Annotation Interface StringLengthFieldValidator
 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.
 
 
 
 
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. | 
| 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. | |
| minLengthExpression | no | OGNL expression used to obtain the minimum length the String must be. | |
| maxLength | no | Integer property. The maximum length the String can be. | |
| maxLengthExpression | no | OGNL expression used to obtain the maximum length the String can be. | 
If neither minLength nor maxLength is set, nothing will be done.
Example code:
@StringLengthFieldValidator(message = "Default message", key = "i18n.key", shortCircuit = true, trim = true, minLength = "5", maxLength = "12")
- Author:
- Rainer Hermanns
- 
Optional Element SummaryOptional ElementsModifier and TypeOptional ElementDescriptionInteger property.String[]Integer property.booleanIf this is activated, the validator will be used as short-circuit.booleanBoolean property.
- 
Element Details- 
trimboolean trimBoolean property.- Returns:
- Determines whether the String is trimmed before performing the length check.
 - Default:
- true
 
- 
trimExpressionString trimExpression- Returns:
- Determines whether the String is trimmed before performing the length check but defined as an expression
 - Default:
- ""
 
- 
minLengthString minLengthInteger property.- Returns:
- The minimum length the String must be.
 - Default:
- ""
 
- 
minLengthExpressionString minLengthExpression- Returns:
- The minimum length the String must be defined as an expression
 - Default:
- ""
 
- 
maxLengthString maxLengthInteger property.- Returns:
- The maximum length the String can be.
 - Default:
- ""
 
- 
maxLengthExpressionString maxLengthExpression- Returns:
- The maximum length the String can be defined as an expression
 - Default:
- ""
 
- 
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
 
- 
typeValidatorType[] type- Returns:
- The validation type for this field/method.
 - Default:
- {FIELD}
 
 
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