com.opensymphony.xwork2.validator.validators
Class RequiredFieldValidator

java.lang.Object
  extended by com.opensymphony.xwork2.validator.validators.ValidatorSupport
      extended by com.opensymphony.xwork2.validator.validators.FieldValidatorSupport
          extended by com.opensymphony.xwork2.validator.validators.RequiredFieldValidator
All Implemented Interfaces:
FieldValidator, ShortCircuitableValidator, Validator

public class RequiredFieldValidator
extends FieldValidatorSupport

RequiredFieldValidator checks if the specified field is not null.

 
           <validators>
 
         <!-- Plain Validator Syntax -->
         <validator type="required">
             <param name="fieldName">username</param>
             <message>username must not be null</message>
         </validator>
 
 
         <!-- Field Validator Syntax -->
         <field name="username">
             <field-validator type="required">
                   <message>username must not be null</message>
             </field-validator>
         </field>
 
     </validators>
 
 

Version:
$Revision: 1063 $
Author:
rainerh

Field Summary
 
Fields inherited from class com.opensymphony.xwork2.validator.validators.ValidatorSupport
defaultMessage, log, messageKey
 
Constructor Summary
RequiredFieldValidator()
           
 
Method Summary
 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

RequiredFieldValidator

public RequiredFieldValidator()
Method Detail

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).


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