01 /*
02 * Copyright 2005-2006 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 javax.xml.bind.annotation;
27
28 import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
29 import java.lang.annotation.Retention;
30 import java.lang.annotation.Target;
31 import static java.lang.annotation.ElementType.FIELD;
32 import static java.lang.annotation.ElementType.METHOD;
33 import static java.lang.annotation.RetentionPolicy.RUNTIME;
34
35 /**
36 * Marks a property that refers to classes with {@link XmlElement}
37 * or JAXBElement.
38 *
39 * <p>
40 * Compared to an element property (property with {@link XmlElement}
41 * annotation), a reference property has a different substitution semantics.
42 * When a sub-class is assigned to a property, an element property produces
43 * the same tag name with @xsi:type, whereas a reference property produces
44 * a different tag name (the tag name that's on the the sub-class.)
45 *
46 * <p> This annotation can be used with the following annotations:
47 * {@link XmlJavaTypeAdapter}, {@link XmlElementWrapper}.
48 *
49 * @author <ul><li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li><li>Sekhar Vajjhala, Sun Microsystems, Inc.</li></ul>
50 *
51 * @see XmlElementWrapper
52 * @see XmlElementRef
53 * @since JAXB2.0
54 */
55 @Retention(RUNTIME)
56 @Target({FIELD,METHOD})
57 public @interface XmlElementRefs {
58 XmlElementRef[] value();
59 }
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