01 /*
02 * Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved.
03 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04 *
05 * This code is free software; you can redistribute it and/or modify it
06 * under the terms of the GNU General Public License version 2 only, as
07 * published by the Free Software Foundation. Sun designates this
08 * particular file as subject to the "Classpath" exception as provided
09 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package java.lang.annotation;
27
28 /**
29 * Annotation retention policy. The constants of this enumerated type
30 * describe the various policies for retaining annotations. They are used
31 * in conjunction with the {@link Retention} meta-annotation type to specify
32 * how long annotations are to be retained.
33 *
34 * @author Joshua Bloch
35 * @since 1.5
36 */
37 public enum RetentionPolicy {
38 /**
39 * Annotations are to be discarded by the compiler.
40 */
41 SOURCE,
42
43 /**
44 * Annotations are to be recorded in the class file by the compiler
45 * but need not be retained by the VM at run time. This is the default
46 * behavior.
47 */
48 CLASS,
49
50 /**
51 * Annotations are to be recorded in the class file by the compiler and
52 * retained by the VM at run time, so they may be read reflectively.
53 *
54 * @see java.lang.reflect.AnnotatedElement
55 */
56 RUNTIME
57 }
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