A - the annotation type handled by an implementationT - the target type supported by an implementationpublic interface ConstraintValidator<A extends java.lang.annotation.Annotation,T>
A
for a given object type T.
Implementations must comply to the following restriction:
T must resolve to a non parameterized typeT must be unbounded
wildcard types
The annotation SupportedValidationTarget can be put on a
ConstraintValidator implementation to mark it as supporting
cross-parameter constraints. Check out SupportedValidationTarget
and Constraint for more information.
| Modifier and Type | Method and Description |
|---|---|
default void |
initialize(A constraintAnnotation)
Initializes the validator in preparation for
isValid(Object, ConstraintValidatorContext) calls. |
boolean |
isValid(T value,
ConstraintValidatorContext context)
Implements the validation logic.
|
default void initialize(A constraintAnnotation)
isValid(Object, ConstraintValidatorContext) calls.
The constraint annotation for a given constraint declaration
is passed.
This method is guaranteed to be called before any use of this instance for validation.
The default implementation is a no-op.
constraintAnnotation - annotation instance for a given constraint declarationboolean isValid(T value, ConstraintValidatorContext context)
value must not be altered.
This method can be accessed concurrently, thread-safety must be ensured by the implementation.
value - object to validatecontext - context in which the constraint is evaluatedfalse if value does not pass the constraint