com.opensymphony.xwork2.validator.validators
Class RequiredStringValidator

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.RequiredStringValidator
All Implemented Interfaces:
FieldValidator, ShortCircuitableValidator, Validator

public class RequiredStringValidator
extends FieldValidatorSupport

RequiredStringValidator checks that a String field is non-null and has a length > 0. (i.e. it isn't ""). The "trim" parameter determines whether it will trim the String before performing the length check. If unspecified, the String will be trimmed.

 
     <validators>
         <!-- Plain-Validator Syntax -->
         <validator type="requiredstring">
             <param name="fieldName">username</param>
             <param name="trim">true</param>
             <message>username is required</message>
         </validator>
         
         <!-- Field-Validator Syntax -->
         <field name="username">
                  <field-validator type="requiredstring">
                 <param name="trim">true</param>
                 <message>username is required</message>
            </field-validator>
         </field>
     </validators>
 
 

Version:
$Date: 2006-07-10 02:30:29 +0200 (Mo, 10 Jul 2006) $ $Id: RequiredStringValidator.java 1063 2006-07-10 00:30:29Z mrdon $
Author:
rainerh

Field Summary
private  boolean doTrim
           
 
Fields inherited from class com.opensymphony.xwork2.validator.validators.ValidatorSupport
defaultMessage, log, messageKey
 
Constructor Summary
RequiredStringValidator()
           
 
Method Summary
 boolean getTrim()
           
 void setTrim(boolean trim)
           
 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
 

Field Detail

doTrim

private boolean doTrim
Constructor Detail

RequiredStringValidator

public RequiredStringValidator()
Method Detail

setTrim

public void setTrim(boolean trim)

getTrim

public boolean getTrim()

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).


Copyright © 2000-2009 Apache Software Foundation. All Rights Reserved.