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
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Required Element Summary
Required Elements -
Optional Element Summary
Optional ElementsModifier and TypeOptional ElementDescriptionString[]
boolean
If this is activated, the validator will be used as short-circuit.
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Element Details
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expression
String expression- Returns:
- The expressions to validate. An OGNL expression that returns a boolean value.
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message
String 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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key
String key- Returns:
- The message key to lookup for i18n.
- Default:
- ""
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messageParams
String[] messageParams- Returns:
- Additional params to be used to customize message - will be evaluated against the Value Stack
- Default:
- {}
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shortCircuit
boolean 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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