com.opensymphony.xwork2.validator.annotations
Annotation Type ExpressionValidator


@Retention(value=RUNTIME)
@Target(value=METHOD)
public @interface ExpressionValidator

This non-field level validator validates a supplied regular expression.

Annotation usage:

The annotation must be applied at method level.

Annotation parameters:

Parameter Required Default Notes
message yes   field error message
key no   i18n key from language specific properties file.
fieldName no    
shortCircuit no false If this validator should be used as shortCircuit.
type yes ValidatorType.FIELD Enum value from ValidatorType. Either FIELD or SIMPLE can be used here.
expression yes   An OGNL expression that returns a boolean value.

Example code:

 
 @ExpressionValidator(message = "Default message", key = "i18n.key", shortCircuit = true, expression = "an OGNL expression" )
 
 

Version:
$Id: ExpressionValidator.java 1187 2006-11-13 08:05:32Z mrdon $
Author:
Rainer Hermanns

Required Element Summary
 String expression
          The expressions to validate.
 String message
          The default error messages for this validator.
 
Optional Element Summary
 String key
          The message key to lookup for i18n.
 boolean shortCircuit
          If this is activated, the validator will be used as short-circuit.
 

Element Detail

expression

public abstract String expression
The expressions to validate. An OGNL expression that returns a boolean value.


message

public abstract String message
The default error messages for this validator.

key

public abstract String key
The message key to lookup for i18n.

Default:
""

shortCircuit

public abstract boolean shortCircuit
If this is activated, the validator will be used as short-circuit. Adds the short-circuit="true" attribute value if true.

Default:
false


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