Apache Struts 2 Documentation > Home > Guides > Core Developers Guide > Annotations > StringLengthFieldValidator Annotation |
This validator checks that a String field is of the right length. It assumes that the field is a String. If neither minLength nor maxLength is set, nothing will be done.
The annotation must be applied at method level.
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. |
trim | no | true | Boolean property. Determines whether the String is trimmed before performing the length check. |
minLength | no | Integer property. The minimum length the String must be. | |
maxLength | no | Integer property. The maximum length the String can be. |
If neither minLength nor maxLength is set, nothing will be done.
@StringLengthFieldValidator(message = "Default message", key = "i18n.key", shortCircuit = true, trim = true, minLength = "5", maxLength = "12")