Class RequiredFieldValidator

All Implemented Interfaces:
FieldValidator, ShortCircuitableValidator, Validator

public class RequiredFieldValidator extends FieldValidatorSupport
RequiredFieldValidator checks if the specified field is not null.
  • fieldName - field name if plain-validator syntax is used, not needed if field-validator syntax is used
 
           <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>
 
 
Author:
rainerh
  • Constructor Details

    • RequiredFieldValidator

      public RequiredFieldValidator()
  • Method Details

    • 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).