src/share/jaxws_classes/javax/xml/bind/Marshaller.java

Thu, 31 Aug 2017 15:18:52 +0800

author
aoqi
date
Thu, 31 Aug 2017 15:18:52 +0800
changeset 637
9c07ef4934dd
parent 408
b0610cd08440
parent 0
373ffda63c9a
permissions
-rw-r--r--

merge

     1 /*
     2  * Copyright (c) 2003, 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  */
    26 package javax.xml.bind;
    28 import javax.xml.bind.annotation.XmlRootElement;
    29 import javax.xml.bind.annotation.adapters.XmlAdapter;
    30 import javax.xml.bind.attachment.AttachmentMarshaller;
    31 import javax.xml.validation.Schema;
    32 import java.io.File;
    34 /**
    35  * <p>
    36  * The <tt>Marshaller</tt> class is responsible for governing the process
    37  * of serializing Java content trees back into XML data.  It provides the basic
    38  * marshalling methods:
    39  *
    40  * <p>
    41  * <i>Assume the following setup code for all following code fragments:</i>
    42  * <blockquote>
    43  *    <pre>
    44  *       JAXBContext jc = JAXBContext.newInstance( "com.acme.foo" );
    45  *       Unmarshaller u = jc.createUnmarshaller();
    46  *       Object element = u.unmarshal( new File( "foo.xml" ) );
    47  *       Marshaller m = jc.createMarshaller();
    48  *    </pre>
    49  * </blockquote>
    50  *
    51  * <p>
    52  * Marshalling to a File:
    53  * <blockquote>
    54  *    <pre>
    55  *       OutputStream os = new FileOutputStream( "nosferatu.xml" );
    56  *       m.marshal( element, os );
    57  *    </pre>
    58  * </blockquote>
    59  *
    60  * <p>
    61  * Marshalling to a SAX ContentHandler:
    62  * <blockquote>
    63  *    <pre>
    64  *       // assume MyContentHandler instanceof ContentHandler
    65  *       m.marshal( element, new MyContentHandler() );
    66  *    </pre>
    67  * </blockquote>
    68  *
    69  * <p>
    70  * Marshalling to a DOM Node:
    71  * <blockquote>
    72  *    <pre>
    73  *       DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    74  *       dbf.setNamespaceAware(true);
    75  *       DocumentBuilder db = dbf.newDocumentBuilder();
    76  *       Document doc = db.newDocument();
    77  *
    78  *       m.marshal( element, doc );
    79  *    </pre>
    80  * </blockquote>
    81  *
    82  * <p>
    83  * Marshalling to a java.io.OutputStream:
    84  * <blockquote>
    85  *    <pre>
    86  *       m.marshal( element, System.out );
    87  *    </pre>
    88  * </blockquote>
    89  *
    90  * <p>
    91  * Marshalling to a java.io.Writer:
    92  * <blockquote>
    93  *    <pre>
    94  *       m.marshal( element, new PrintWriter( System.out ) );
    95  *    </pre>
    96  * </blockquote>
    97  *
    98  * <p>
    99  * Marshalling to a javax.xml.transform.SAXResult:
   100  * <blockquote>
   101  *    <pre>
   102  *       // assume MyContentHandler instanceof ContentHandler
   103  *       SAXResult result = new SAXResult( new MyContentHandler() );
   104  *
   105  *       m.marshal( element, result );
   106  *    </pre>
   107  * </blockquote>
   108  *
   109  * <p>
   110  * Marshalling to a javax.xml.transform.DOMResult:
   111  * <blockquote>
   112  *    <pre>
   113  *       DOMResult result = new DOMResult();
   114  *
   115  *       m.marshal( element, result );
   116  *    </pre>
   117  * </blockquote>
   118  *
   119  * <p>
   120  * Marshalling to a javax.xml.transform.StreamResult:
   121  * <blockquote>
   122  *    <pre>
   123  *       StreamResult result = new StreamResult( System.out );
   124  *
   125  *       m.marshal( element, result );
   126  *    </pre>
   127  * </blockquote>
   128  *
   129  * <p>
   130  * Marshalling to a javax.xml.stream.XMLStreamWriter:
   131  * <blockquote>
   132  *    <pre>
   133  *       XMLStreamWriter xmlStreamWriter =
   134  *           XMLOutputFactory.newInstance().createXMLStreamWriter( ... );
   135  *
   136  *       m.marshal( element, xmlStreamWriter );
   137  *    </pre>
   138  * </blockquote>
   139  *
   140  * <p>
   141  * Marshalling to a javax.xml.stream.XMLEventWriter:
   142  * <blockquote>
   143  *    <pre>
   144  *       XMLEventWriter xmlEventWriter =
   145  *           XMLOutputFactory.newInstance().createXMLEventWriter( ... );
   146  *
   147  *       m.marshal( element, xmlEventWriter );
   148  *    </pre>
   149  * </blockquote>
   150  *
   151  * <p>
   152  * <a name="elementMarshalling"></a>
   153  * <b>Marshalling content tree rooted by a JAXB element</b><br>
   154  * <blockquote>
   155  * The first parameter of the overloaded
   156  * <tt>Marshaller.marshal(java.lang.Object, ...)</tt> methods must be a
   157  * JAXB element as computed by
   158  * {@link JAXBIntrospector#isElement(java.lang.Object)};
   159  * otherwise, a <tt>Marshaller.marshal</tt> method must throw a
   160  * {@link MarshalException}. There exist two mechanisms
   161  * to enable marshalling an instance that is not a JAXB element.
   162  * One method is to wrap the instance as a value of a {@link JAXBElement},
   163  * and pass the wrapper element as the first parameter to
   164  * a <tt>Marshaller.marshal</tt> method. For java to schema binding, it
   165  * is also possible to simply annotate the instance's class with
   166  * &#64;{@link XmlRootElement}.
   167  * </blockquote>
   168  *
   169  * <p>
   170  * <b>Encoding</b><br>
   171  * <blockquote>
   172  * By default, the Marshaller will use UTF-8 encoding when generating XML data
   173  * to a <tt>java.io.OutputStream</tt>, or a <tt>java.io.Writer</tt>.  Use the
   174  * {@link #setProperty(String,Object) setProperty} API to change the output
   175  * encoding used during these marshal operations.  Client applications are
   176  * expected to supply a valid character encoding name as defined in the
   177  * <a href="http://www.w3.org/TR/2000/REC-xml-20001006#charencoding">W3C XML 1.0
   178  * Recommendation</a> and supported by your Java Platform</a>.
   179  * </blockquote>
   180  *
   181  * <p>
   182  * <b>Validation and Well-Formedness</b><br>
   183  * <blockquote>
   184  * <p>
   185  * Client applications are not required to validate the Java content tree prior
   186  * to calling any of the marshal API's.  Furthermore, there is no requirement
   187  * that the Java content tree be valid with respect to its original schema in
   188  * order to marshal it back into XML data.  Different JAXB Providers will
   189  * support marshalling invalid Java content trees at varying levels, however
   190  * all JAXB Providers must be able to marshal a valid content tree back to
   191  * XML data.  A JAXB Provider must throw a <tt>MarshalException</tt> when it
   192  * is unable to complete the marshal operation due to invalid content.  Some
   193  * JAXB Providers will fully allow marshalling invalid content, others will fail
   194  * on the first validation error.
   195  * <p>
   196  * Even when schema validation is not explictly enabled for the marshal operation,
   197  * it is possible that certain types of validation events will be detected
   198  * during the operation.  Validation events will be reported to the registered
   199  * event handler.  If the client application has not registered an event handler
   200  * prior to invoking one of the marshal API's, then events will be delivered to
   201  * a default event handler which will terminate the marshal operation after
   202  * encountering the first error or fatal error. Note that for JAXB 2.0 and
   203  * later versions, {@link javax.xml.bind.helpers.DefaultValidationEventHandler} is
   204  * no longer used.
   205  *
   206  * </blockquote>
   207  *
   208  * <p>
   209  * <a name="supportedProps"></a>
   210  * <b>Supported Properties</b><br>
   211  * <blockquote>
   212  * <p>
   213  * All JAXB Providers are required to support the following set of properties.
   214  * Some providers may support additional properties.
   215  * <dl>
   216  *   <dt><tt>jaxb.encoding</tt> - value must be a java.lang.String</dt>
   217  *   <dd>The output encoding to use when marshalling the XML data.  The
   218  *               Marshaller will use "UTF-8" by default if this property is not
   219  *       specified.</dd>
   220  *   <dt><tt>jaxb.formatted.output</tt> - value must be a java.lang.Boolean</dt>
   221  *   <dd>This property controls whether or not the Marshaller will format
   222  *       the resulting XML data with line breaks and indentation.  A
   223  *       true value for this property indicates human readable indented
   224  *       xml data, while a false value indicates unformatted xml data.
   225  *       The Marshaller will default to false (unformatted) if this
   226  *       property is not specified.</dd>
   227  *   <dt><tt>jaxb.schemaLocation</tt> - value must be a java.lang.String</dt>
   228  *   <dd>This property allows the client application to specify an
   229  *       xsi:schemaLocation attribute in the generated XML data.  The format of
   230  *       the schemaLocation attribute value is discussed in an easy to
   231  *       understand, non-normative form in
   232  *       <a href="http://www.w3.org/TR/xmlschema-0/#schemaLocation">Section 5.6
   233  *       of the W3C XML Schema Part 0: Primer</a> and specified in
   234  *       <a href="http://www.w3.org/TR/xmlschema-1/#Instance_Document_Constructions">
   235  *       Section 2.6 of the W3C XML Schema Part 1: Structures</a>.</dd>
   236  *   <dt><tt>jaxb.noNamespaceSchemaLocation</tt> - value must be a java.lang.String</dt>
   237  *   <dd>This property allows the client application to specify an
   238  *       xsi:noNamespaceSchemaLocation attribute in the generated XML
   239  *       data.  The format of the schemaLocation attribute value is discussed in
   240  *       an easy to understand, non-normative form in
   241  *       <a href="http://www.w3.org/TR/xmlschema-0/#schemaLocation">Section 5.6
   242  *       of the W3C XML Schema Part 0: Primer</a> and specified in
   243  *       <a href="http://www.w3.org/TR/xmlschema-1/#Instance_Document_Constructions">
   244  *       Section 2.6 of the W3C XML Schema Part 1: Structures</a>.</dd>
   245  *   <dt><tt>jaxb.fragment</tt> - value must be a java.lang.Boolean</dt>
   246  *   <dd>This property determines whether or not document level events will be
   247  *       generated by the Marshaller.  If the property is not specified, the
   248  *       default is <tt>false</tt>. This property has different implications depending
   249  *       on which marshal api you are using - when this property is set to true:<br>
   250  *       <ul>
   251  *         <li>{@link #marshal(Object,org.xml.sax.ContentHandler) marshal(Object,ContentHandler)} - the Marshaller won't
   252  *             invoke {@link org.xml.sax.ContentHandler#startDocument()} and
   253  *             {@link org.xml.sax.ContentHandler#endDocument()}.</li>
   254  *         <li>{@link #marshal(Object,org.w3c.dom.Node) marshal(Object,Node)} - the property has no effect on this
   255  *             API.</li>
   256  *         <li>{@link #marshal(Object,java.io.OutputStream) marshal(Object,OutputStream)} - the Marshaller won't
   257  *             generate an xml declaration.</li>
   258  *         <li>{@link #marshal(Object,java.io.Writer) marshal(Object,Writer)} - the Marshaller won't
   259  *             generate an xml declaration.</li>
   260  *         <li>{@link #marshal(Object,javax.xml.transform.Result) marshal(Object,Result)} - depends on the kind of
   261  *             Result object, see semantics for Node, ContentHandler, and Stream APIs</li>
   262  *         <li>{@link #marshal(Object,javax.xml.stream.XMLEventWriter) marshal(Object,XMLEventWriter)} - the
   263  *             Marshaller will not generate {@link javax.xml.stream.events.XMLEvent#START_DOCUMENT} and
   264  *             {@link javax.xml.stream.events.XMLEvent#END_DOCUMENT} events.</li>
   265  *         <li>{@link #marshal(Object,javax.xml.stream.XMLStreamWriter) marshal(Object,XMLStreamWriter)} - the
   266  *             Marshaller will not generate {@link javax.xml.stream.events.XMLEvent#START_DOCUMENT} and
   267  *             {@link javax.xml.stream.events.XMLEvent#END_DOCUMENT} events.</li>
   268  *       </ul>
   269  *   </dd>
   270  * </dl>
   271  * </blockquote>
   272  *
   273  * <p>
   274  * <a name="marshalEventCallback"></a>
   275  * <b>Marshal Event Callbacks</b><br>
   276  * <blockquote>
   277  * "The {@link Marshaller} provides two styles of callback mechanisms
   278  * that allow application specific processing during key points in the
   279  * unmarshalling process.  In 'class defined' event callbacks, application
   280  * specific code placed in JAXB mapped classes is triggered during
   281  * marshalling.  'External listeners' allow for centralized processing
   282  * of marshal events in one callback method rather than by type event callbacks.
   283  *
   284  * <p>
   285  * Class defined event callback methods allow any JAXB mapped class to specify
   286  * its own specific callback methods by defining methods with the following method signatures:
   287  * <blockquote>
   288  * <pre>
   289  *   // Invoked by Marshaller after it has created an instance of this object.
   290  *   boolean beforeMarshal(Marshaller);
   291  *
   292  *   // Invoked by Marshaller after it has marshalled all properties of this object.
   293  *   void afterMarshal(Marshaller);
   294  * </pre>
   295  * </blockquote>
   296  * The class defined event callback methods should be used when the callback method requires
   297  * access to non-public methods and/or fields of the class.
   298  * <p>
   299  * The external listener callback mechanism enables the registration of a {@link Listener}
   300  * instance with a {@link Marshaller#setListener(Listener)}. The external listener receives all callback events,
   301  * allowing for more centralized processing than per class defined callback methods.
   302  * <p>
   303  * The 'class defined' and external listener event callback methods are independent of each other,
   304  * both can be called for one event. The invocation ordering when both listener callback methods exist is
   305  * defined in {@link Listener#beforeMarshal(Object)} and {@link Listener#afterMarshal(Object)}.
   306  * <p>
   307  * An event callback method throwing an exception terminates the current marshal process.
   308  * </blockquote>
   309  *
   310  * @author <ul><li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li><li>Ryan Shoemaker, Sun Microsystems, Inc.</li><li>Joe Fialli, Sun Microsystems, Inc.</li></ul>
   311  * @see JAXBContext
   312  * @see Validator
   313  * @see Unmarshaller
   314  * @since JAXB1.0
   315  */
   316 public interface Marshaller {
   318     /**
   319      * The name of the property used to specify the output encoding in
   320      * the marshalled XML data.
   321      */
   322     public static final String JAXB_ENCODING =
   323         "jaxb.encoding";
   325     /**
   326      * The name of the property used to specify whether or not the marshalled
   327      * XML data is formatted with linefeeds and indentation.
   328      */
   329     public static final String JAXB_FORMATTED_OUTPUT =
   330         "jaxb.formatted.output";
   332     /**
   333      * The name of the property used to specify the xsi:schemaLocation
   334      * attribute value to place in the marshalled XML output.
   335      */
   336     public static final String JAXB_SCHEMA_LOCATION =
   337         "jaxb.schemaLocation";
   339     /**
   340      * The name of the property used to specify the
   341      * xsi:noNamespaceSchemaLocation attribute value to place in the marshalled
   342      * XML output.
   343      */
   344     public static final String JAXB_NO_NAMESPACE_SCHEMA_LOCATION =
   345         "jaxb.noNamespaceSchemaLocation";
   347     /**
   348      * The name of the property used to specify whether or not the marshaller
   349      * will generate document level events (ie calling startDocument or endDocument).
   350      */
   351     public static final String JAXB_FRAGMENT =
   352         "jaxb.fragment";
   354     /**
   355      * Marshal the content tree rooted at <tt>jaxbElement</tt> into the specified
   356      * <tt>javax.xml.transform.Result</tt>.
   357      *
   358      * <p>
   359      * All JAXB Providers must at least support
   360      * {@link javax.xml.transform.dom.DOMResult},
   361      * {@link javax.xml.transform.sax.SAXResult}, and
   362      * {@link javax.xml.transform.stream.StreamResult}. It can
   363      * support other derived classes of <tt>Result</tt> as well.
   364      *
   365      * @param jaxbElement
   366      *      The root of content tree to be marshalled.
   367      * @param result
   368      *      XML will be sent to this Result
   369      *
   370      * @throws JAXBException
   371      *      If any unexpected problem occurs during the marshalling.
   372      * @throws MarshalException
   373      *      If the {@link ValidationEventHandler ValidationEventHandler}
   374      *      returns false from its <tt>handleEvent</tt> method or the
   375      *      <tt>Marshaller</tt> is unable to marshal <tt>obj</tt> (or any
   376      *      object reachable from <tt>obj</tt>).  See <a href="#elementMarshalling">
   377      *      Marshalling a JAXB element</a>.
   378      * @throws IllegalArgumentException
   379      *      If any of the method parameters are null
   380      */
   381     public void marshal( Object jaxbElement, javax.xml.transform.Result result )
   382         throws JAXBException;
   384     /**
   385      * Marshal the content tree rooted at <tt>jaxbElement</tt> into an output stream.
   386      *
   387      * @param jaxbElement
   388      *      The root of content tree to be marshalled.
   389      * @param os
   390      *      XML will be added to this stream.
   391      *
   392      * @throws JAXBException
   393      *      If any unexpected problem occurs during the marshalling.
   394      * @throws MarshalException
   395      *      If the {@link ValidationEventHandler ValidationEventHandler}
   396      *      returns false from its <tt>handleEvent</tt> method or the
   397      *      <tt>Marshaller</tt> is unable to marshal <tt>obj</tt> (or any
   398      *      object reachable from <tt>obj</tt>).  See <a href="#elementMarshalling">
   399      *      Marshalling a JAXB element</a>.
   400      * @throws IllegalArgumentException
   401      *      If any of the method parameters are null
   402      */
   403     public void marshal( Object jaxbElement, java.io.OutputStream os )
   404         throws JAXBException;
   406     /**
   407      * Marshal the content tree rooted at <tt>jaxbElement</tt> into a file.
   408      *
   409      * @param jaxbElement
   410      *      The root of content tree to be marshalled.
   411      * @param output
   412      *      File to be written. If this file already exists, it will be overwritten.
   413      *
   414      * @throws JAXBException
   415      *      If any unexpected problem occurs during the marshalling.
   416      * @throws MarshalException
   417      *      If the {@link ValidationEventHandler ValidationEventHandler}
   418      *      returns false from its <tt>handleEvent</tt> method or the
   419      *      <tt>Marshaller</tt> is unable to marshal <tt>obj</tt> (or any
   420      *      object reachable from <tt>obj</tt>).  See <a href="#elementMarshalling">
   421      *      Marshalling a JAXB element</a>.
   422      * @throws IllegalArgumentException
   423      *      If any of the method parameters are null
   424      * @since JAXB2.1
   425      */
   426     public void marshal( Object jaxbElement, File output )
   427         throws JAXBException;
   429     /**
   430      * Marshal the content tree rooted at <tt>jaxbElement</tt> into a Writer.
   431      *
   432      * @param jaxbElement
   433      *      The root of content tree to be marshalled.
   434      * @param writer
   435      *      XML will be sent to this writer.
   436      *
   437      * @throws JAXBException
   438      *      If any unexpected problem occurs during the marshalling.
   439      * @throws MarshalException
   440      *      If the {@link ValidationEventHandler ValidationEventHandler}
   441      *      returns false from its <tt>handleEvent</tt> method or the
   442      *      <tt>Marshaller</tt> is unable to marshal <tt>obj</tt> (or any
   443      *      object reachable from <tt>obj</tt>).  See <a href="#elementMarshalling">
   444      *      Marshalling a JAXB element</a>.
   445      * @throws IllegalArgumentException
   446      *      If any of the method parameters are null
   447      */
   448     public void marshal( Object jaxbElement, java.io.Writer writer )
   449         throws JAXBException;
   451     /**
   452      * Marshal the content tree rooted at <tt>jaxbElement</tt> into SAX2 events.
   453      *
   454      * @param jaxbElement
   455      *      The root of content tree to be marshalled.
   456      * @param handler
   457      *      XML will be sent to this handler as SAX2 events.
   458      *
   459      * @throws JAXBException
   460      *      If any unexpected problem occurs during the marshalling.
   461      * @throws MarshalException
   462      *      If the {@link ValidationEventHandler ValidationEventHandler}
   463      *      returns false from its <tt>handleEvent</tt> method or the
   464      *      <tt>Marshaller</tt> is unable to marshal <tt>obj</tt> (or any
   465      *      object reachable from <tt>obj</tt>).  See <a href="#elementMarshalling">
   466      *      Marshalling a JAXB element</a>.
   467      * @throws IllegalArgumentException
   468      *      If any of the method parameters are null
   469      */
   470     public void marshal( Object jaxbElement, org.xml.sax.ContentHandler handler )
   471         throws JAXBException;
   473     /**
   474      * Marshal the content tree rooted at <tt>jaxbElement</tt> into a DOM tree.
   475      *
   476      * @param jaxbElement
   477      *      The content tree to be marshalled.
   478      * @param node
   479      *      DOM nodes will be added as children of this node.
   480      *      This parameter must be a Node that accepts children
   481      *      ({@link org.w3c.dom.Document},
   482      *      {@link  org.w3c.dom.DocumentFragment}, or
   483      *      {@link  org.w3c.dom.Element})
   484      *
   485      * @throws JAXBException
   486      *      If any unexpected problem occurs during the marshalling.
   487      * @throws MarshalException
   488      *      If the {@link ValidationEventHandler ValidationEventHandler}
   489      *      returns false from its <tt>handleEvent</tt> method or the
   490      *      <tt>Marshaller</tt> is unable to marshal <tt>jaxbElement</tt> (or any
   491      *      object reachable from <tt>jaxbElement</tt>).  See <a href="#elementMarshalling">
   492      *      Marshalling a JAXB element</a>.
   493      * @throws IllegalArgumentException
   494      *      If any of the method parameters are null
   495      */
   496     public void marshal( Object jaxbElement, org.w3c.dom.Node node )
   497         throws JAXBException;
   499     /**
   500      * Marshal the content tree rooted at <tt>jaxbElement</tt> into a
   501      * {@link javax.xml.stream.XMLStreamWriter}.
   502      *
   503      * @param jaxbElement
   504      *      The content tree to be marshalled.
   505      * @param writer
   506      *      XML will be sent to this writer.
   507      *
   508      * @throws JAXBException
   509      *      If any unexpected problem occurs during the marshalling.
   510      * @throws MarshalException
   511      *      If the {@link ValidationEventHandler ValidationEventHandler}
   512      *      returns false from its <tt>handleEvent</tt> method or the
   513      *      <tt>Marshaller</tt> is unable to marshal <tt>obj</tt> (or any
   514      *      object reachable from <tt>obj</tt>).  See <a href="#elementMarshalling">
   515      *      Marshalling a JAXB element</a>.
   516      * @throws IllegalArgumentException
   517      *      If any of the method parameters are null
   518      * @since JAXB 2.0
   519      */
   520     public void marshal( Object jaxbElement, javax.xml.stream.XMLStreamWriter writer )
   521         throws JAXBException;
   523     /**
   524      * Marshal the content tree rooted at <tt>jaxbElement</tt> into a
   525      * {@link javax.xml.stream.XMLEventWriter}.
   526      *
   527      * @param jaxbElement
   528      *      The content tree rooted at jaxbElement to be marshalled.
   529      * @param writer
   530      *      XML will be sent to this writer.
   531      *
   532      * @throws JAXBException
   533      *      If any unexpected problem occurs during the marshalling.
   534      * @throws MarshalException
   535      *      If the {@link ValidationEventHandler ValidationEventHandler}
   536      *      returns false from its <tt>handleEvent</tt> method or the
   537      *      <tt>Marshaller</tt> is unable to marshal <tt>obj</tt> (or any
   538      *      object reachable from <tt>obj</tt>).  See <a href="#elementMarshalling">
   539      *      Marshalling a JAXB element</a>.
   540      * @throws IllegalArgumentException
   541      *      If any of the method parameters are null
   542      * @since JAXB 2.0
   543      */
   544     public void marshal( Object jaxbElement, javax.xml.stream.XMLEventWriter writer )
   545         throws JAXBException;
   547     /**
   548      * Get a DOM tree view of the content tree(Optional).
   549      *
   550      * If the returned DOM tree is updated, these changes are also
   551      * visible in the content tree.
   552      * Use {@link #marshal(Object, org.w3c.dom.Node)} to force
   553      * a deep copy of the content tree to a DOM representation.
   554      *
   555      * @param contentTree - JAXB Java representation of XML content
   556      *
   557      * @return the DOM tree view of the contentTree
   558      *
   559      * @throws UnsupportedOperationException
   560      *      If the JAXB provider implementation does not support a
   561      *      DOM view of the content tree
   562      *
   563      * @throws IllegalArgumentException
   564      *      If any of the method parameters are null
   565      *
   566      * @throws JAXBException
   567      *      If any unexpected problem occurs
   568      *
   569      */
   570     public org.w3c.dom.Node getNode( java.lang.Object contentTree )
   571         throws JAXBException;
   573     /**
   574      * Set the particular property in the underlying implementation of
   575      * <tt>Marshaller</tt>.  This method can only be used to set one of
   576      * the standard JAXB defined properties above or a provider specific
   577      * property.  Attempting to set an undefined property will result in
   578      * a PropertyException being thrown.  See <a href="#supportedProps">
   579      * Supported Properties</a>.
   580      *
   581      * @param name the name of the property to be set. This value can either
   582      *              be specified using one of the constant fields or a user
   583      *              supplied string.
   584      * @param value the value of the property to be set
   585      *
   586      * @throws PropertyException when there is an error processing the given
   587      *                            property or value
   588      * @throws IllegalArgumentException
   589      *      If the name parameter is null
   590      */
   591     public void setProperty( String name, Object value )
   592         throws PropertyException;
   594     /**
   595      * Get the particular property in the underlying implementation of
   596      * <tt>Marshaller</tt>.  This method can only be used to get one of
   597      * the standard JAXB defined properties above or a provider specific
   598      * property.  Attempting to get an undefined property will result in
   599      * a PropertyException being thrown.  See <a href="#supportedProps">
   600      * Supported Properties</a>.
   601      *
   602      * @param name the name of the property to retrieve
   603      * @return the value of the requested property
   604      *
   605      * @throws PropertyException
   606      *      when there is an error retrieving the given property or value
   607      *      property name
   608      * @throws IllegalArgumentException
   609      *      If the name parameter is null
   610      */
   611     public Object getProperty( String name ) throws PropertyException;
   613     /**
   614      * Allow an application to register a validation event handler.
   615      * <p>
   616      * The validation event handler will be called by the JAXB Provider if any
   617      * validation errors are encountered during calls to any of the marshal
   618      * API's.  If the client application does not register a validation event
   619      * handler before invoking one of the marshal methods, then validation
   620      * events will be handled by the default event handler which will terminate
   621      * the marshal operation after the first error or fatal error is encountered.
   622      * <p>
   623      * Calling this method with a null parameter will cause the Marshaller
   624      * to revert back to the default default event handler.
   625      *
   626      * @param handler the validation event handler
   627      * @throws JAXBException if an error was encountered while setting the
   628      *         event handler
   629      */
   630     public void setEventHandler( ValidationEventHandler handler )
   631         throws JAXBException;
   633     /**
   634      * Return the current event handler or the default event handler if one
   635      * hasn't been set.
   636      *
   637      * @return the current ValidationEventHandler or the default event handler
   638      *         if it hasn't been set
   639      * @throws JAXBException if an error was encountered while getting the
   640      *         current event handler
   641      */
   642     public ValidationEventHandler getEventHandler()
   643         throws JAXBException;
   647     /**
   648      * Associates a configured instance of {@link XmlAdapter} with this marshaller.
   649      *
   650      * <p>
   651      * This is a convenience method that invokes <code>setAdapter(adapter.getClass(),adapter);</code>.
   652      *
   653      * @see #setAdapter(Class,XmlAdapter)
   654      * @throws IllegalArgumentException
   655      *      if the adapter parameter is null.
   656      * @throws UnsupportedOperationException
   657      *      if invoked agains a JAXB 1.0 implementation.
   658      * @since JAXB 2.0
   659      */
   660     public void setAdapter( XmlAdapter adapter );
   662     /**
   663      * Associates a configured instance of {@link XmlAdapter} with this marshaller.
   664      *
   665      * <p>
   666      * Every marshaller internally maintains a
   667      * {@link java.util.Map}&lt;{@link Class},{@link XmlAdapter}>,
   668      * which it uses for marshalling classes whose fields/methods are annotated
   669      * with {@link javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter}.
   670      *
   671      * <p>
   672      * This method allows applications to use a configured instance of {@link XmlAdapter}.
   673      * When an instance of an adapter is not given, a marshaller will create
   674      * one by invoking its default constructor.
   675      *
   676      * @param type
   677      *      The type of the adapter. The specified instance will be used when
   678      *      {@link javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter#value()}
   679      *      refers to this type.
   680      * @param adapter
   681      *      The instance of the adapter to be used. If null, it will un-register
   682      *      the current adapter set for this type.
   683      * @throws IllegalArgumentException
   684      *      if the type parameter is null.
   685      * @throws UnsupportedOperationException
   686      *      if invoked agains a JAXB 1.0 implementation.
   687      * @since JAXB 2.0
   688      */
   689     public <A extends XmlAdapter> void setAdapter( Class<A> type, A adapter );
   691     /**
   692      * Gets the adapter associated with the specified type.
   693      *
   694      * This is the reverse operation of the {@link #setAdapter} method.
   695      *
   696      * @throws IllegalArgumentException
   697      *      if the type parameter is null.
   698      * @throws UnsupportedOperationException
   699      *      if invoked agains a JAXB 1.0 implementation.
   700      * @since JAXB 2.0
   701      */
   702     public <A extends XmlAdapter> A getAdapter( Class<A> type );
   705     /**
   706      * <p>Associate a context that enables binary data within an XML document
   707      * to be transmitted as XML-binary optimized attachment.
   708      * The attachment is referenced from the XML document content model
   709      * by content-id URIs(cid) references stored within the xml document.
   710      *
   711      * @throws IllegalStateException if attempt to concurrently call this
   712      *                               method during a marshal operation.
   713      */
   714     void setAttachmentMarshaller(AttachmentMarshaller am);
   716     AttachmentMarshaller getAttachmentMarshaller();
   718     /**
   719      * Specify the JAXP 1.3 {@link javax.xml.validation.Schema Schema}
   720      * object that should be used to validate subsequent marshal operations
   721      * against.  Passing null into this method will disable validation.
   722      *
   723      * <p>
   724      * This method allows the caller to validate the marshalled XML as it's marshalled.
   725      *
   726      * <p>
   727      * Initially this property is set to <tt>null</tt>.
   728      *
   729      * @param schema Schema object to validate marshal operations against or null to disable validation
   730      * @throws UnsupportedOperationException could be thrown if this method is
   731      *         invoked on an Marshaller created from a JAXBContext referencing
   732      *         JAXB 1.0 mapped classes
   733      * @since JAXB2.0
   734      */
   735     public void setSchema( Schema schema );
   737     /**
   738      * Get the JAXP 1.3 {@link javax.xml.validation.Schema Schema} object
   739      * being used to perform marshal-time validation.  If there is no
   740      * Schema set on the marshaller, then this method will return null
   741      * indicating that marshal-time validation will not be performed.
   742      *
   743      * @return the Schema object being used to perform marshal-time
   744      *      validation or null if not present.
   745      * @throws UnsupportedOperationException could be thrown if this method is
   746      *         invoked on an Marshaller created from a JAXBContext referencing
   747      *         JAXB 1.0 mapped classes
   748      * @since JAXB2.0
   749      */
   750     public Schema getSchema();
   752     /**
   753      * <p/>
   754      * Register an instance of an implementation of this class with a {@link Marshaller} to externally listen
   755      * for marshal events.
   756      * <p/>
   757      * <p/>
   758      * This class enables pre and post processing of each marshalled object.
   759      * The event callbacks are called when marshalling from an instance that maps to an xml element or
   760      * complex type definition. The event callbacks are not called when marshalling from an instance of a
   761      * Java datatype that represents a simple type definition.
   762      * <p/>
   763      * <p/>
   764      * External listener is one of two different mechanisms for defining marshal event callbacks.
   765      * See <a href="Marshaller.html#marshalEventCallback">Marshal Event Callbacks</a> for an overview.
   766      *
   767      * @see Marshaller#setListener(Listener)
   768      * @see Marshaller#getListener()
   769      * @since JAXB2.0
   770      */
   771     public static abstract class Listener {
   772         /**
   773          * <p/>
   774          * Callback method invoked before marshalling from <tt>source</tt> to XML.
   775          * <p/>
   776          * <p/>
   777          * This method is invoked just before marshalling process starts to marshal <tt>source</tt>.
   778          * Note that if the class of <tt>source</tt> defines its own <tt>beforeMarshal</tt> method,
   779          * the class specific callback method is invoked just before this method is invoked.
   780          *
   781          * @param source instance of JAXB mapped class prior to marshalling from it.
   782          */
   783         public void beforeMarshal(Object source) {
   784         }
   786         /**
   787          * <p/>
   788          * Callback method invoked after marshalling <tt>source</tt> to XML.
   789          * <p/>
   790          * <p/>
   791          * This method is invoked after <tt>source</tt> and all its descendants have been marshalled.
   792          * Note that if the class of <tt>source</tt> defines its own <tt>afterMarshal</tt> method,
   793          * the class specific callback method is invoked just before this method is invoked.
   794          *
   795          * @param source instance of JAXB mapped class after marshalling it.
   796          */
   797         public void afterMarshal(Object source) {
   798         }
   799     }
   801     /**
   802      * <p>
   803      * Register marshal event callback {@link Listener} with this {@link Marshaller}.
   804      *
   805      * <p>
   806      * There is only one Listener per Marshaller. Setting a Listener replaces the previous set Listener.
   807      * One can unregister current Listener by setting listener to <tt>null</tt>.
   808      *
   809      * @param listener an instance of a class that implements {@link Listener}
   810      * @since JAXB2.0
   811      */
   812     public void setListener(Listener listener);
   814     /**
   815      * <p>Return {@link Listener} registered with this {@link Marshaller}.
   816      *
   817      * @return registered {@link Listener} or <code>null</code> if no Listener is registered with this Marshaller.
   818      * @since JAXB2.0
   819      */
   820     public Listener getListener();
   821 }

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