Class FieldExpressionValidator
java.lang.Object
org.apache.struts2.validator.validators.ValidatorSupport
org.apache.struts2.validator.validators.FieldValidatorSupport
org.apache.struts2.validator.validators.FieldExpressionValidator
- All Implemented Interfaces:
- FieldValidator,- ShortCircuitableValidator,- Validator
 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>
 
 - 
Field SummaryFields inherited from class org.apache.struts2.validator.validators.FieldValidatorSupportcurrentValue, fieldName, typeFields inherited from class org.apache.struts2.validator.validators.ValidatorSupportdefaultMessage, EMPTY_STRING, messageKey, stack, textProviderFactory
- 
Constructor SummaryConstructors
- 
Method SummaryModifier and TypeMethodDescriptionvoidsetExpression(String expression) voidThe validation implementation must guarantee that setValidatorContext will be called with a non-null ValidatorContext before validate is called.Methods inherited from class org.apache.struts2.validator.validators.FieldValidatorSupportgetCurrentValue, getFieldName, getValidatorType, setFieldName, setValidatorTypeMethods inherited from class org.apache.struts2.validator.validators.ValidatorSupportaddActionError, addFieldError, getDefaultMessage, getFieldValue, getMessage, getMessageKey, getMessageParameters, getValidatorContext, isShortCircuit, parse, setDefaultMessage, setMessageKey, setMessageParameters, setShortCircuit, setTextProviderFactory, setValidatorContext, setValueStackMethods inherited from class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.apache.struts2.validator.ValidatorgetDefaultMessage, getMessage, getMessageKey, getMessageParameters, getValidatorContext, setDefaultMessage, setMessageKey, setMessageParameters, setValidatorContext, setValueStack
- 
Constructor Details- 
FieldExpressionValidatorpublic FieldExpressionValidator()
 
- 
- 
Method Details- 
setExpression
- 
getExpression
- 
validateDescription copied from interface:ValidatorThe 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).
 
 
-