cz.jirutka.validator.collection.internal

Class AnnotationUtils

java.lang.Object

cz.jirutka.validator.collection.internal.AnnotationUtils

public abstract class AnnotationUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
AnnotationUtils()

Method Summary

Modifier and Type	Method and Description
static <T extends Annotation> T	createAnnotation(Class<T> annotationType, Map<String,Object> attributes) Creates instance (proxy) of the specified annotation with the given attributes.
static Class<?>	getAttributeType(Class<? extends Annotation> annotationType, String attributeName) Returns type of the specified attribute in the annotation type.
static boolean	hasAttribute(Class<? extends Annotation> annotationType, String attributeName) Whether the annotation type contains attribute of the specified name.
static Map<String,Object>	readAllAttributes(Annotation annotation) Returns annotation's attributes (name and value) as map.
static <T> T	readAttribute(Annotation annotation, String name, Class<T> requiredType)

Methods inherited from class java.lang.Object

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

Constructor Detail

AnnotationUtils

public AnnotationUtils()

Method Detail

readAttribute

public static <T> T readAttribute(Annotation annotation,
                                  String name,
                                  Class<T> requiredType)
                           throws IllegalArgumentException,
                                  IllegalStateException

Throws:

IllegalArgumentException

IllegalStateException

hasAttribute

public static boolean hasAttribute(Class<? extends Annotation> annotationType,
                                   String attributeName)

Whether the annotation type contains attribute of the specified name.

getAttributeType

public static Class<?> getAttributeType(Class<? extends Annotation> annotationType,
                                        String attributeName)

Returns type of the specified attribute in the annotation type.

readAllAttributes

public static Map<String,Object> readAllAttributes(Annotation annotation)

Returns annotation's attributes (name and value) as map.

createAnnotation

public static <T extends Annotation> T createAnnotation(Class<T> annotationType,
                                                        Map<String,Object> attributes)

Creates instance (proxy) of the specified annotation with the given attributes.

Type Parameters:

T - The type of the annotation.

Parameters:

annotationType - The annotation's class.

attributes - A map with attribute values for the annotation to be created.

Returns:

An instance of the annotation.

Throws:

IllegalArgumentException - if some attribute has wrong type or a required attribute is missing.