src/share/jaxws_classes/javax/xml/bind/annotation/XmlRootElement.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) 2004, 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 java.lang.annotation.Retention;
ohair@286 29 import java.lang.annotation.Target;
ohair@286 30
ohair@286 31 import static java.lang.annotation.RetentionPolicy.RUNTIME;
ohair@286 32 import static java.lang.annotation.ElementType.TYPE;
ohair@286 33
ohair@286 34 /**
ohair@286 35 * Maps a class or an enum type to an XML element.
ohair@286 36 *
ohair@286 37 * <p> <b>Usage</b> </p>
ohair@286 38 * <p>
ohair@286 39 * The &#64;XmlRootElement annotation can be used with the following program
ohair@286 40 * elements:
ohair@286 41 * <ul>
ohair@286 42 * <li> a top level class </li>
ohair@286 43 * <li> an enum type </li>
ohair@286 44 * </ul>
ohair@286 45 *
ohair@286 46 * <p>See "Package Specification" in javax.xml.bind.package javadoc for
ohair@286 47 * additional common information.</p>
ohair@286 48 *
ohair@286 49 * <p>
ohair@286 50 * When a top level class or an enum type is annotated with the
ohair@286 51 * &#64;XmlRootElement annotation, then its value is represented
ohair@286 52 * as XML element in an XML document.
ohair@286 53 *
ohair@286 54 * <p> This annotation can be used with the following annotations:
ohair@286 55 * {@link XmlType}, {@link XmlEnum}, {@link XmlAccessorType},
ohair@286 56 * {@link XmlAccessorOrder}.
ohair@286 57 * <p>
ohair@286 58
ohair@286 59 * <p>
ohair@286 60 * <b>Example 1: </b> Associate an element with XML Schema type
ohair@286 61 * <pre>
ohair@286 62 * // Example: Code fragment
ohair@286 63 * &#64;XmlRootElement
ohair@286 64 * class Point {
ohair@286 65 * int x;
ohair@286 66 * int y;
ohair@286 67 * Point(int _x,int _y) {x=_x;y=_y;}
ohair@286 68 * }
ohair@286 69 * </pre>
ohair@286 70 *
ohair@286 71 * <pre>
ohair@286 72 * //Example: Code fragment corresponding to XML output
ohair@286 73 * marshal( new Point(3,5), System.out);
ohair@286 74 * </pre>
ohair@286 75 *
ohair@286 76 * <pre>
ohair@286 77 * &lt;!-- Example: XML output -->
ohair@286 78 * &lt;point>
ohair@286 79 * &lt;x> 3 </x>
ohair@286 80 * &lt;y> 5 </y>
ohair@286 81 * &lt;/point>
ohair@286 82 * </pre>
ohair@286 83 *
ohair@286 84 * The annotation causes an global element declaration to be produced
ohair@286 85 * in the schema. The global element declaration is associated with
ohair@286 86 * the XML schema type to which the class is mapped.
ohair@286 87 *
ohair@286 88 * <pre>
ohair@286 89 * &lt;!-- Example: XML schema definition -->
ohair@286 90 * &lt;xs:element name="point" type="point"/>
ohair@286 91 * &lt;xs:complexType name="point">
ohair@286 92 * &lt;xs:sequence>
ohair@286 93 * &lt;xs:element name="x" type="xs:int"/>
ohair@286 94 * &lt;xs:element name="y" type="xs:int"/>
ohair@286 95 * &lt;/xs:sequence>
ohair@286 96 * &lt;/xs:complexType>
ohair@286 97 * </pre>
ohair@286 98 *
ohair@286 99 * <p>
ohair@286 100 *
ohair@286 101 * <b>Example 2: Orthogonality to type inheritance </b>
ohair@286 102 *
ohair@286 103 * <p>
ohair@286 104 * An element declaration annotated on a type is not inherited by its
ohair@286 105 * derived types. The following example shows this.
ohair@286 106 * <pre>
ohair@286 107 * // Example: Code fragment
ohair@286 108 * &#64;XmlRootElement
ohair@286 109 * class Point3D extends Point {
ohair@286 110 * int z;
ohair@286 111 * Point3D(int _x,int _y,int _z) {super(_x,_y);z=_z;}
ohair@286 112 * }
ohair@286 113 *
ohair@286 114 * //Example: Code fragment corresponding to XML output *
ohair@286 115 * marshal( new Point3D(3,5,0), System.out );
ohair@286 116 *
ohair@286 117 * &lt;!-- Example: XML output -->
ohair@286 118 * &lt;!-- The element name is point3D not point -->
ohair@286 119 * &lt;point3D>
ohair@286 120 * &lt;x>3&lt;/x>
ohair@286 121 * &lt;y>5&lt;/y>
ohair@286 122 * &lt;z>0&lt;/z>
ohair@286 123 * &lt;/point3D>
ohair@286 124 *
ohair@286 125 * &lt;!-- Example: XML schema definition -->
ohair@286 126 * &lt;xs:element name="point3D" type="point3D"/>
ohair@286 127 * &lt;xs:complexType name="point3D">
ohair@286 128 * &lt;xs:complexContent>
ohair@286 129 * &lt;xs:extension base="point">
ohair@286 130 * &lt;xs:sequence>
ohair@286 131 * &lt;xs:element name="z" type="xs:int"/>
ohair@286 132 * &lt;/xs:sequence>
ohair@286 133 * &lt;/xs:extension>
ohair@286 134 * &lt;/xs:complexContent>
ohair@286 135 * &lt;/xs:complexType>
ohair@286 136 * </pre>
ohair@286 137 *
ohair@286 138 * <b>Example 3: </b> Associate a global element with XML Schema type
ohair@286 139 * to which the class is mapped.
ohair@286 140 * <pre>
ohair@286 141 * //Example: Code fragment
ohair@286 142 * &#64;XmlRootElement(name="PriceElement")
ohair@286 143 * public class USPrice {
ohair@286 144 * &#64;XmlElement
ohair@286 145 * public java.math.BigDecimal price;
ohair@286 146 * }
ohair@286 147 *
ohair@286 148 * &lt;!-- Example: XML schema definition -->
ohair@286 149 * &lt;xs:element name="PriceElement" type="USPrice"/>
ohair@286 150 * &lt;xs:complexType name="USPrice">
ohair@286 151 * &lt;xs:sequence>
ohair@286 152 * &lt;xs:element name="price" type="xs:decimal"/>
ohair@286 153 * &lt;/sequence>
ohair@286 154 * &lt;/xs:complexType>
ohair@286 155 * </pre>
ohair@286 156 *
ohair@286 157 * @author Sekhar Vajjhala, Sun Microsystems, Inc.
ohair@286 158 * @since JAXB2.0
ohair@286 159 */
ohair@286 160 @Retention(RUNTIME)
ohair@286 161 @Target({TYPE})
ohair@286 162 public @interface XmlRootElement {
ohair@286 163 /**
ohair@286 164 * namespace name of the XML element.
ohair@286 165 * <p>
ohair@286 166 * If the value is "##default", then the XML namespace name is derived
ohair@286 167 * from the package of the class ( {@link XmlSchema} ). If the
ohair@286 168 * package is unnamed, then the XML namespace is the default empty
ohair@286 169 * namespace.
ohair@286 170 */
ohair@286 171 String namespace() default "##default";
ohair@286 172
ohair@286 173 /**
ohair@286 174 * local name of the XML element.
ohair@286 175 * <p>
ohair@286 176 * If the value is "##default", then the name is derived from the
ohair@286 177 * class name.
ohair@286 178 *
ohair@286 179 */
ohair@286 180 String name() default "##default";
ohair@286 181
ohair@286 182 }

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