Apache Struts 2 Documentation
ExpressionValidator Annotation
ExpressionValidator Annotation
This non-field level validator validates a supplied regular expression.
Usage
The annotation must be applied at method level.
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. |
Examples
@ExpressionValidator(message = "Default message", key = "i18n.key", shortCircuit = true, expression = "an OGNL expression" )