src/share/jaxws_classes/javax/xml/bind/annotation/XmlElementWrapper.java

Tue, 09 Apr 2013 14:51:13 +0100

author
alanb
date
Tue, 09 Apr 2013 14:51:13 +0100
changeset 368
0989ad8c0860
parent 286
f50545b5e2f1
child 397
b99d7e355d4b
permissions
-rw-r--r--

8010393: Update JAX-WS RI to 2.2.9-b12941
Reviewed-by: alanb, erikj
Contributed-by: miroslav.kos@oracle.com, martin.grebac@oracle.com

ohair@286 1 /*
ohair@286 2 * Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved.
ohair@286 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ohair@286 4 *
ohair@286 5 * This code is free software; you can redistribute it and/or modify it
ohair@286 6 * under the terms of the GNU General Public License version 2 only, as
ohair@286 7 * published by the Free Software Foundation. Oracle designates this
ohair@286 8 * particular file as subject to the "Classpath" exception as provided
ohair@286 9 * by Oracle in the LICENSE file that accompanied this code.
ohair@286 10 *
ohair@286 11 * This code is distributed in the hope that it will be useful, but WITHOUT
ohair@286 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ohair@286 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ohair@286 14 * version 2 for more details (a copy is included in the LICENSE file that
ohair@286 15 * accompanied this code).
ohair@286 16 *
ohair@286 17 * You should have received a copy of the GNU General Public License version
ohair@286 18 * 2 along with this work; if not, write to the Free Software Foundation,
ohair@286 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ohair@286 20 *
ohair@286 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@286 22 * or visit www.oracle.com if you need additional information or have any
ohair@286 23 * questions.
ohair@286 24 */
ohair@286 25
ohair@286 26 package javax.xml.bind.annotation;
ohair@286 27
ohair@286 28 import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
ohair@286 29 import static java.lang.annotation.RetentionPolicy.RUNTIME;
ohair@286 30 import static java.lang.annotation.ElementType.FIELD;
ohair@286 31 import static java.lang.annotation.ElementType.METHOD;
ohair@286 32 import java.lang.annotation.Retention;
ohair@286 33 import java.lang.annotation.Target;
ohair@286 34
ohair@286 35 /**
ohair@286 36 * Generates a wrapper element around XML representation.
ohair@286 37 *
ohair@286 38 * This is primarily intended to be used to produce a wrapper
ohair@286 39 * XML element around collections. The annotation therefore supports
ohair@286 40 * two forms of serialization shown below.
ohair@286 41 *
ohair@286 42 * <pre>
ohair@286 43 * //Example: code fragment
ohair@286 44 * int[] names;
ohair@286 45 *
ohair@286 46 * // XML Serialization Form 1 (Unwrapped collection)
ohair@286 47 * &lt;names> ... &lt;/names>
ohair@286 48 * &lt;names> ... &lt;/names>
ohair@286 49 *
ohair@286 50 * // XML Serialization Form 2 ( Wrapped collection )
ohair@286 51 * &lt;wrapperElement>
ohair@286 52 * &lt;names> value-of-item &lt;/names>
ohair@286 53 * &lt;names> value-of-item &lt;/names>
ohair@286 54 * ....
ohair@286 55 * &lt;/wrapperElement>
ohair@286 56 * </pre>
ohair@286 57 *
ohair@286 58 * <p> The two serialized XML forms allow a null collection to be
ohair@286 59 * represented either by absence or presence of an element with a
ohair@286 60 * nillable attribute.
ohair@286 61 *
ohair@286 62 * <p> <b>Usage</b> </p>
ohair@286 63 * <p>
ohair@286 64 * The <tt>@XmlElementWrapper</tt> annotation can be used with the
ohair@286 65 * following program elements:
ohair@286 66 * <ul>
ohair@286 67 * <li> JavaBean property </li>
ohair@286 68 * <li> non static, non transient field </li>
ohair@286 69 * </ul>
ohair@286 70 *
ohair@286 71 * <p>The usage is subject to the following constraints:
ohair@286 72 * <ul>
ohair@286 73 * <li> The property must be a collection property </li>
ohair@286 74 * <li> This annotation can be used with the following annotations:
ohair@286 75 * {@link XmlElement},
ohair@286 76 * {@link XmlElements},
ohair@286 77 * {@link XmlElementRef},
ohair@286 78 * {@link XmlElementRefs},
ohair@286 79 * {@link XmlJavaTypeAdapter}.</li>
ohair@286 80 * </ul>
ohair@286 81 *
ohair@286 82 * <p>See "Package Specification" in javax.xml.bind.package javadoc for
ohair@286 83 * additional common information.</p>
ohair@286 84 *
ohair@286 85 * @author <ul><li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li><li>Sekhar Vajjhala, Sun Microsystems, Inc.</li></ul>
ohair@286 86 * @see XmlElement
ohair@286 87 * @see XmlElements
ohair@286 88 * @see XmlElementRef
ohair@286 89 * @see XmlElementRefs
ohair@286 90 * @since JAXB2.0
ohair@286 91 *
ohair@286 92 */
ohair@286 93
ohair@286 94 @Retention(RUNTIME) @Target({FIELD, METHOD})
ohair@286 95 public @interface XmlElementWrapper {
ohair@286 96 /**
ohair@286 97 * Name of the XML wrapper element. By default, the XML wrapper
ohair@286 98 * element name is derived from the JavaBean property name.
ohair@286 99 */
ohair@286 100 String name() default "##default";
ohair@286 101
ohair@286 102 /**
ohair@286 103 * XML target namespace of the XML wrapper element.
ohair@286 104 * <p>
ohair@286 105 * If the value is "##default", then the namespace is determined
ohair@286 106 * as follows:
ohair@286 107 * <ol>
ohair@286 108 * <li>
ohair@286 109 * If the enclosing package has {@link XmlSchema} annotation,
ohair@286 110 * and its {@link XmlSchema#elementFormDefault() elementFormDefault}
ohair@286 111 * is {@link XmlNsForm#QUALIFIED QUALIFIED}, then the namespace of
ohair@286 112 * the enclosing class.
ohair@286 113 *
ohair@286 114 * <li>
ohair@286 115 * Otherwise "" (which produces unqualified element in the default
ohair@286 116 * namespace.
ohair@286 117 * </ol>
ohair@286 118 */
ohair@286 119 String namespace() default "##default";
ohair@286 120
ohair@286 121 /**
ohair@286 122 * If true, the absence of the collection is represented by
ohair@286 123 * using <tt>xsi:nil='true'</tt>. Otherwise, it is represented by
ohair@286 124 * the absence of the element.
ohair@286 125 */
ohair@286 126 boolean nillable() default false;
ohair@286 127
ohair@286 128 /**
ohair@286 129 * Customize the wrapper element declaration to be required.
ohair@286 130 *
ohair@286 131 * <p>
ohair@286 132 * If required() is true, then the corresponding generated
ohair@286 133 * XML schema element declaration will have <tt>minOccurs="1"</tt>,
ohair@286 134 * to indicate that the wrapper element is always expected.
ohair@286 135 *
ohair@286 136 * <p>
ohair@286 137 * Note that this only affects the schema generation, and
ohair@286 138 * not the unmarshalling or marshalling capability. This is
ohair@286 139 * simply a mechanism to let users express their application constraints
ohair@286 140 * better.
ohair@286 141 *
ohair@286 142 * @since JAXB 2.1
ohair@286 143 */
ohair@286 144 boolean required() default false;
ohair@286 145 }

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