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

Thu, 31 Aug 2017 15:18:52 +0800

author
aoqi
date
Thu, 31 Aug 2017 15:18:52 +0800
changeset 637
9c07ef4934dd
parent 397
b99d7e355d4b
parent 0
373ffda63c9a
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 package javax.xml.bind.annotation;
aoqi@0 27
aoqi@0 28 import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
aoqi@0 29 import static java.lang.annotation.RetentionPolicy.RUNTIME;
aoqi@0 30 import static java.lang.annotation.ElementType.FIELD;
aoqi@0 31 import static java.lang.annotation.ElementType.METHOD;
aoqi@0 32 import java.lang.annotation.Retention;
aoqi@0 33 import java.lang.annotation.Target;
aoqi@0 34
aoqi@0 35 /**
aoqi@0 36 * Generates a wrapper element around XML representation.
aoqi@0 37 *
aoqi@0 38 * This is primarily intended to be used to produce a wrapper
aoqi@0 39 * XML element around collections. The annotation therefore supports
aoqi@0 40 * two forms of serialization shown below.
aoqi@0 41 *
aoqi@0 42 * <pre>
aoqi@0 43 * //Example: code fragment
aoqi@0 44 * int[] names;
aoqi@0 45 *
aoqi@0 46 * // XML Serialization Form 1 (Unwrapped collection)
aoqi@0 47 * &lt;names> ... &lt;/names>
aoqi@0 48 * &lt;names> ... &lt;/names>
aoqi@0 49 *
aoqi@0 50 * // XML Serialization Form 2 ( Wrapped collection )
aoqi@0 51 * &lt;wrapperElement>
aoqi@0 52 * &lt;names> value-of-item &lt;/names>
aoqi@0 53 * &lt;names> value-of-item &lt;/names>
aoqi@0 54 * ....
aoqi@0 55 * &lt;/wrapperElement>
aoqi@0 56 * </pre>
aoqi@0 57 *
aoqi@0 58 * <p> The two serialized XML forms allow a null collection to be
aoqi@0 59 * represented either by absence or presence of an element with a
aoqi@0 60 * nillable attribute.
aoqi@0 61 *
aoqi@0 62 * <p> <b>Usage</b> </p>
aoqi@0 63 * <p>
aoqi@0 64 * The <tt>@XmlElementWrapper</tt> annotation can be used with the
aoqi@0 65 * following program elements:
aoqi@0 66 * <ul>
aoqi@0 67 * <li> JavaBean property </li>
aoqi@0 68 * <li> non static, non transient field </li>
aoqi@0 69 * </ul>
aoqi@0 70 *
aoqi@0 71 * <p>The usage is subject to the following constraints:
aoqi@0 72 * <ul>
aoqi@0 73 * <li> The property must be a collection property </li>
aoqi@0 74 * <li> This annotation can be used with the following annotations:
aoqi@0 75 * {@link XmlElement},
aoqi@0 76 * {@link XmlElements},
aoqi@0 77 * {@link XmlElementRef},
aoqi@0 78 * {@link XmlElementRefs},
aoqi@0 79 * {@link XmlJavaTypeAdapter}.</li>
aoqi@0 80 * </ul>
aoqi@0 81 *
aoqi@0 82 * <p>See "Package Specification" in javax.xml.bind.package javadoc for
aoqi@0 83 * additional common information.</p>
aoqi@0 84 *
aoqi@0 85 * @author <ul><li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li><li>Sekhar Vajjhala, Sun Microsystems, Inc.</li></ul>
aoqi@0 86 * @see XmlElement
aoqi@0 87 * @see XmlElements
aoqi@0 88 * @see XmlElementRef
aoqi@0 89 * @see XmlElementRefs
aoqi@0 90 * @since JAXB2.0
aoqi@0 91 *
aoqi@0 92 */
aoqi@0 93
aoqi@0 94 @Retention(RUNTIME) @Target({FIELD, METHOD})
aoqi@0 95 public @interface XmlElementWrapper {
aoqi@0 96 /**
aoqi@0 97 * Name of the XML wrapper element. By default, the XML wrapper
aoqi@0 98 * element name is derived from the JavaBean property name.
aoqi@0 99 */
aoqi@0 100 String name() default "##default";
aoqi@0 101
aoqi@0 102 /**
aoqi@0 103 * XML target namespace of the XML wrapper element.
aoqi@0 104 * <p>
aoqi@0 105 * If the value is "##default", then the namespace is determined
aoqi@0 106 * as follows:
aoqi@0 107 * <ol>
aoqi@0 108 * <li>
aoqi@0 109 * If the enclosing package has {@link XmlSchema} annotation,
aoqi@0 110 * and its {@link XmlSchema#elementFormDefault() elementFormDefault}
aoqi@0 111 * is {@link XmlNsForm#QUALIFIED QUALIFIED}, then the namespace of
aoqi@0 112 * the enclosing class.
aoqi@0 113 *
aoqi@0 114 * <li>
aoqi@0 115 * Otherwise "" (which produces unqualified element in the default
aoqi@0 116 * namespace.
aoqi@0 117 * </ol>
aoqi@0 118 */
aoqi@0 119 String namespace() default "##default";
aoqi@0 120
aoqi@0 121 /**
aoqi@0 122 * If true, the absence of the collection is represented by
aoqi@0 123 * using <tt>xsi:nil='true'</tt>. Otherwise, it is represented by
aoqi@0 124 * the absence of the element.
aoqi@0 125 */
aoqi@0 126 boolean nillable() default false;
aoqi@0 127
aoqi@0 128 /**
aoqi@0 129 * Customize the wrapper element declaration to be required.
aoqi@0 130 *
aoqi@0 131 * <p>
aoqi@0 132 * If required() is true, then the corresponding generated
aoqi@0 133 * XML schema element declaration will have <tt>minOccurs="1"</tt>,
aoqi@0 134 * to indicate that the wrapper element is always expected.
aoqi@0 135 *
aoqi@0 136 * <p>
aoqi@0 137 * Note that this only affects the schema generation, and
aoqi@0 138 * not the unmarshalling or marshalling capability. This is
aoqi@0 139 * simply a mechanism to let users express their application constraints
aoqi@0 140 * better.
aoqi@0 141 *
aoqi@0 142 * @since JAXB 2.1
aoqi@0 143 */
aoqi@0 144 boolean required() default false;
aoqi@0 145 }

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