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1 /* |
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2 * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package javax.xml.bind.annotation; |
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27 |
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28 import java.lang.annotation.Target; |
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29 import java.lang.annotation.Retention; |
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30 import static java.lang.annotation.ElementType.*; |
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31 import static java.lang.annotation.RetentionPolicy.*; |
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32 |
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33 /** |
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34 * <p> |
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35 * Enables mapping a class to a XML Schema complex type with a |
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36 * simpleContent or a XML Schema simple type. |
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37 * </p> |
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38 * |
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39 * <p> |
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40 * <b> Usage: </b> |
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41 * <p> |
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42 * The <tt>@XmlValue</tt> annotation can be used with the following program |
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43 * elements: |
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44 * <ul> |
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45 * <li> a JavaBean property.</li> |
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46 * <li> non static, non transient field.</li> |
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47 * </ul> |
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48 * |
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49 * <p>See "Package Specification" in javax.xml.bind.package javadoc for |
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50 * additional common information.</p> |
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51 * |
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52 * The usage is subject to the following usage constraints: |
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53 * <ul> |
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54 * <li>At most one field or property can be annotated with the |
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55 * <tt>@XmlValue</tt> annotation. </li> |
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56 * |
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57 * <li><tt>@XmlValue</tt> can be used with the following |
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58 * annotations: {@link XmlList}. However this is redundant since |
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59 * {@link XmlList} maps a type to a simple schema type that derives by |
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60 * list just as {@link XmlValue} would. </li> |
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61 * |
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62 * <li>If the type of the field or property is a collection type, |
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63 * then the collection item type must map to a simple schema |
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64 * type. </li> |
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65 * |
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66 * <li>If the type of the field or property is not a collection |
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67 * type, then the type must map to a XML Schema simple type. </li> |
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68 * |
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69 * </ul> |
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70 * </p> |
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71 * <p> |
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72 * If the annotated JavaBean property is the sole class member being |
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73 * mapped to XML Schema construct, then the class is mapped to a |
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74 * simple type. |
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75 * |
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76 * If there are additional JavaBean properties (other than the |
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77 * JavaBean property annotated with <tt>@XmlValue</tt> annotation) |
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78 * that are mapped to XML attributes, then the class is mapped to a |
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79 * complex type with simpleContent. |
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80 * </p> |
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81 * |
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82 * <p> <b> Example 1: </b> Map a class to XML Schema simpleType</p> |
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83 * |
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84 * <pre> |
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85 * |
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86 * // Example 1: Code fragment |
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87 * public class USPrice { |
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88 * @XmlValue |
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89 * public java.math.BigDecimal price; |
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90 * } |
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91 * |
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92 * <!-- Example 1: XML Schema fragment --> |
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93 * <xs:simpleType name="USPrice"> |
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94 * <xs:restriction base="xs:decimal"/> |
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95 * </xs:simpleType> |
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96 * |
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97 * </pre> |
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98 * |
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99 * <p><b> Example 2: </b> Map a class to XML Schema complexType with |
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100 * with simpleContent.</p> |
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101 * |
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102 * <pre> |
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103 * |
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104 * // Example 2: Code fragment |
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105 * public class InternationalPrice { |
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106 * @XmlValue |
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107 * public java.math.BigDecimal price; |
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108 * |
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109 * @XmlAttribute |
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110 * public String currency; |
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111 * } |
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112 * |
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113 * <!-- Example 2: XML Schema fragment --> |
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114 * <xs:complexType name="InternationalPrice"> |
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115 * <xs:simpleContent> |
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116 * <xs:extension base="xs:decimal"> |
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117 * <xs:attribute name="currency" type="xs:string"/> |
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118 * </xs:extension> |
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119 * </xs:simpleContent> |
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120 * </xs:complexType> |
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121 * |
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122 * </pre> |
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123 * </p> |
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124 * |
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125 * @author Sekhar Vajjhala, Sun Microsystems, Inc. |
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126 * @see XmlType |
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127 * @since JAXB2.0 |
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128 */ |
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129 |
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130 @Retention(RUNTIME) @Target({FIELD, METHOD}) |
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131 public @interface XmlValue {} |