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

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  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>@XmlType(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> {@literal ->}    : 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 summary="" 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]+ {@literal ->} 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]+ {@literal ->} 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 {@literal ->} 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] {@literal &&} <br> [property]+ {@literal ->} attributes</td>
 160  *         <td>simplecontent</td>
 161  *         <td> </td>
 162  *       </tr>
 163  *
 164  *       <tr valign="top">
 165  *         <td>Class</td>
 166  *         <td>X</td>
 167  *         <td>1 [<tt>@XmlValue</tt> property] {@literal &&} <br> no properties {@literal ->} attribute</td>
 168  *         <td> </td>
 169  *         <td>simpletype</td>
 170  *       </tr>
 171  *     </tbody>
 172  *   </table>
 173  * </blockquote>
 174  *
 175  * <h3> Mapping an enum type </h3>
 176  *
 177  * An enum type maps to a XML schema simple type with enumeration
 178  * facets. The following annotation elements are ignored since they
 179  * are not meaningful: <tt>propOrder()</tt> , <tt>factoryMethod()</tt> ,
 180  * <tt>factoryClass()</tt> .
 181  *
 182  *  <h3> Usage with other annotations </h3>
 183  * <p> This annotation can be used with the following annotations:
 184  * {@link XmlRootElement}, {@link XmlAccessorOrder}, {@link XmlAccessorType},
 185  * {@link XmlEnum}. However, {@link
 186  * XmlAccessorOrder} and {@link XmlAccessorType} are ignored when this
 187  * annotation is used on an enum type.
 188  *
 189  * <p> <b> Example 1: </b> Map a class to a complex type with
 190  *   xs:sequence with a customized ordering of JavaBean properties.
 191  * </p>
 192  *
 193  * <pre>
 194  *   @XmlType(propOrder={"street", "city" , "state", "zip", "name" })
 195  *   public class USAddress {
 196  *     String getName() {..};
 197  *     void setName(String) {..};
 198  *
 199  *     String getStreet() {..};
 200  *     void setStreet(String) {..};


 389     /**
 390      * Name of the XML Schema type which the class is mapped.
 391      */
 392     String name() default "##default" ;
 393 
 394     /**
 395      * Specifies the order for XML Schema elements when class is
 396      * mapped to a XML Schema complex type.
 397      *
 398      * <p> Refer to the table for how the propOrder affects the
 399      * mapping of class </p>
 400      *
 401      * <p> The propOrder is a list of names of JavaBean properties in
 402      *     the class. Each name in the list is the name of a Java
 403      *     identifier of the JavaBean property. The order in which
 404      *     JavaBean properties are listed is the order of XML Schema
 405      *     elements to which the JavaBean properties are mapped. </p>
 406      * <p> All of the JavaBean properties being mapped to XML Schema elements
 407      *     must be listed.
 408      * <p> A JavaBean property or field listed in propOrder must not
 409      *     be transient or annotated with <tt>@XmlTransient</tt>.
 410      * <p> The default ordering of JavaBean properties is determined
 411      *     by @{@link XmlAccessorOrder}.
 412      */
 413     String[] propOrder() default {""};
 414 
 415     /**
 416      * Name of the target namespace of the XML Schema type. By
 417      * default, this is the target namespace to which the package
 418      * containing the class is mapped.
 419      */
 420     String namespace() default "##default" ;
 421 
 422     /**
 423      * Class containing a no-arg factory method for creating an
 424      * instance of this class. The default is this class.
 425      *
 426      * <p>If <tt>factoryClass</tt> is DEFAULT.class and
 427      * <tt>factoryMethod</tt> is "", then there is no static factory
 428      * method.
 429      *
 430      * <p>If <tt>factoryClass</tt> is DEFAULT.class and
 431      * <tt>factoryMethod</tt> is not "", then
 432      * <tt>factoryMethod</tt> is the name of a static factory method
 433      * in this class.
 434      *
 435      * <p>If <tt>factoryClass</tt> is not DEFAULT.class, then
 436      * <tt>factoryMethod</tt> must not be "" and must be the name of
 437      * a static factory method specified in <tt>factoryClass</tt>.
 438      */
 439     Class factoryClass() default DEFAULT.class;
 440 
 441     /**
 442      * Used in {@link XmlType#factoryClass()} to
 443      * signal that either factory mehod is not used or
 444      * that it's in the class with this {@link XmlType} itself.
 445      */
 446     static final class DEFAULT {}
 447 
 448     /**
 449      * Name of a no-arg factory method in the class specified in
 450      * <tt>factoryClass</tt> factoryClass().
 451      *
 452      */
 453     String factoryMethod() default "";
 454 }


  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 {@code @XmlType} 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 {@code factoryMethod()} and
  57  * {@code factoryClass()} 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 {@code @XmlType(name="")}.
  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 {@code @XmlType(name="") }, it
  88  *   is mapped to an anonymous type otherwise, the class name maps
  89  *   to a complex type name. The {@code XmlName()} 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  *   {@code propOrder()} can be used to customize the content model to be
  95  *   {@code xs:all} or {@code xs:sequence}.  It is used for specifying
  96  *   the order of XML elements in {@code xs:sequence}. </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 {@code namespace()}. </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  * {@code @XmlValue} 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> {@literal ->}    : represents a mapping </li>
 116  *   <li> [x]+  : one or more occurances of x </li>
 117  *   <li> [ {@code @XmlValue} property ]: JavaBean property annotated with
 118  *         {@code @XmlValue}</li>
 119  *   <li> X     : don't care
 120  * </ul>
 121  * <blockquote>
 122  *   <table summary="" 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]+ {@literal ->} 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]+ {@literal ->} 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 {@literal ->} 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 [{@code @XmlValue} property] {@literal &&} <br> [property]+ {@literal ->} attributes</td>
 160  *         <td>simplecontent</td>
 161  *         <td> </td>
 162  *       </tr>
 163  *
 164  *       <tr valign="top">
 165  *         <td>Class</td>
 166  *         <td>X</td>
 167  *         <td>1 [{@code @XmlValue} property] {@literal &&} <br> no properties {@literal ->} attribute</td>
 168  *         <td> </td>
 169  *         <td>simpletype</td>
 170  *       </tr>
 171  *     </tbody>
 172  *   </table>
 173  * </blockquote>
 174  *
 175  * <h3> Mapping an enum type </h3>
 176  *
 177  * An enum type maps to a XML schema simple type with enumeration
 178  * facets. The following annotation elements are ignored since they
 179  * are not meaningful: {@code propOrder()} , {@code factoryMethod()} ,
 180  * {@code factoryClass()} .
 181  *
 182  *  <h3> Usage with other annotations </h3>
 183  * <p> This annotation can be used with the following annotations:
 184  * {@link XmlRootElement}, {@link XmlAccessorOrder}, {@link XmlAccessorType},
 185  * {@link XmlEnum}. However, {@link
 186  * XmlAccessorOrder} and {@link XmlAccessorType} are ignored when this
 187  * annotation is used on an enum type.
 188  *
 189  * <p> <b> Example 1: </b> Map a class to a complex type with
 190  *   xs:sequence with a customized ordering of JavaBean properties.
 191  * </p>
 192  *
 193  * <pre>
 194  *   @XmlType(propOrder={"street", "city" , "state", "zip", "name" })
 195  *   public class USAddress {
 196  *     String getName() {..};
 197  *     void setName(String) {..};
 198  *
 199  *     String getStreet() {..};
 200  *     void setStreet(String) {..};


 389     /**
 390      * Name of the XML Schema type which the class is mapped.
 391      */
 392     String name() default "##default" ;
 393 
 394     /**
 395      * Specifies the order for XML Schema elements when class is
 396      * mapped to a XML Schema complex type.
 397      *
 398      * <p> Refer to the table for how the propOrder affects the
 399      * mapping of class </p>
 400      *
 401      * <p> The propOrder is a list of names of JavaBean properties in
 402      *     the class. Each name in the list is the name of a Java
 403      *     identifier of the JavaBean property. The order in which
 404      *     JavaBean properties are listed is the order of XML Schema
 405      *     elements to which the JavaBean properties are mapped. </p>
 406      * <p> All of the JavaBean properties being mapped to XML Schema elements
 407      *     must be listed.
 408      * <p> A JavaBean property or field listed in propOrder must not
 409      *     be transient or annotated with {@code @XmlTransient}.
 410      * <p> The default ordering of JavaBean properties is determined
 411      *     by @{@link XmlAccessorOrder}.
 412      */
 413     String[] propOrder() default {""};
 414 
 415     /**
 416      * Name of the target namespace of the XML Schema type. By
 417      * default, this is the target namespace to which the package
 418      * containing the class is mapped.
 419      */
 420     String namespace() default "##default" ;
 421 
 422     /**
 423      * Class containing a no-arg factory method for creating an
 424      * instance of this class. The default is this class.
 425      *
 426      * <p>If {@code factoryClass} is DEFAULT.class and
 427      * {@code factoryMethod} is "", then there is no static factory
 428      * method.
 429      *
 430      * <p>If {@code factoryClass} is DEFAULT.class and
 431      * {@code factoryMethod} is not "", then
 432      * {@code factoryMethod} is the name of a static factory method
 433      * in this class.
 434      *
 435      * <p>If {@code factoryClass} is not DEFAULT.class, then
 436      * {@code factoryMethod} must not be "" and must be the name of
 437      * a static factory method specified in {@code factoryClass}.
 438      */
 439     Class factoryClass() default DEFAULT.class;
 440 
 441     /**
 442      * Used in {@link XmlType#factoryClass()} to
 443      * signal that either factory mehod is not used or
 444      * that it's in the class with this {@link XmlType} itself.
 445      */
 446     static final class DEFAULT {}
 447 
 448     /**
 449      * Name of a no-arg factory method in the class specified in
 450      * {@code factoryClass} factoryClass().
 451      *
 452      */
 453     String factoryMethod() default "";
 454 }
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