org.springframework.validation.beanvalidation
Class SpringValidatorAdapter

java.lang.Object
  org.springframework.validation.beanvalidation.SpringValidatorAdapter

All Implemented Interfaces:

javax.validation.Validator

Direct Known Subclasses:

CustomValidatorBean, LocalValidatorFactoryBean

public class SpringValidatorAdapter
extends Object
implements Validator, javax.validation.Validator

Adapter that takes a JSR-303 javax.validator.Validator and exposes it as a Spring Validator while also exposing the original JSR-303 Validator interface itself.

Can be used as a programmatic wrapper. Also serves as base class for CustomValidatorBean and LocalValidatorFactoryBean.

Since:

3.0

Author:

Juergen Hoeller

Constructor Summary

SpringValidatorAdapter(javax.validation.Validator targetValidator)
Create a new SpringValidatorAdapter for the given JSR-303 Validator.

Method Summary

protected Object[]	getArgumentsForConstraint(String objectName, String field, javax.validation.metadata.ConstraintDescriptor<?> descriptor) Return FieldError arguments for a validation error on the given field.
javax.validation.metadata.BeanDescriptor	getConstraintsForClass(Class<?> clazz)
boolean	supports(Class<?> clazz) Can this Validator validate instances of the supplied clazz?
<T> T	unwrap(Class<T> type)
void	validate(Object target, Errors errors) Validate the supplied target object, which must be of a Class for which the Validator.supports(Class) method typically has (or would) return true.
<T> Set<javax.validation.ConstraintViolation<T>>	validate(T object, Class<?>... groups)
<T> Set<javax.validation.ConstraintViolation<T>>	validateProperty(T object, String propertyName, Class<?>... groups)
<T> Set<javax.validation.ConstraintViolation<T>>	validateValue(Class<T> beanType, String propertyName, Object value, Class<?>... groups)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SpringValidatorAdapter

public SpringValidatorAdapter(javax.validation.Validator targetValidator)

Create a new SpringValidatorAdapter for the given JSR-303 Validator.

Parameters:

targetValidator - the JSR-303 Validator to wrap

Method Detail

supports

public boolean supports(Class<?> clazz)

Description copied from interface: Validator

Can this Validator validate instances of the supplied clazz?

This method is typically implemented like so:

return Foo.class.isAssignableFrom(clazz);

(Where Foo is the class (or superclass) of the actual object instance that is to be validated.)

Parameters:

clazz - the Class that this Validator is being asked if it can validate

Returns:

true if this Validator can indeed validate instances of the supplied clazz

validate

public void validate(Object target,
                     Errors errors)

Description copied from interface: Validator

Validate the supplied target object, which must be of a Class for which the Validator.supports(Class) method typically has (or would) return true.

The supplied errors instance can be used to report any resulting validation errors.

Parameters:

target - the object that is to be validated (can be null)

errors - contextual state about the validation process (never null)

See Also:

ValidationUtils

getArgumentsForConstraint

protected Object[] getArgumentsForConstraint(String objectName,
                                             String field,
                                             javax.validation.metadata.ConstraintDescriptor<?> descriptor)

Return FieldError arguments for a validation error on the given field. Invoked for each violated constraint.

The default implementation returns a single argument of type DefaultMessageSourceResolvable, with "objectName.field" and "field" as codes.

Parameters:

objectName - the name of the target object

field - the field that caused the binding error

descriptor - the JSR-303 constraint descriptor

Returns:

the Object array that represents the FieldError arguments

See Also:

DefaultMessageSourceResolvable.getArguments(), DefaultMessageSourceResolvable, DefaultBindingErrorProcessor.getArgumentsForBindError(java.lang.String, java.lang.String)

validate

public <T> Set<javax.validation.ConstraintViolation<T>> validate(T object,
                                                                 Class<?>... groups)

Specified by:

validate in interface javax.validation.Validator

validateProperty

public <T> Set<javax.validation.ConstraintViolation<T>> validateProperty(T object,
                                                                         String propertyName,
                                                                         Class<?>... groups)

Specified by:

validateProperty in interface javax.validation.Validator

validateValue

public <T> Set<javax.validation.ConstraintViolation<T>> validateValue(Class<T> beanType,
                                                                      String propertyName,
                                                                      Object value,
                                                                      Class<?>... groups)

Specified by:

validateValue in interface javax.validation.Validator

getConstraintsForClass

public javax.validation.metadata.BeanDescriptor getConstraintsForClass(Class<?> clazz)

Specified by:

getConstraintsForClass in interface javax.validation.Validator

unwrap

public <T> T unwrap(Class<T> type)

Specified by:

unwrap in interface javax.validation.Validator