator

java.lang.Object
  com.opensymphony.xwork2.validator.validators.ValidatorSupport
      com.opensymphony.xwork2.validator.validators.FieldValidatorSupport
          com.opensymphony.xwork2.validator.validators.FieldExpressionValidator

All Implemented Interfaces:

FieldValidator, ShortCircuitableValidator, Validator

public class FieldExpressionValidator
extends FieldValidatorSupport

Validates a field using an OGNL expression.

• fieldName - The field name this validator is validating. Required if using Plain-Validator Syntax otherwise not required
• expression - The Ognl expression (must evaluate to a boolean) which is to be evalidated the stack

 
    <!-- Plain Validator Syntax -->
    <validators>
        <!-- Plain Validator Syntax -->
        <validator type="fieldexpression">
           <param name="fieldName">myField</param>
           <param name="expression"><![CDATA[#myCreditLimit > #myGirfriendCreditLimit]]></param>
           <message>My credit limit should be MORE than my girlfriend</message>
        <validator>
        
        <!-- Field Validator Syntax -->
        <field name="myField">
            <field-validator type="fieldexpression">
                <param name="expression"><![CDATA[#myCreditLimit > #myGirfriendCreditLimit]]></param>
                <message>My credit limit should be MORE than my girlfriend</message>
            </field-validator>
        </field>
        
    </vaidators>
 
 

Version:

$Revision: 1063 $

Author:

$Author: mrdon $

Field Summary

Fields inherited from class com.opensymphony.xwork2.validator.validators.ValidatorSupport

defaultMessage, log, messageKey

Constructor Summary

FieldExpressionValidator()

Method Summary

String	getExpression()
void	setExpression(String expression)
void	validate(Object object) The validation implementation must guarantee that setValidatorContext will be called with a non-null ValidatorContext before validate is called.

Methods inherited from class com.opensymphony.xwork2.validator.validators.FieldValidatorSupport

getFieldName, getValidatorType, setFieldName, setValidatorType

Methods inherited from class com.opensymphony.xwork2.validator.validators.ValidatorSupport

addActionError, addFieldError, conditionalParse, getDefaultMessage, getFieldValue, getMessage, getMessageKey, getMessageParameters, getParse, getValidatorContext, isShortCircuit, setDefaultMessage, setMessageKey, setMessageParameters, setParse, setShortCircuit, setValidatorContext, setValueStack

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.opensymphony.xwork2.validator.Validator

getDefaultMessage, getMessage, getMessageKey, getMessageParameters, getValidatorContext, setDefaultMessage, setMessageKey, setMessageParameters, setValidatorContext, setValueStack

Constructor Detail

FieldExpressionValidator

public FieldExpressionValidator()

Method Detail

setExpression

public void setExpression(String expression)

getExpression

public String getExpression()

validate

public void validate(Object object)
              throws ValidationException

Description copied from interface: Validator

The validation implementation must guarantee that setValidatorContext will be called with a non-null ValidatorContext before validate is called.

Parameters:

object - the object to be validated.

Throws:

ValidationException - is thrown if there is validation error(s).