cz.jirutka.validator.collection

Class CommonEachValidator

java.lang.Object

cz.jirutka.validator.collection.CommonEachValidator

All Implemented Interfaces:

javax.validation.ConstraintValidator<Annotation,Collection<?>>

public class CommonEachValidator
extends Object
implements javax.validation.ConstraintValidator<Annotation,Collection<?>>

Common validator for collection constraints that validates each element of the given collection.

Constructor Summary

Constructors

Constructor and Description
CommonEachValidator()

Method Summary

Modifier and Type	Method and Description
protected <T extends javax.validation.ConstraintValidator<?,?>> Map<Class,Class<? extends T>>	categorizeValidatorsByType(List<Class<? extends T>> validatorClasses)
protected <T extends Annotation> T	createConstraintAndCopyAttributes(Class<T> constraintType, Annotation source) Instantiates constraint of the specified type and copies values of all the common attributes from the given source constraint (of any type) to it.
protected javax.validation.metadata.ConstraintDescriptor	createConstraintDescriptor(Annotation constraint)
protected String	createInterpolatedMessage(javax.validation.metadata.ConstraintDescriptor descriptor, Object value) Reads and interpolates an error message for the given constraint and value.
protected Class<?>	determineTargetType(Class<? extends javax.validation.ConstraintValidator<?,?>> validatorClass)
protected javax.validation.ConstraintValidator	findAndInitializeValidator(Class<?> type)
protected javax.validation.ConstraintValidator	getAnyValidatorInstance() Returns initialized validator instance for any object type.
protected javax.validation.ConstraintValidator	getValidatorInstance(Class<?> type) Returns initialized validator instance for the specified object type.
void	initialize(Annotation eachAnnotation)
boolean	isValid(Collection<?> collection, javax.validation.ConstraintValidatorContext context)
protected boolean	isWrapperAnnotation(Class<? extends Annotation> annotationType) Whether the given annotation type contains the value attribute of the type that extends Annotation[].
void	setValidatorFactory(javax.validation.ValidatorFactory factory)
protected Annotation[]	unwrapConstraints(Annotation wrapper)

Methods inherited from class java.lang.Object

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

Constructor Detail

CommonEachValidator

public CommonEachValidator()

Method Detail

initialize

public void initialize(Annotation eachAnnotation)

Specified by:

initialize in interface javax.validation.ConstraintValidator<Annotation,Collection<?>>

isValid

public boolean isValid(Collection<?> collection,
                       javax.validation.ConstraintValidatorContext context)

Specified by:

isValid in interface javax.validation.ConstraintValidator<Annotation,Collection<?>>

setValidatorFactory

public void setValidatorFactory(javax.validation.ValidatorFactory factory)

isWrapperAnnotation

protected boolean isWrapperAnnotation(Class<? extends Annotation> annotationType)

Whether the given annotation type contains the value attribute of the type that extends Annotation[].

unwrapConstraints

protected Annotation[] unwrapConstraints(Annotation wrapper)

createConstraintDescriptor

protected javax.validation.metadata.ConstraintDescriptor createConstraintDescriptor(Annotation constraint)

categorizeValidatorsByType

protected <T extends javax.validation.ConstraintValidator<?,?>> Map<Class,Class<? extends T>> categorizeValidatorsByType(List<Class<? extends T>> validatorClasses)

determineTargetType

protected Class<?> determineTargetType(Class<? extends javax.validation.ConstraintValidator<?,?>> validatorClass)

getValidatorInstance

protected javax.validation.ConstraintValidator getValidatorInstance(Class<?> type)

Returns initialized validator instance for the specified object type. Instances are cached.

Parameters:

type - Type of the object to be validated.

getAnyValidatorInstance

protected javax.validation.ConstraintValidator getAnyValidatorInstance()

Returns initialized validator instance for any object type. This is used when the object to be validated is null so we can't determine it's type. Instances are cached.

findAndInitializeValidator

protected javax.validation.ConstraintValidator findAndInitializeValidator(Class<?> type)

createInterpolatedMessage

protected String createInterpolatedMessage(javax.validation.metadata.ConstraintDescriptor descriptor,
                                           Object value)

Reads and interpolates an error message for the given constraint and value.

Parameters:

descriptor - Descriptor of the constraint that the value violated.

value - The validated value.

Returns:

An interpolated message.

createConstraintAndCopyAttributes

protected <T extends Annotation> T createConstraintAndCopyAttributes(Class<T> constraintType,
                                                                     Annotation source)

Instantiates constraint of the specified type and copies values of all the common attributes from the given source constraint (of any type) to it.

If the source constraint's message is empty, then it will not copy it (so the default message of the target constraint will be preserved).

Parameters:

constraintType - Type of the constraint to create.

source - Any annotation to copy attribute values from.

Returns:

An instance of the specified constraint.