src/share/jaxws_classes/javax/xml/bind/annotation/XmlElement.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 javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
ohair@286 29 import java.lang.annotation.Retention;
ohair@286 30 import java.lang.annotation.Target;
ohair@286 31
ohair@286 32 import static java.lang.annotation.ElementType.*;
ohair@286 33 import static java.lang.annotation.ElementType.PARAMETER;
ohair@286 34 import static java.lang.annotation.RetentionPolicy.*;
ohair@286 35
ohair@286 36 /**
ohair@286 37 * Maps a JavaBean property to a XML element derived from property name.
ohair@286 38 *
ohair@286 39 * <p> <b>Usage</b> </p>
ohair@286 40 * <p>
ohair@286 41 * <tt>@XmlElement</tt> annotation can be used with the following program
ohair@286 42 * elements:
ohair@286 43 * <ul>
ohair@286 44 * <li> a JavaBean property </li>
ohair@286 45 * <li> non static, non transient field </li>
ohair@286 46 * <li> within {@link XmlElements}
ohair@286 47 * <p>
ohair@286 48 *
ohair@286 49 * </ul>
ohair@286 50 *
ohair@286 51 * The usage is subject to the following constraints:
ohair@286 52 * <ul>
ohair@286 53 * <li> This annotation can be used with following annotations:
ohair@286 54 * {@link XmlID},
ohair@286 55 * {@link XmlIDREF},
ohair@286 56 * {@link XmlList},
ohair@286 57 * {@link XmlSchemaType},
ohair@286 58 * {@link XmlValue},
ohair@286 59 * {@link XmlAttachmentRef},
ohair@286 60 * {@link XmlMimeType},
ohair@286 61 * {@link XmlInlineBinaryData},
ohair@286 62 * {@link XmlElementWrapper},
ohair@286 63 * {@link XmlJavaTypeAdapter}</li>
ohair@286 64 * <li> if the type of JavaBean property is a collection type of
ohair@286 65 * array, an indexed property, or a parameterized list, and
ohair@286 66 * this annotation is used with {@link XmlElements} then,
ohair@286 67 * <tt>@XmlElement.type()</tt> must be DEFAULT.class since the
ohair@286 68 * collection item type is already known. </li>
ohair@286 69 * </ul>
ohair@286 70 *
ohair@286 71 * <p>
ohair@286 72 * A JavaBean property, when annotated with @XmlElement annotation
ohair@286 73 * is mapped to a local element in the XML Schema complex type to
ohair@286 74 * which the containing class is mapped.
ohair@286 75 *
ohair@286 76 * <p>
ohair@286 77 * <b>Example 1: </b> Map a public non static non final field to local
ohair@286 78 * element
ohair@286 79 * <pre>
ohair@286 80 * //Example: Code fragment
ohair@286 81 * public class USPrice {
ohair@286 82 * &#64;XmlElement(name="itemprice")
ohair@286 83 * public java.math.BigDecimal price;
ohair@286 84 * }
ohair@286 85 *
ohair@286 86 * &lt;!-- Example: Local XML Schema element -->
ohair@286 87 * &lt;xs:complexType name="USPrice"/>
ohair@286 88 * &lt;xs:sequence>
ohair@286 89 * &lt;xs:element name="itemprice" type="xs:decimal" minOccurs="0"/>
ohair@286 90 * &lt;/sequence>
ohair@286 91 * &lt;/xs:complexType>
ohair@286 92 * </pre>
ohair@286 93 * <p>
ohair@286 94 *
ohair@286 95 * <b> Example 2: </b> Map a field to a nillable element.
ohair@286 96 * <pre>
ohair@286 97 *
ohair@286 98 * //Example: Code fragment
ohair@286 99 * public class USPrice {
ohair@286 100 * &#64;XmlElement(nillable=true)
ohair@286 101 * public java.math.BigDecimal price;
ohair@286 102 * }
ohair@286 103 *
ohair@286 104 * &lt;!-- Example: Local XML Schema element -->
ohair@286 105 * &lt;xs:complexType name="USPrice">
ohair@286 106 * &lt;xs:sequence>
ohair@286 107 * &lt;xs:element name="price" type="xs:decimal" nillable="true" minOccurs="0"/>
ohair@286 108 * &lt;/sequence>
ohair@286 109 * &lt;/xs:complexType>
ohair@286 110 * </pre>
ohair@286 111 * <p>
ohair@286 112 * <b> Example 3: </b> Map a field to a nillable, required element.
ohair@286 113 * <pre>
ohair@286 114 *
ohair@286 115 * //Example: Code fragment
ohair@286 116 * public class USPrice {
ohair@286 117 * &#64;XmlElement(nillable=true, required=true)
ohair@286 118 * public java.math.BigDecimal price;
ohair@286 119 * }
ohair@286 120 *
ohair@286 121 * &lt;!-- Example: Local XML Schema element -->
ohair@286 122 * &lt;xs:complexType name="USPrice">
ohair@286 123 * &lt;xs:sequence>
ohair@286 124 * &lt;xs:element name="price" type="xs:decimal" nillable="true" minOccurs="1"/>
ohair@286 125 * &lt;/sequence>
ohair@286 126 * &lt;/xs:complexType>
ohair@286 127 * </pre>
ohair@286 128 * <p>
ohair@286 129 *
ohair@286 130 * <p> <b>Example 4: </b>Map a JavaBean property to an XML element
ohair@286 131 * with anonymous type.</p>
ohair@286 132 * <p>
ohair@286 133 * See Example 6 in @{@link XmlType}.
ohair@286 134 *
ohair@286 135 * <p>
ohair@286 136 * @author Sekhar Vajjhala, Sun Microsystems, Inc.
ohair@286 137 * @since JAXB2.0
ohair@286 138 */
ohair@286 139
ohair@286 140 @Retention(RUNTIME) @Target({FIELD, METHOD, PARAMETER})
ohair@286 141 public @interface XmlElement {
ohair@286 142 /**
ohair@286 143 * Name of the XML Schema element.
ohair@286 144 * <p> If the value is "##default", then element name is derived from the
ohair@286 145 * JavaBean property name.
ohair@286 146 */
ohair@286 147 String name() default "##default";
ohair@286 148
ohair@286 149 /**
ohair@286 150 * Customize the element declaration to be nillable.
ohair@286 151 * <p>If nillable() is true, then the JavaBean property is
ohair@286 152 * mapped to a XML Schema nillable element declaration.
ohair@286 153 */
ohair@286 154 boolean nillable() default false;
ohair@286 155
ohair@286 156 /**
ohair@286 157 * Customize the element declaration to be required.
ohair@286 158 * <p>If required() is true, then Javabean property is mapped to
ohair@286 159 * an XML schema element declaration with minOccurs="1".
ohair@286 160 * maxOccurs is "1" for a single valued property and "unbounded"
ohair@286 161 * for a multivalued property.
ohair@286 162 * <p>If required() is false, then the Javabean property is mapped
ohair@286 163 * to XML Schema element declaration with minOccurs="0".
ohair@286 164 * maxOccurs is "1" for a single valued property and "unbounded"
ohair@286 165 * for a multivalued property.
ohair@286 166 */
ohair@286 167
ohair@286 168 boolean required() default false;
ohair@286 169
ohair@286 170 /**
ohair@286 171 * XML target namespace of the XML Schema element.
ohair@286 172 * <p>
ohair@286 173 * If the value is "##default", then the namespace is determined
ohair@286 174 * as follows:
ohair@286 175 * <ol>
ohair@286 176 * <li>
ohair@286 177 * If the enclosing package has {@link XmlSchema} annotation,
ohair@286 178 * and its {@link XmlSchema#elementFormDefault() elementFormDefault}
ohair@286 179 * is {@link XmlNsForm#QUALIFIED QUALIFIED}, then the namespace of
ohair@286 180 * the enclosing class.
ohair@286 181 *
ohair@286 182 * <li>
ohair@286 183 * Otherwise &#39;&#39; (which produces unqualified element in the default
ohair@286 184 * namespace.
ohair@286 185 * </ol>
ohair@286 186 */
ohair@286 187 String namespace() default "##default";
ohair@286 188
ohair@286 189 /**
ohair@286 190 * Default value of this element.
ohair@286 191 *
ohair@286 192 * <p>
ohair@286 193 * The <pre>'\u0000'</pre> value specified as a default of this annotation element
ohair@286 194 * is used as a poor-man's substitute for null to allow implementations
ohair@286 195 * to recognize the 'no default value' state.
ohair@286 196 */
ohair@286 197 String defaultValue() default "\u0000";
ohair@286 198
ohair@286 199 /**
ohair@286 200 * The Java class being referenced.
ohair@286 201 */
ohair@286 202 Class type() default DEFAULT.class;
ohair@286 203
ohair@286 204 /**
ohair@286 205 * Used in {@link XmlElement#type()} to
ohair@286 206 * signal that the type be inferred from the signature
ohair@286 207 * of the property.
ohair@286 208 */
ohair@286 209 static final class DEFAULT {}
ohair@286 210 }

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