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comparison: src/share/jaxws_classes/javax/xml/bind/annotation/XmlType.java

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

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1 /*
2 * Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package javax.xml.bind.annotation;
27
28 import static java.lang.annotation.ElementType.TYPE;
29 import java.lang.annotation.Retention;
30 import static java.lang.annotation.RetentionPolicy.RUNTIME;
31 import java.lang.annotation.Target;
32
33 /**
34 * <p>
35 * Maps a class or an enum type to a XML Schema type.
36 *
37 * <p><b>Usage</b></p>
38 * <p> The <tt>@XmlType</tt> annnotation can be used with the following program
39 * elements:
40 * <ul>
41 * <li> a top level class </li>
42 * <li> an enum type </li>
43 * </ul>
44 *
45 * <p>See "Package Specification" in javax.xml.bind.package javadoc for
46 * additional common information.</p>
47 *
48 * <h3> Mapping a Class </h3>
49 * <p>
50 * A class maps to a XML Schema type. A class is a data container for
51 * values represented by properties and fields. A schema type is a
52 * data container for values represented by schema components within a
53 * schema type's content model (e.g. model groups, attributes etc).
54 * <p> To be mapped, a class must either have a public no-arg
55 * constructor or a static no-arg factory method. The static factory
56 * method can be specified in <tt>factoryMethod()</tt> and
57 * <tt>factoryClass()</tt> annotation elements. The static factory
58 * method or the no-arg constructor is used during unmarshalling to
59 * create an instance of this class. If both are present, the static
60 * factory method overrides the no-arg constructor.
61 * <p>
62 * A class maps to either a XML Schema complex type or a XML Schema simple
63 * type. The XML Schema type is derived based on the
64 * mapping of JavaBean properties and fields contained within the
65 * class. The schema type to which the class is mapped can either be
66 * named or anonymous. A class can be mapped to an anonymous schema
67 * type by annotating the class with <tt>&#64XmlType(name="")</tt>.
68 * <p>
69 * Either a global element, local element or a local attribute can be
70 * associated with an anonymous type as follows:
71 * <ul>
72 * <li><b>global element: </b> A global element of an anonymous
73 * type can be derived by annotating the class with @{@link
74 * XmlRootElement}. See Example 3 below. </li>
75 *
76 * <li><b>local element: </b> A JavaBean property that references
77 * a class annotated with @XmlType(name="") and is mapped to the
78 * element associated with the anonymous type. See Example 4
79 * below.</li>
80 *
81 * <li><b>attribute: </b> A JavaBean property that references
82 * a class annotated with @XmlType(name="") and is mapped to the
83 * attribute associated with the anonymous type. See Example 5 below. </li>
84 * </ul>
85 * <b> Mapping to XML Schema Complex Type </b>
86 * <ul>
87 * <li>If class is annotated with <tt>@XmlType(name="") </tt>, it
88 * is mapped to an anonymous type otherwise, the class name maps
89 * to a complex type name. The <tt>XmlName()</tt> annotation element
90 * can be used to customize the name.</li>
91 *
92 * <li> Properties and fields that are mapped to elements are mapped to a
93 * content model within a complex type. The annotation element
94 * <tt>propOrder()</tt> can be used to customize the content model to be
95 * <tt>xs:all</tt> or <tt>xs:sequence</tt>. It is used for specifying
96 * the order of XML elements in <tt>xs:sequence</tt>. </li>
97 *
98 * <li> Properties and fields can be mapped to attributes within the
99 * complex type. </li>
100 *
101 * <li> The targetnamespace of the XML Schema type can be customized
102 * using the annotation element <tt>namespace()</tt>. </li>
103 * </ul>
104 *
105 * <p>
106 * <b> Mapping class to XML Schema simple type </b>
107 * <p>
108 * A class can be mapped to a XML Schema simple type using the
109 * <tt>@XmlValue</tt> annotation. For additional details and examples,
110 * see @{@link XmlValue} annotation type.
111 * <p>
112 * The following table shows the mapping of the class to a XML Schema
113 * complex type or simple type. The notational symbols used in the table are:
114 * <ul>
115 * <li> -> : represents a mapping </li>
116 * <li> [x]+ : one or more occurances of x </li>
117 * <li> [ <tt>@XmlValue</tt> property ]: JavaBean property annotated with
118 * <tt>@XmlValue</tt></li>
119 * <li> X : don't care
120 * </ul>
121 * <blockquote>
122 * <table border="1" cellpadding="4" cellspacing="3">
123 * <tbody>
124 * <tr>
125 * <td><b>Target</b></td>
126 * <td><b>propOrder</b></td>
127 * <td><b>ClassBody</b></td>
128 * <td><b>ComplexType</b></td>
129 * <td><b>SimpleType</b></td>
130 * </tr>
131 *
132 * <tr valign="top">
133 * <td>Class</td>
134 * <td>{}</td>
135 * <td>[property]+ -> elements</td>
136 * <td>complexcontent<br>xs:all</td>
137 * <td> </td>
138 * </tr>
139 *
140 * <tr valign="top">
141 * <td>Class</td>
142 * <td>non empty</td>
143 * <td>[property]+ -> elements</td>
144 * <td>complexcontent<br>xs:sequence</td>
145 * <td> </td>
146 * </tr>
147 *
148 * <tr valign="top">
149 * <td>Class</td>
150 * <td>X</td>
151 * <td>no property -> element</td>
152 * <td>complexcontent<br>empty sequence</td>
153 * <td> </td>
154 * </tr>
155 *
156 * <tr valign="top">
157 * <td>Class</td>
158 * <td>X</td>
159 * <td>1 [ <tt>@XmlValue</tt> property] && <br> [property]+
160 * ->attributes</td>
161 * <td>simplecontent</td>
162 * <td> </td>
163 * </tr>
164 *
165 * <tr valign="top">
166 * <td>Class</td>
167 * <td>X</td>
168 * <td>1 [ <tt>@XmlValue</tt> property ]&& <br> no properties
169 * -> attribute</td>
170 * <td> </td>
171 * <td>simpletype</td>
172 * <td> </td>
173 * </tr>
174 * </tbody>
175 * </table>
176 * </blockquote>
177 *
178 * <h3> Mapping an enum type </h3>
179 *
180 * An enum type maps to a XML schema simple type with enumeration
181 * facets. The following annotation elements are ignored since they
182 * are not meaningful: <tt>propOrder()</tt> , <tt>factoryMethod()</tt> ,
183 * <tt>factoryClass()</tt> .
184 *
185 * <h3> Usage with other annotations </h3>
186 * <p> This annotation can be used with the following annotations:
187 * {@link XmlRootElement}, {@link XmlAccessorOrder}, {@link XmlAccessorType},
188 * {@link XmlEnum}. However, {@link
189 * XmlAccessorOrder} and {@link XmlAccessorType} are ignored when this
190 * annotation is used on an enum type.
191 *
192 * <p> <b> Example 1: </b> Map a class to a complex type with
193 * xs:sequence with a customized ordering of JavaBean properties.
194 * </p>
195 *
196 * <pre>
197 * &#64;XmlType(propOrder={"street", "city" , "state", "zip", "name" })
198 * public class USAddress {
199 * String getName() {..};
200 * void setName(String) {..};
201 *
202 * String getStreet() {..};
203 * void setStreet(String) {..};
204 *
205 * String getCity() {..};
206 * void setCity(String) {..};
207 *
208 * String getState() {..};
209 * void setState(String) {..};
210 *
211 * java.math.BigDecimal getZip() {..};
212 * void setZip(java.math.BigDecimal) {..};
213 * }
214 *
215 * &lt;!-- XML Schema mapping for USAddress -->
216 * &lt;xs:complexType name="USAddress">
217 * &lt;xs:sequence>
218 * &lt;xs:element name="street" type="xs:string"/>
219 * &lt;xs:element name="city" type="xs:string"/>
220 * &lt;xs:element name="state" type="xs:string"/>
221 * &lt;xs:element name="zip" type="xs:decimal"/>
222 * &lt;xs:element name="name" type="xs:string"/>
223 * &lt;/xs:all>
224 * &lt;/xs:complexType>
225 * </pre>
226 * <p> <b> Example 2: </b> Map a class to a complex type with
227 * xs:all </p>
228 * <pre>
229 * &#64;XmlType(propOrder={})
230 * public class USAddress { ...}
231 *
232 * &lt;!-- XML Schema mapping for USAddress -->
233 * &lt;xs:complexType name="USAddress">
234 * &lt;xs:all>
235 * &lt;xs:element name="name" type="xs:string"/>
236 * &lt;xs:element name="street" type="xs:string"/>
237 * &lt;xs:element name="city" type="xs:string"/>
238 * &lt;xs:element name="state" type="xs:string"/>
239 * &lt;xs:element name="zip" type="xs:decimal"/>
240 * &lt;/xs:sequence>
241 * &lt;/xs:complexType>
242 *</pre>
243 * <p> <b> Example 3: </b> Map a class to a global element with an
244 * anonymous type.
245 * </p>
246 * <pre>
247 * &#64;XmlRootElement
248 * &#64;XmlType(name="")
249 * public class USAddress { ...}
250 *
251 * &lt;!-- XML Schema mapping for USAddress -->
252 * &lt;xs:element name="USAddress">
253 * &lt;xs:complexType>
254 * &lt;xs:sequence>
255 * &lt;xs:element name="name" type="xs:string"/>
256 * &lt;xs:element name="street" type="xs:string"/>
257 * &lt;xs:element name="city" type="xs:string"/>
258 * &lt;xs:element name="state" type="xs:string"/>
259 * &lt;xs:element name="zip" type="xs:decimal"/>
260 * &lt;/xs:sequence>
261 * &lt;/xs:complexType>
262 * &lt;/xs:element>
263 * </pre>
264 *
265 * <p> <b> Example 4: </b> Map a property to a local element with
266 * anonmyous type.
267 * <pre>
268 * //Example: Code fragment
269 * public class Invoice {
270 * USAddress addr;
271 * ...
272 * }
273 *
274 * &#64;XmlType(name="")
275 * public class USAddress { ... }
276 * }
277 *
278 * &lt;!-- XML Schema mapping for USAddress -->
279 * &lt;xs:complexType name="Invoice">
280 * &lt;xs:sequence>
281 * &lt;xs:element name="addr">
282 * &lt;xs:complexType>
283 * &lt;xs:element name="name", type="xs:string"/>
284 * &lt;xs:element name="city", type="xs:string"/>
285 * &lt;xs:element name="city" type="xs:string"/>
286 * &lt;xs:element name="state" type="xs:string"/>
287 * &lt;xs:element name="zip" type="xs:decimal"/>
288 * &lt;/xs:complexType>
289 * ...
290 * &lt;/xs:sequence>
291 * &lt;/xs:complexType>
292 * </pre>
293 *
294 * <p> <b> Example 5: </b> Map a property to an attribute with
295 * anonymous type.
296 *
297 * <pre>
298 *
299 * //Example: Code fragment
300 * public class Item {
301 * public String name;
302 * &#64;XmlAttribute
303 * public USPrice price;
304 * }
305 *
306 * // map class to anonymous simple type.
307 * &#64;XmlType(name="")
308 * public class USPrice {
309 * &#64;XmlValue
310 * public java.math.BigDecimal price;
311 * }
312 *
313 * &lt;!-- Example: XML Schema fragment -->
314 * &lt;xs:complexType name="Item">
315 * &lt;xs:sequence>
316 * &lt;xs:element name="name" type="xs:string"/>
317 * &lt;xs:attribute name="price">
318 * &lt;xs:simpleType>
319 * &lt;xs:restriction base="xs:decimal"/>
320 * &lt;/xs:simpleType>
321 * &lt;/xs:attribute>
322 * &lt;/xs:sequence>
323 * &lt;/xs:complexType>
324 * </pre>
325 *
326 * <p> <b> Example 6: </b> Define a factoryClass and factoryMethod
327 *
328 * <pre>
329 * &#64;XmlType(name="USAddressType", factoryClass=USAddressFactory.class,
330 * factoryMethod="getUSAddress")
331 * public class USAddress {
332 *
333 * private String city;
334 * private String name;
335 * private String state;
336 * private String street;
337 * private int zip;
338 *
339 * public USAddress(String name, String street, String city,
340 * String state, int zip) {
341 * this.name = name;
342 * this.street = street;
343 * this.city = city;
344 * this.state = state;
345 * this.zip = zip;
346 * }
347 * }
348 *
349 * public class USAddressFactory {
350 * public static USAddress getUSAddress(){
351 * return new USAddress("Mark Baker", "23 Elm St",
352 * "Dayton", "OH", 90952);
353 * }
354 *
355 * </pre>
356 *
357 * <p> <b> Example 7: </b> Define factoryMethod and use the default factoryClass
358 *
359 * <pre>
360 * &#64;XmlType(name="USAddressType", factoryMethod="getNewInstance")
361 * public class USAddress {
362 *
363 * private String city;
364 * private String name;
365 * private String state;
366 * private String street;
367 * private int zip;
368 *
369 * private USAddress() {}
370 *
371 * public static USAddress getNewInstance(){
372 * return new USAddress();
373 * }
374 * }
375 * </pre>
376 *
377 * @author Sekhar Vajjhala, Sun Microsystems, Inc.
378 * @see XmlElement
379 * @see XmlAttribute
380 * @see XmlValue
381 * @see XmlSchema
382 * @since JAXB2.0
383 */
384
385 @Retention(RUNTIME) @Target({TYPE})
386 public @interface XmlType {
387 /**
388 * Name of the XML Schema type which the class is mapped.
389 */
390 String name() default "##default" ;
391
392 /**
393 * Specifies the order for XML Schema elements when class is
394 * mapped to a XML Schema complex type.
395 *
396 * <p> Refer to the table for how the propOrder affects the
397 * mapping of class </p>
398 *
399 * <p> The propOrder is a list of names of JavaBean properties in
400 * the class. Each name in the list is the name of a Java
401 * identifier of the JavaBean property. The order in which
402 * JavaBean properties are listed is the order of XML Schema
403 * elements to which the JavaBean properties are mapped. </p>
404 * <p> All of the JavaBean properties being mapped to XML Schema elements
405 * must be listed.
406 * <p> A JavaBean property or field listed in propOrder must not
407 * be transient or annotated with <tt>@XmlTransient</tt>.
408 * <p> The default ordering of JavaBean properties is determined
409 * by @{@link XmlAccessorOrder}.
410 */
411 String[] propOrder() default {""};
412
413 /**
414 * Name of the target namespace of the XML Schema type. By
415 * default, this is the target namespace to which the package
416 * containing the class is mapped.
417 */
418 String namespace() default "##default" ;
419
420 /**
421 * Class containing a no-arg factory method for creating an
422 * instance of this class. The default is this class.
423 *
424 * <p>If <tt>factoryClass</tt> is DEFAULT.class and
425 * <tt>factoryMethod</tt> is "", then there is no static factory
426 * method.
427 *
428 * <p>If <tt>factoryClass</tt> is DEFAULT.class and
429 * <tt>factoryMethod</tt> is not "", then
430 * <tt>factoryMethod</tt> is the name of a static factory method
431 * in this class.
432 *
433 * <p>If <tt>factoryClass</tt> is not DEFAULT.class, then
434 * <tt>factoryMethod</tt> must not be "" and must be the name of
435 * a static factory method specified in <tt>factoryClass</tt>.
436 */
437 Class factoryClass() default DEFAULT.class;
438
439 /**
440 * Used in {@link XmlType#factoryClass()} to
441 * signal that either factory mehod is not used or
442 * that it's in the class with this {@link XmlType} itself.
443 */
444 static final class DEFAULT {}
445
446 /**
447 * Name of a no-arg factory method in the class specified in
448 * <tt>factoryClass</tt> factoryClass().
449 *
450 */
451 String factoryMethod() default "";
452 }

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