java.lang.reflect

Interface AnnotatedElement

All Known Implementing Classes:

AbstractMethod, AccessibleObject, Class, Constructor, Field, Method, Package

public interface AnnotatedElement

This interface provides reflective access to annotation information.

Since:

1.5

Method Summary

Modifier and Type	Method and Description
<T extends Annotation> T	getAnnotation(Class<T> annotationType) Returns, for this element, the annotation with the specified type, or null if no annotation with the specified type is present (including inherited annotations).
Annotation[]	getAnnotations() Returns, for this element, an array containing all annotations (including inherited annotations).
Annotation[]	getDeclaredAnnotations() Returns, for this element, all annotations that are explicitly declared (not inherited).
boolean	isAnnotationPresent(Class<? extends Annotation> annotationType) Indicates whether or not this element has an annotation with the specified annotation type (including inherited annotations).

Method Detail

getAnnotation

<T extends Annotation> T getAnnotation(Class<T> annotationType)

Returns, for this element, the annotation with the specified type, or null if no annotation with the specified type is present (including inherited annotations).

Parameters:

annotationType - the type of the annotation to search for

Returns:

the annotation with the specified type or null

Throws:

NullPointerException - if annotationType is null

getAnnotations

Annotation[] getAnnotations()

Returns, for this element, an array containing all annotations (including inherited annotations). If there are no annotations present, this method returns a zero length array.

Returns:

an array of all annotations for this element

getDeclaredAnnotations

Annotation[] getDeclaredAnnotations()

Returns, for this element, all annotations that are explicitly declared (not inherited). If there are no declared annotations present, this method returns a zero length array.

Returns:

an array of annotations declared for this element

isAnnotationPresent

boolean isAnnotationPresent(Class<? extends Annotation> annotationType)

Indicates whether or not this element has an annotation with the specified annotation type (including inherited annotations).

Parameters:

annotationType - the type of the annotation to search for

Returns:

true if the annotation exists, false otherwise

Throws:

NullPointerException - if annotationType is null