Package org.exoplatform.commons.reflect

Class AnnotationIntrospector

java.lang.Object

org.exoplatform.commons.reflect.AnnotationIntrospector

public class AnnotationIntrospector
extends Object

Various utils for performing runtime introspection on annotations.

Version:

$Revision$

Author:

Julien Viet

Constructor Summary

Constructors

Constructor	Description
AnnotationIntrospector()

Method Summary

Modifier and Type	Method	Description
static <A extends Annotation> A	resolveClassAnnotations(Class<?> clazz, Class<A> classAnnotation)	Resolve an annotation of the specified class and its inheritance hierarchy.
static <A extends Annotation> Map<Method,A>	resolveMethodAnnotations(Class<?> clazz, Class<A> methodAnnotation)

Methods inherited from class java.lang.Object

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

Constructor Details

AnnotationIntrospector

public AnnotationIntrospector()

Method Details

resolveClassAnnotations

public static <A extends Annotation> A resolveClassAnnotations(Class<?> clazz,
 Class<A> classAnnotation)
                                                        throws IllegalArgumentException

Resolve an annotation of the specified class and its inheritance hierarchy. If no such annotation cannot be resolved then null is returned.

Type Parameters:

A - the annotation class

Parameters:

clazz - the examined class

classAnnotation - the annotation to lookup

Returns:

the annotation

Throws:

IllegalArgumentException - if any argument is null

resolveMethodAnnotations

public static <A extends Annotation> Map<Method,A> resolveMethodAnnotations(Class<?> clazz,
 Class<A> methodAnnotation)