Target (Java Platform SE 6)

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Java™ Platform
Standard Ed. 6

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SUMMARY: REQUIRED | OPTIONAL

DETAIL: ELEMENT

java.lang.annotation
Annotation Type Target

@Documented @Retention(value=RUNTIME) @Target(value=ANNOTATION_TYPE) public @interface Target

Indicates the kinds of program element to which an annotation type is applicable. If a Target meta-annotation is not present on an annotation type declaration, the declared type may be used on any program element. If such a meta-annotation is present, the compiler will enforce the specified usage restriction. For example, this meta-annotation indicates that the declared type is itself a meta-annotation type. It can only be used on annotation type declarations:

 @Target(ElementType.ANNOTATION_TYPE)
 public @interface MetaAnnotationType {
 ... 
 }

This meta-annotation indicates that the declared type is intended solely for use as a member type in complex annotation type declarations. It cannot be used to annotate anything directly:

 @Target({}) 
 public @interface MemberType {
 ...
 }

It is a compile-time error for a single ElementType constant to appear more than once in a Target annotation. For example, the following meta-annotation is illegal:

 @Target({ElementType.FIELD, ElementType.METHOD, ElementType.FIELD})
 public @interface Bogus {
 ...
 }

Required Element Summary
`ElementType[]`	`value`

Element Detail

value

public abstract ElementType[] value