Annotation 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. | |
| messageParams | no | Additional params to be used to customize message - will be evaluated against the Value Stack | |
| shortCircuit | no | false | If this validator should be used as shortCircuit. | 
| 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" )
- Author:
- Rainer Hermanns
- 
Required Element SummaryRequired Elements
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Optional Element SummaryOptional ElementsModifier and TypeOptional ElementDescriptionString[]booleanIf this is activated, the validator will be used as short-circuit.
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Element Details- 
expressionString expression- Returns:
- The expressions to validate. 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:
- ""
 
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keyString key- Returns:
- The message key to lookup for i18n.
 - Default:
- ""
 
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messageParamsString[] messageParams- Returns:
- Additional params to be used to customize message - will be evaluated against the Value Stack
 - Default:
- {}
 
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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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