Annotation Interface FieldExpressionValidator
 This validator uses an OGNL expression to perform its validator.
 The error message will be added to the field if the expression returns
 false when it is evaluated against the value stack.
 
 
 
 
 
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. | |
| messageParams | no | Additional params to be used to customize message - will be evaluated against the Value Stack | |
| fieldName | no | ||
| shortCircuit | no | false | If this validator should be used as shortCircuit. | 
| expression | yes | An OGNL expression that returns a boolean value. | 
Example code:
@FieldExpressionValidator(message = "Default message", key = "i18n.key", shortCircuit = true, expression = "an OGNL expression")
- Author:
- Rainer Hermanns
- 
Required Element SummaryRequired Elements
- 
Optional Element SummaryOptional ElementsModifier and TypeOptional ElementDescriptionString[]booleanIf this is activated, the validator will be used as short-circuit.
- 
Element Details- 
expressionString expression- Returns:
- An OGNL expression that returns a boolean value.
 
 
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- 
- 
messageString message- Returns:
- The default error message for this validator. NOTE: It is required to set a message, if you are not using the message key for 18n lookup!
 - Default:
- ""
 
- 
keyString key- Returns:
- The message key to lookup for i18n.
 - Default:
- ""
 
- 
messageParamsString[] messageParams- Returns:
- Additional params to be used to customize message - will be evaluated against the Value Stack
 - Default:
- {}
 
- 
fieldNameString fieldName- Returns:
- The optional fieldName for SIMPLE validator types.
 - Default:
- ""
 
- 
shortCircuitboolean shortCircuitIf this is activated, the validator will be used as short-circuit. Adds the short-circuit='true' attribute value if true.- Returns:
- true if validator will be used as short-circuit. Default is false.
 - Default:
- false
 
 
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