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/*
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* Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.lang.annotation;
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/**
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* Indicates the kinds of program element to which an annotation type
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* is applicable. If a Target meta-annotation is not present on an
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* annotation type declaration, the declared type may be used on any
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* program element. If such a meta-annotation is present, the compiler
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* will enforce the specified usage restriction.
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*
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* For example, this meta-annotation indicates that the declared type is
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* itself a meta-annotation type. It can only be used on annotation type
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* declarations:
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* <pre>
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* @Target(ElementType.ANNOTATION_TYPE)
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* public @interface MetaAnnotationType {
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* ...
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* }
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* </pre>
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* This meta-annotation indicates that the declared type is intended solely
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* for use as a member type in complex annotation type declarations. It
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* cannot be used to annotate anything directly:
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* <pre>
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* @Target({})
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* public @interface MemberType {
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* ...
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* }
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* </pre>
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* It is a compile-time error for a single ElementType constant to
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* appear more than once in a Target annotation. For example, the
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* following meta-annotation is illegal:
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* <pre>
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* @Target({ElementType.FIELD, ElementType.METHOD, ElementType.FIELD})
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* public @interface Bogus {
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* ...
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* }
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* </pre>
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*/
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@Documented
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@Retention(RetentionPolicy.RUNTIME)
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@Target(ElementType.ANNOTATION_TYPE)
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public @interface Target {
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ElementType[] value();
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}
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