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

Fri, 04 Oct 2013 16:21:34 +0100

author
mkos
date
Fri, 04 Oct 2013 16:21:34 +0100
changeset 408
b0610cd08440
parent 397
b99d7e355d4b
child 637
9c07ef4934dd
permissions
-rw-r--r--

8025054: Update JAX-WS RI integration to 2.2.9-b130926.1035
Reviewed-by: chegar

ohair@286 1 /*
mkos@397 2 * Copyright (c) 2003, 2013, 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;
ohair@286 27
ohair@286 28 import javax.xml.bind.annotation.adapters.XmlAdapter;
ohair@286 29 import javax.xml.bind.attachment.AttachmentUnmarshaller;
ohair@286 30 import javax.xml.validation.Schema;
ohair@286 31 import java.io.Reader;
ohair@286 32
ohair@286 33 /**
ohair@286 34 * The <tt>Unmarshaller</tt> class governs the process of deserializing XML
ohair@286 35 * data into newly created Java content trees, optionally validating the XML
ohair@286 36 * data as it is unmarshalled. It provides an overloading of unmarshal methods
ohair@286 37 * for many different input kinds.
ohair@286 38 *
ohair@286 39 * <p>
ohair@286 40 * Unmarshalling from a File:
ohair@286 41 * <blockquote>
ohair@286 42 * <pre>
ohair@286 43 * JAXBContext jc = JAXBContext.newInstance( "com.acme.foo" );
ohair@286 44 * Unmarshaller u = jc.createUnmarshaller();
ohair@286 45 * Object o = u.unmarshal( new File( "nosferatu.xml" ) );
ohair@286 46 * </pre>
ohair@286 47 * </blockquote>
ohair@286 48 *
ohair@286 49 *
ohair@286 50 * <p>
ohair@286 51 * Unmarshalling from an InputStream:
ohair@286 52 * <blockquote>
ohair@286 53 * <pre>
ohair@286 54 * InputStream is = new FileInputStream( "nosferatu.xml" );
ohair@286 55 * JAXBContext jc = JAXBContext.newInstance( "com.acme.foo" );
ohair@286 56 * Unmarshaller u = jc.createUnmarshaller();
ohair@286 57 * Object o = u.unmarshal( is );
ohair@286 58 * </pre>
ohair@286 59 * </blockquote>
ohair@286 60 *
ohair@286 61 * <p>
ohair@286 62 * Unmarshalling from a URL:
ohair@286 63 * <blockquote>
ohair@286 64 * <pre>
ohair@286 65 * JAXBContext jc = JAXBContext.newInstance( "com.acme.foo" );
ohair@286 66 * Unmarshaller u = jc.createUnmarshaller();
ohair@286 67 * URL url = new URL( "http://beaker.east/nosferatu.xml" );
ohair@286 68 * Object o = u.unmarshal( url );
ohair@286 69 * </pre>
ohair@286 70 * </blockquote>
ohair@286 71 *
ohair@286 72 * <p>
ohair@286 73 * Unmarshalling from a StringBuffer using a
ohair@286 74 * <tt>javax.xml.transform.stream.StreamSource</tt>:
ohair@286 75 * <blockquote>
ohair@286 76 * <pre>
ohair@286 77 * JAXBContext jc = JAXBContext.newInstance( "com.acme.foo" );
ohair@286 78 * Unmarshaller u = jc.createUnmarshaller();
ohair@286 79 * StringBuffer xmlStr = new StringBuffer( "&lt;?xml version=&quot;1.0&quot;?&gt;..." );
ohair@286 80 * Object o = u.unmarshal( new StreamSource( new StringReader( xmlStr.toString() ) ) );
ohair@286 81 * </pre>
ohair@286 82 * </blockquote>
ohair@286 83 *
ohair@286 84 * <p>
ohair@286 85 * Unmarshalling from a <tt>org.w3c.dom.Node</tt>:
ohair@286 86 * <blockquote>
ohair@286 87 * <pre>
ohair@286 88 * JAXBContext jc = JAXBContext.newInstance( "com.acme.foo" );
ohair@286 89 * Unmarshaller u = jc.createUnmarshaller();
ohair@286 90 *
ohair@286 91 * DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
ohair@286 92 * dbf.setNamespaceAware(true);
ohair@286 93 * DocumentBuilder db = dbf.newDocumentBuilder();
ohair@286 94 * Document doc = db.parse(new File( "nosferatu.xml"));
ohair@286 95
ohair@286 96 * Object o = u.unmarshal( doc );
ohair@286 97 * </pre>
ohair@286 98 * </blockquote>
ohair@286 99 *
ohair@286 100 * <p>
ohair@286 101 * Unmarshalling from a <tt>javax.xml.transform.sax.SAXSource</tt> using a
ohair@286 102 * client specified validating SAX2.0 parser:
ohair@286 103 * <blockquote>
ohair@286 104 * <pre>
ohair@286 105 * // configure a validating SAX2.0 parser (Xerces2)
ohair@286 106 * static final String JAXP_SCHEMA_LANGUAGE =
ohair@286 107 * "http://java.sun.com/xml/jaxp/properties/schemaLanguage";
ohair@286 108 * static final String JAXP_SCHEMA_LOCATION =
ohair@286 109 * "http://java.sun.com/xml/jaxp/properties/schemaSource";
ohair@286 110 * static final String W3C_XML_SCHEMA =
ohair@286 111 * "http://www.w3.org/2001/XMLSchema";
ohair@286 112 *
ohair@286 113 * System.setProperty( "javax.xml.parsers.SAXParserFactory",
ohair@286 114 * "org.apache.xerces.jaxp.SAXParserFactoryImpl" );
ohair@286 115 *
ohair@286 116 * SAXParserFactory spf = SAXParserFactory.newInstance();
ohair@286 117 * spf.setNamespaceAware(true);
ohair@286 118 * spf.setValidating(true);
ohair@286 119 * SAXParser saxParser = spf.newSAXParser();
ohair@286 120 *
ohair@286 121 * try {
ohair@286 122 * saxParser.setProperty(JAXP_SCHEMA_LANGUAGE, W3C_XML_SCHEMA);
ohair@286 123 * saxParser.setProperty(JAXP_SCHEMA_LOCATION, "http://....");
ohair@286 124 * } catch (SAXNotRecognizedException x) {
ohair@286 125 * // exception handling omitted
ohair@286 126 * }
ohair@286 127 *
ohair@286 128 * XMLReader xmlReader = saxParser.getXMLReader();
ohair@286 129 * SAXSource source =
ohair@286 130 * new SAXSource( xmlReader, new InputSource( "http://..." ) );
ohair@286 131 *
ohair@286 132 * // Setup JAXB to unmarshal
ohair@286 133 * JAXBContext jc = JAXBContext.newInstance( "com.acme.foo" );
ohair@286 134 * Unmarshaller u = jc.createUnmarshaller();
ohair@286 135 * ValidationEventCollector vec = new ValidationEventCollector();
ohair@286 136 * u.setEventHandler( vec );
ohair@286 137 *
ohair@286 138 * // turn off the JAXB provider's default validation mechanism to
ohair@286 139 * // avoid duplicate validation
ohair@286 140 * u.setValidating( false )
ohair@286 141 *
ohair@286 142 * // unmarshal
ohair@286 143 * Object o = u.unmarshal( source );
ohair@286 144 *
ohair@286 145 * // check for events
ohair@286 146 * if( vec.hasEvents() ) {
ohair@286 147 * // iterate over events
ohair@286 148 * }
ohair@286 149 * </pre>
ohair@286 150 * </blockquote>
ohair@286 151 *
ohair@286 152 * <p>
ohair@286 153 * Unmarshalling from a StAX XMLStreamReader:
ohair@286 154 * <blockquote>
ohair@286 155 * <pre>
ohair@286 156 * JAXBContext jc = JAXBContext.newInstance( "com.acme.foo" );
ohair@286 157 * Unmarshaller u = jc.createUnmarshaller();
ohair@286 158 *
ohair@286 159 * javax.xml.stream.XMLStreamReader xmlStreamReader =
ohair@286 160 * javax.xml.stream.XMLInputFactory().newInstance().createXMLStreamReader( ... );
ohair@286 161 *
ohair@286 162 * Object o = u.unmarshal( xmlStreamReader );
ohair@286 163 * </pre>
ohair@286 164 * </blockquote>
ohair@286 165 *
ohair@286 166 * <p>
ohair@286 167 * Unmarshalling from a StAX XMLEventReader:
ohair@286 168 * <blockquote>
ohair@286 169 * <pre>
ohair@286 170 * JAXBContext jc = JAXBContext.newInstance( "com.acme.foo" );
ohair@286 171 * Unmarshaller u = jc.createUnmarshaller();
ohair@286 172 *
ohair@286 173 * javax.xml.stream.XMLEventReader xmlEventReader =
ohair@286 174 * javax.xml.stream.XMLInputFactory().newInstance().createXMLEventReader( ... );
ohair@286 175 *
ohair@286 176 * Object o = u.unmarshal( xmlEventReader );
ohair@286 177 * </pre>
ohair@286 178 * </blockquote>
ohair@286 179 *
ohair@286 180 * <p>
ohair@286 181 * <a name="unmarshalEx"></a>
ohair@286 182 * <b>Unmarshalling XML Data</b><br>
ohair@286 183 * <blockquote>
ohair@286 184 * Unmarshalling can deserialize XML data that represents either an entire XML document
ohair@286 185 * or a subtree of an XML document. Typically, it is sufficient to use the
ohair@286 186 * unmarshalling methods described by
ohair@286 187 * <a href="#unmarshalGlobal">Unmarshal root element that is declared globally</a>.
ohair@286 188 * These unmarshal methods utilize {@link JAXBContext}'s mapping of global XML element
ohair@286 189 * declarations and type definitions to JAXB mapped classes to initiate the
ohair@286 190 * unmarshalling of the root element of XML data. When the {@link JAXBContext}'s
ohair@286 191 * mappings are not sufficient to unmarshal the root element of XML data,
ohair@286 192 * the application can assist the unmarshalling process by using the
ohair@286 193 * <a href="#unmarshalByDeclaredType">unmarshal by declaredType methods</a>.
ohair@286 194 * These methods are useful for unmarshalling XML data where
ohair@286 195 * the root element corresponds to a local element declaration in the schema.
ohair@286 196 * </blockquote>
ohair@286 197 *
ohair@286 198 * <blockquote>
ohair@286 199 * An unmarshal method never returns null. If the unmarshal process is unable to unmarshal
ohair@286 200 * the root of XML content to a JAXB mapped object, a fatal error is reported that
ohair@286 201 * terminates processing by throwing JAXBException.
ohair@286 202 * </blockquote>
ohair@286 203 *
ohair@286 204 * <p>
ohair@286 205 * <a name="unmarshalGlobal"></a>
ohair@286 206 * <b>Unmarshal a root element that is globally declared</b><br>
ohair@286 207 * <blockquote>
ohair@286 208 * The unmarshal methods that do not have an <tt>declaredType</tt> parameter use
ohair@286 209 * {@link JAXBContext} to unmarshal the root element of an XML data. The {@link JAXBContext}
ohair@286 210 * instance is the one that was used to create this <tt>Unmarshaller</tt>. The {@link JAXBContext}
ohair@286 211 * instance maintains a mapping of globally declared XML element and type definition names to
ohair@286 212 * JAXB mapped classes. The unmarshal method checks if {@link JAXBContext} has a mapping
ohair@286 213 * from the root element's XML name and/or <tt>@xsi:type</tt> to a JAXB mapped class. If it does, it umarshalls the
ohair@286 214 * XML data using the appropriate JAXB mapped class. Note that when the root element name is unknown and the root
ohair@286 215 * element has an <tt>@xsi:type</tt>, the XML data is unmarshalled
ohair@286 216 * using that JAXB mapped class as the value of a {@link JAXBElement}.
ohair@286 217 * When the {@link JAXBContext} object does not have a mapping for the root element's name
ohair@286 218 * nor its <tt>@xsi:type</tt>, if it exists,
ohair@286 219 * then the unmarshal operation will abort immediately by throwing a {@link UnmarshalException
ohair@286 220 * UnmarshalException}. This exception scenario can be worked around by using the unmarshal by
ohair@286 221 * declaredType methods described in the next subsection.
ohair@286 222 * </blockquote>
ohair@286 223 *
ohair@286 224 * <p>
ohair@286 225 * <a name="unmarshalByDeclaredType"></a>
ohair@286 226 * <b>Unmarshal by Declared Type</b><br>
ohair@286 227 * <blockquote>
ohair@286 228 * The unmarshal methods with a <code>declaredType</code> parameter enable an
ohair@286 229 * application to deserialize a root element of XML data, even when
ohair@286 230 * there is no mapping in {@link JAXBContext} of the root element's XML name.
ohair@286 231 * The unmarshaller unmarshals the root element using the application provided
ohair@286 232 * mapping specified as the <tt>declaredType</tt> parameter.
ohair@286 233 * Note that even when the root element's element name is mapped by {@link JAXBContext},
ohair@286 234 * the <code>declaredType</code> parameter overrides that mapping for
ohair@286 235 * deserializing the root element when using these unmarshal methods.
ohair@286 236 * Additionally, when the root element of XML data has an <tt>xsi:type</tt> attribute and
ohair@286 237 * that attribute's value references a type definition that is mapped
ohair@286 238 * to a JAXB mapped class by {@link JAXBContext}, that the root
ohair@286 239 * element's <tt>xsi:type</tt> attribute takes
ohair@286 240 * precedence over the unmarshal methods <tt>declaredType</tt> parameter.
ohair@286 241 * These methods always return a <tt>JAXBElement&lt;declaredType></tt>
ohair@286 242 * instance. The table below shows how the properties of the returned JAXBElement
ohair@286 243 * instance are set.
ohair@286 244 *
ohair@286 245 * <a name="unmarshalDeclaredTypeReturn"></a>
ohair@286 246 * <p>
ohair@286 247 * <table border="2" rules="all" cellpadding="4">
ohair@286 248 * <thead>
ohair@286 249 * <tr>
ohair@286 250 * <th align="center" colspan="2">
ohair@286 251 * Unmarshal By Declared Type returned JAXBElement
ohair@286 252 * </tr>
ohair@286 253 * <tr>
ohair@286 254 * <th>JAXBElement Property</th>
ohair@286 255 * <th>Value</th>
ohair@286 256 * </tr>
ohair@286 257 * <tr>
ohair@286 258 * <td>name</td>
ohair@286 259 * <td><code>xml element name</code></td>
ohair@286 260 * </tr>
ohair@286 261 * </thead>
ohair@286 262 * <tbody>
ohair@286 263 * <tr>
ohair@286 264 * <td>value</td>
ohair@286 265 * <td><code>instanceof declaredType</code></td>
ohair@286 266 * </tr>
ohair@286 267 * <tr>
ohair@286 268 * <td>declaredType</td>
ohair@286 269 * <td>unmarshal method <code>declaredType</code> parameter</td>
ohair@286 270 * </tr>
ohair@286 271 * <tr>
ohair@286 272 * <td>scope</td>
ohair@286 273 * <td><code>null</code> <i>(actual scope is unknown)</i></td>
ohair@286 274 * </tr>
ohair@286 275 * </tbody>
ohair@286 276 * </table>
ohair@286 277 * </blockquote>
ohair@286 278 *
ohair@286 279 * <p>
ohair@286 280 * The following is an example of
ohair@286 281 * <a href="#unmarshalByDeclaredType">unmarshal by declaredType method</a>.
ohair@286 282 * <p>
ohair@286 283 * Unmarshal by declaredType from a <tt>org.w3c.dom.Node</tt>:
ohair@286 284 * <blockquote>
ohair@286 285 * <pre>
ohair@286 286 * Schema fragment for example
ohair@286 287 * &lt;xs:schema>
ohair@286 288 * &lt;xs:complexType name="FooType">...&lt;\xs:complexType>
ohair@286 289 * &lt;!-- global element declaration "PurchaseOrder" -->
ohair@286 290 * &lt;xs:element name="PurchaseOrder">
ohair@286 291 * &lt;xs:complexType>
ohair@286 292 * &lt;xs:sequence>
ohair@286 293 * &lt;!-- local element declaration "foo" -->
ohair@286 294 * &lt;xs:element name="foo" type="FooType"/>
ohair@286 295 * ...
ohair@286 296 * &lt;/xs:sequence>
ohair@286 297 * &lt;/xs:complexType>
ohair@286 298 * &lt;/xs:element>
ohair@286 299 * &lt;/xs:schema>
ohair@286 300 *
ohair@286 301 * JAXBContext jc = JAXBContext.newInstance( "com.acme.foo" );
ohair@286 302 * Unmarshaller u = jc.createUnmarshaller();
ohair@286 303 *
ohair@286 304 * DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
ohair@286 305 * dbf.setNamespaceAware(true);
ohair@286 306 * DocumentBuilder db = dbf.newDocumentBuilder();
ohair@286 307 * Document doc = db.parse(new File( "nosferatu.xml"));
ohair@286 308 * Element fooSubtree = ...; // traverse DOM till reach xml element foo, constrained by a
ohair@286 309 * // local element declaration in schema.
ohair@286 310 *
ohair@286 311 * // FooType is the JAXB mapping of the type of local element declaration foo.
ohair@286 312 * JAXBElement&lt;FooType> foo = u.unmarshal( fooSubtree, FooType.class);
ohair@286 313 * </pre>
ohair@286 314 * </blockquote>
ohair@286 315 *
ohair@286 316 * <p>
ohair@286 317 * <b>Support for SAX2.0 Compliant Parsers</b><br>
ohair@286 318 * <blockquote>
ohair@286 319 * A client application has the ability to select the SAX2.0 compliant parser
ohair@286 320 * of their choice. If a SAX parser is not selected, then the JAXB Provider's
ohair@286 321 * default parser will be used. Even though the JAXB Provider's default parser
ohair@286 322 * is not required to be SAX2.0 compliant, all providers are required to allow
ohair@286 323 * a client application to specify their own SAX2.0 parser. Some providers may
ohair@286 324 * require the client application to specify the SAX2.0 parser at schema compile
ohair@286 325 * time. See {@link #unmarshal(javax.xml.transform.Source) unmarshal(Source)}
ohair@286 326 * for more detail.
ohair@286 327 * </blockquote>
ohair@286 328 *
ohair@286 329 * <p>
ohair@286 330 * <b>Validation and Well-Formedness</b><br>
ohair@286 331 * <blockquote>
ohair@286 332 * <p>
ohair@286 333 * A client application can enable or disable JAXP 1.3 validation
ohair@286 334 * mechanism via the <tt>setSchema(javax.xml.validation.Schema)</tt> API.
ohair@286 335 * Sophisticated clients can specify their own validating SAX 2.0 compliant
ohair@286 336 * parser and bypass the JAXP 1.3 validation mechanism using the
ohair@286 337 * {@link #unmarshal(javax.xml.transform.Source) unmarshal(Source)} API.
ohair@286 338 *
ohair@286 339 * <p>
ohair@286 340 * Since unmarshalling invalid XML content is defined in JAXB 2.0,
ohair@286 341 * the Unmarshaller default validation event handler was made more lenient
ohair@286 342 * than in JAXB 1.0. When schema-derived code generated
ohair@286 343 * by JAXB 1.0 binding compiler is registered with {@link JAXBContext},
ohair@286 344 * the default unmarshal validation handler is
ohair@286 345 * {@link javax.xml.bind.helpers.DefaultValidationEventHandler} and it
ohair@286 346 * terminates the marshal operation after encountering either a fatal error or an error.
ohair@286 347 * For a JAXB 2.0 client application, there is no explicitly defined default
ohair@286 348 * validation handler and the default event handling only
alanb@368 349 * terminates the unmarshal operation after encountering a fatal error.
ohair@286 350 *
ohair@286 351 * </blockquote>
ohair@286 352 *
ohair@286 353 * <p>
ohair@286 354 * <a name="supportedProps"></a>
ohair@286 355 * <b>Supported Properties</b><br>
ohair@286 356 * <blockquote>
ohair@286 357 * <p>
ohair@286 358 * There currently are not any properties required to be supported by all
ohair@286 359 * JAXB Providers on Unmarshaller. However, some providers may support
ohair@286 360 * their own set of provider specific properties.
ohair@286 361 * </blockquote>
ohair@286 362 *
ohair@286 363 * <p>
ohair@286 364 * <a name="unmarshalEventCallback"></a>
ohair@286 365 * <b>Unmarshal Event Callbacks</b><br>
ohair@286 366 * <blockquote>
ohair@286 367 * The {@link Unmarshaller} provides two styles of callback mechanisms
ohair@286 368 * that allow application specific processing during key points in the
ohair@286 369 * unmarshalling process. In 'class defined' event callbacks, application
ohair@286 370 * specific code placed in JAXB mapped classes is triggered during
ohair@286 371 * unmarshalling. 'External listeners' allow for centralized processing
ohair@286 372 * of unmarshal events in one callback method rather than by type event callbacks.
ohair@286 373 * <p>
ohair@286 374 * 'Class defined' event callback methods allow any JAXB mapped class to specify
ohair@286 375 * its own specific callback methods by defining methods with the following method signature:
ohair@286 376 * <blockquote>
ohair@286 377 * <pre>
ohair@286 378 * // This method is called immediately after the object is created and before the unmarshalling of this
ohair@286 379 * // object begins. The callback provides an opportunity to initialize JavaBean properties prior to unmarshalling.
ohair@286 380 * void beforeUnmarshal(Unmarshaller, Object parent);
ohair@286 381 *
ohair@286 382 * //This method is called after all the properties (except IDREF) are unmarshalled for this object,
ohair@286 383 * //but before this object is set to the parent object.
ohair@286 384 * void afterUnmarshal(Unmarshaller, Object parent);
ohair@286 385 * </pre>
ohair@286 386 * </blockquote>
ohair@286 387 * The class defined callback methods should be used when the callback method requires
ohair@286 388 * access to non-public methods and/or fields of the class.
ohair@286 389 * <p>
ohair@286 390 * The external listener callback mechanism enables the registration of a {@link Listener}
ohair@286 391 * instance with an {@link Unmarshaller#setListener(Listener)}. The external listener receives all callback events,
ohair@286 392 * allowing for more centralized processing than per class defined callback methods. The external listener
ohair@286 393 * receives events when unmarshalling proces is marshalling to a JAXB element or to JAXB mapped class.
ohair@286 394 * <p>
ohair@286 395 * The 'class defined' and external listener event callback methods are independent of each other,
ohair@286 396 * both can be called for one event. The invocation ordering when both listener callback methods exist is
ohair@286 397 * defined in {@link Listener#beforeUnmarshal(Object, Object)} and {@link Listener#afterUnmarshal(Object, Object)}.
ohair@286 398 * <p>
ohair@286 399 * An event callback method throwing an exception terminates the current unmarshal process.
ohair@286 400 *
ohair@286 401 * </blockquote>
ohair@286 402 *
ohair@286 403 * @author <ul><li>Ryan Shoemaker, Sun Microsystems, Inc.</li><li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li><li>Joe Fialli, Sun Microsystems, Inc.</li></ul>
ohair@286 404 * @see JAXBContext
ohair@286 405 * @see Marshaller
ohair@286 406 * @see Validator
ohair@286 407 * @since JAXB1.0
ohair@286 408 */
ohair@286 409 public interface Unmarshaller {
ohair@286 410
ohair@286 411 /**
ohair@286 412 * Unmarshal XML data from the specified file and return the resulting
ohair@286 413 * content tree.
ohair@286 414 *
ohair@286 415 * <p>
ohair@286 416 * Implements <a href="#unmarshalGlobal">Unmarshal Global Root Element</a>.
ohair@286 417 *
ohair@286 418 * @param f the file to unmarshal XML data from
ohair@286 419 * @return the newly created root object of the java content tree
ohair@286 420 *
ohair@286 421 * @throws JAXBException
ohair@286 422 * If any unexpected errors occur while unmarshalling
ohair@286 423 * @throws UnmarshalException
ohair@286 424 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 425 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 426 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 427 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 428 * @throws IllegalArgumentException
ohair@286 429 * If the file parameter is null
ohair@286 430 */
ohair@286 431 public Object unmarshal( java.io.File f ) throws JAXBException;
ohair@286 432
ohair@286 433 /**
ohair@286 434 * Unmarshal XML data from the specified InputStream and return the
ohair@286 435 * resulting content tree. Validation event location information may
ohair@286 436 * be incomplete when using this form of the unmarshal API.
ohair@286 437 *
ohair@286 438 * <p>
ohair@286 439 * Implements <a href="#unmarshalGlobal">Unmarshal Global Root Element</a>.
ohair@286 440 *
ohair@286 441 * @param is the InputStream to unmarshal XML data from
ohair@286 442 * @return the newly created root object of the java content tree
ohair@286 443 *
ohair@286 444 * @throws JAXBException
ohair@286 445 * If any unexpected errors occur while unmarshalling
ohair@286 446 * @throws UnmarshalException
ohair@286 447 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 448 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 449 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 450 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 451 * @throws IllegalArgumentException
ohair@286 452 * If the InputStream parameter is null
ohair@286 453 */
ohair@286 454 public Object unmarshal( java.io.InputStream is ) throws JAXBException;
ohair@286 455
ohair@286 456 /**
ohair@286 457 * Unmarshal XML data from the specified Reader and return the
ohair@286 458 * resulting content tree. Validation event location information may
ohair@286 459 * be incomplete when using this form of the unmarshal API,
ohair@286 460 * because a Reader does not provide the system ID.
ohair@286 461 *
ohair@286 462 * <p>
ohair@286 463 * Implements <a href="#unmarshalGlobal">Unmarshal Global Root Element</a>.
ohair@286 464 *
ohair@286 465 * @param reader the Reader to unmarshal XML data from
ohair@286 466 * @return the newly created root object of the java content tree
ohair@286 467 *
ohair@286 468 * @throws JAXBException
ohair@286 469 * If any unexpected errors occur while unmarshalling
ohair@286 470 * @throws UnmarshalException
ohair@286 471 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 472 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 473 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 474 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 475 * @throws IllegalArgumentException
ohair@286 476 * If the InputStream parameter is null
ohair@286 477 * @since JAXB2.0
ohair@286 478 */
ohair@286 479 public Object unmarshal( Reader reader ) throws JAXBException;
ohair@286 480
ohair@286 481 /**
ohair@286 482 * Unmarshal XML data from the specified URL and return the resulting
ohair@286 483 * content tree.
ohair@286 484 *
ohair@286 485 * <p>
ohair@286 486 * Implements <a href="#unmarshalGlobal">Unmarshal Global Root Element</a>.
ohair@286 487 *
ohair@286 488 * @param url the url to unmarshal XML data from
ohair@286 489 * @return the newly created root object of the java content tree
ohair@286 490 *
ohair@286 491 * @throws JAXBException
ohair@286 492 * If any unexpected errors occur while unmarshalling
ohair@286 493 * @throws UnmarshalException
ohair@286 494 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 495 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 496 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 497 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 498 * @throws IllegalArgumentException
ohair@286 499 * If the URL parameter is null
ohair@286 500 */
ohair@286 501 public Object unmarshal( java.net.URL url ) throws JAXBException;
ohair@286 502
ohair@286 503 /**
ohair@286 504 * Unmarshal XML data from the specified SAX InputSource and return the
ohair@286 505 * resulting content tree.
ohair@286 506 *
ohair@286 507 * <p>
ohair@286 508 * Implements <a href="#unmarshalGlobal">Unmarshal Global Root Element</a>.
ohair@286 509 *
ohair@286 510 * @param source the input source to unmarshal XML data from
ohair@286 511 * @return the newly created root object of the java content tree
ohair@286 512 *
ohair@286 513 * @throws JAXBException
ohair@286 514 * If any unexpected errors occur while unmarshalling
ohair@286 515 * @throws UnmarshalException
ohair@286 516 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 517 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 518 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 519 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 520 * @throws IllegalArgumentException
ohair@286 521 * If the InputSource parameter is null
ohair@286 522 */
ohair@286 523 public Object unmarshal( org.xml.sax.InputSource source ) throws JAXBException;
ohair@286 524
ohair@286 525 /**
ohair@286 526 * Unmarshal global XML data from the specified DOM tree and return the resulting
ohair@286 527 * content tree.
ohair@286 528 *
ohair@286 529 * <p>
ohair@286 530 * Implements <a href="#unmarshalGlobal">Unmarshal Global Root Element</a>.
ohair@286 531 *
ohair@286 532 * @param node
ohair@286 533 * the document/element to unmarshal XML data from.
ohair@286 534 * The caller must support at least Document and Element.
ohair@286 535 * @return the newly created root object of the java content tree
ohair@286 536 *
ohair@286 537 * @throws JAXBException
ohair@286 538 * If any unexpected errors occur while unmarshalling
ohair@286 539 * @throws UnmarshalException
ohair@286 540 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 541 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 542 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 543 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 544 * @throws IllegalArgumentException
ohair@286 545 * If the Node parameter is null
ohair@286 546 * @see #unmarshal(org.w3c.dom.Node, Class)
ohair@286 547 */
ohair@286 548 public Object unmarshal( org.w3c.dom.Node node ) throws JAXBException;
ohair@286 549
ohair@286 550 /**
ohair@286 551 * Unmarshal XML data by JAXB mapped <tt>declaredType</tt>
ohair@286 552 * and return the resulting content tree.
ohair@286 553 *
ohair@286 554 * <p>
ohair@286 555 * Implements <a href="#unmarshalByDeclaredType">Unmarshal by Declared Type</a>
ohair@286 556 *
ohair@286 557 * @param node
ohair@286 558 * the document/element to unmarshal XML data from.
ohair@286 559 * The caller must support at least Document and Element.
ohair@286 560 * @param declaredType
ohair@286 561 * appropriate JAXB mapped class to hold <tt>node</tt>'s XML data.
ohair@286 562 *
ohair@286 563 * @return <a href="#unmarshalDeclaredTypeReturn">JAXB Element</a> representation of <tt>node</tt>
ohair@286 564 *
ohair@286 565 * @throws JAXBException
ohair@286 566 * If any unexpected errors occur while unmarshalling
ohair@286 567 * @throws UnmarshalException
ohair@286 568 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 569 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 570 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 571 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 572 * @throws IllegalArgumentException
ohair@286 573 * If any parameter is null
ohair@286 574 * @since JAXB2.0
ohair@286 575 */
ohair@286 576 public <T> JAXBElement<T> unmarshal( org.w3c.dom.Node node, Class<T> declaredType ) throws JAXBException;
ohair@286 577
ohair@286 578 /**
ohair@286 579 * Unmarshal XML data from the specified XML Source and return the
ohair@286 580 * resulting content tree.
ohair@286 581 *
ohair@286 582 * <p>
ohair@286 583 * Implements <a href="#unmarshalGlobal">Unmarshal Global Root Element</a>.
ohair@286 584 *
ohair@286 585 * <p>
ohair@286 586 * <a name="saxParserPlugable"></a>
ohair@286 587 * <b>SAX 2.0 Parser Pluggability</b>
ohair@286 588 * <p>
ohair@286 589 * A client application can choose not to use the default parser mechanism
ohair@286 590 * supplied with their JAXB provider. Any SAX 2.0 compliant parser can be
ohair@286 591 * substituted for the JAXB provider's default mechanism. To do so, the
ohair@286 592 * client application must properly configure a <tt>SAXSource</tt> containing
ohair@286 593 * an <tt>XMLReader</tt> implemented by the SAX 2.0 parser provider. If the
ohair@286 594 * <tt>XMLReader</tt> has an <tt>org.xml.sax.ErrorHandler</tt> registered
ohair@286 595 * on it, it will be replaced by the JAXB Provider so that validation errors
ohair@286 596 * can be reported via the <tt>ValidationEventHandler</tt> mechanism of
ohair@286 597 * JAXB. If the <tt>SAXSource</tt> does not contain an <tt>XMLReader</tt>,
ohair@286 598 * then the JAXB provider's default parser mechanism will be used.
ohair@286 599 * <p>
ohair@286 600 * This parser replacement mechanism can also be used to replace the JAXB
ohair@286 601 * provider's unmarshal-time validation engine. The client application
ohair@286 602 * must properly configure their SAX 2.0 compliant parser to perform
ohair@286 603 * validation (as shown in the example above). Any <tt>SAXParserExceptions
ohair@286 604 * </tt> encountered by the parser during the unmarshal operation will be
ohair@286 605 * processed by the JAXB provider and converted into JAXB
ohair@286 606 * <tt>ValidationEvent</tt> objects which will be reported back to the
ohair@286 607 * client via the <tt>ValidationEventHandler</tt> registered with the
ohair@286 608 * <tt>Unmarshaller</tt>. <i>Note:</i> specifying a substitute validating
ohair@286 609 * SAX 2.0 parser for unmarshalling does not necessarily replace the
ohair@286 610 * validation engine used by the JAXB provider for performing on-demand
ohair@286 611 * validation.
ohair@286 612 * <p>
ohair@286 613 * The only way for a client application to specify an alternate parser
ohair@286 614 * mechanism to be used during unmarshal is via the
ohair@286 615 * <tt>unmarshal(SAXSource)</tt> API. All other forms of the unmarshal
ohair@286 616 * method (File, URL, Node, etc) will use the JAXB provider's default
ohair@286 617 * parser and validator mechanisms.
ohair@286 618 *
ohair@286 619 * @param source the XML Source to unmarshal XML data from (providers are
ohair@286 620 * only required to support SAXSource, DOMSource, and StreamSource)
ohair@286 621 * @return the newly created root object of the java content tree
ohair@286 622 *
ohair@286 623 * @throws JAXBException
ohair@286 624 * If any unexpected errors occur while unmarshalling
ohair@286 625 * @throws UnmarshalException
ohair@286 626 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 627 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 628 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 629 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 630 * @throws IllegalArgumentException
ohair@286 631 * If the Source parameter is null
ohair@286 632 * @see #unmarshal(javax.xml.transform.Source, Class)
ohair@286 633 */
ohair@286 634 public Object unmarshal( javax.xml.transform.Source source )
ohair@286 635 throws JAXBException;
ohair@286 636
ohair@286 637
ohair@286 638 /**
ohair@286 639 * Unmarshal XML data from the specified XML Source by <tt>declaredType</tt> and return the
ohair@286 640 * resulting content tree.
ohair@286 641 *
ohair@286 642 * <p>
ohair@286 643 * Implements <a href="#unmarshalByDeclaredType">Unmarshal by Declared Type</a>
ohair@286 644 *
ohair@286 645 * <p>
ohair@286 646 * See <a href="#saxParserPlugable">SAX 2.0 Parser Pluggability</a>
ohair@286 647 *
ohair@286 648 * @param source the XML Source to unmarshal XML data from (providers are
ohair@286 649 * only required to support SAXSource, DOMSource, and StreamSource)
ohair@286 650 * @param declaredType
ohair@286 651 * appropriate JAXB mapped class to hold <tt>source</tt>'s xml root element
ohair@286 652 * @return Java content rooted by <a href="#unmarshalDeclaredTypeReturn">JAXB Element</a>
ohair@286 653 *
ohair@286 654 * @throws JAXBException
ohair@286 655 * If any unexpected errors occur while unmarshalling
ohair@286 656 * @throws UnmarshalException
ohair@286 657 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 658 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 659 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 660 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 661 * @throws IllegalArgumentException
ohair@286 662 * If any parameter is null
ohair@286 663 * @since JAXB2.0
ohair@286 664 */
ohair@286 665 public <T> JAXBElement<T> unmarshal( javax.xml.transform.Source source, Class<T> declaredType )
ohair@286 666 throws JAXBException;
ohair@286 667
ohair@286 668 /**
ohair@286 669 * Unmarshal XML data from the specified pull parser and return the
ohair@286 670 * resulting content tree.
ohair@286 671 *
ohair@286 672 * <p>
ohair@286 673 * Implements <a href="#unmarshalGlobal">Unmarshal Global Root Element</a>.
ohair@286 674 *
ohair@286 675 * <p>
ohair@286 676 * This method assumes that the parser is on a START_DOCUMENT or
ohair@286 677 * START_ELEMENT event. Unmarshalling will be done from this
ohair@286 678 * start event to the corresponding end event. If this method
ohair@286 679 * returns successfully, the <tt>reader</tt> will be pointing at
ohair@286 680 * the token right after the end event.
ohair@286 681 *
ohair@286 682 * @param reader
ohair@286 683 * The parser to be read.
ohair@286 684 * @return
ohair@286 685 * the newly created root object of the java content tree.
ohair@286 686 *
ohair@286 687 * @throws JAXBException
ohair@286 688 * If any unexpected errors occur while unmarshalling
ohair@286 689 * @throws UnmarshalException
ohair@286 690 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 691 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 692 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 693 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 694 * @throws IllegalArgumentException
ohair@286 695 * If the <tt>reader</tt> parameter is null
ohair@286 696 * @throws IllegalStateException
ohair@286 697 * If <tt>reader</tt> is not pointing to a START_DOCUMENT or
ohair@286 698 * START_ELEMENT event.
ohair@286 699 * @since JAXB2.0
ohair@286 700 * @see #unmarshal(javax.xml.stream.XMLStreamReader, Class)
ohair@286 701 */
ohair@286 702 public Object unmarshal( javax.xml.stream.XMLStreamReader reader )
ohair@286 703 throws JAXBException;
ohair@286 704
ohair@286 705 /**
ohair@286 706 * Unmarshal root element to JAXB mapped <tt>declaredType</tt>
ohair@286 707 * and return the resulting content tree.
ohair@286 708 *
ohair@286 709 * <p>
ohair@286 710 * This method implements <a href="#unmarshalByDeclaredType">unmarshal by declaredType</a>.
ohair@286 711 * <p>
ohair@286 712 * This method assumes that the parser is on a START_DOCUMENT or
ohair@286 713 * START_ELEMENT event. Unmarshalling will be done from this
ohair@286 714 * start event to the corresponding end event. If this method
ohair@286 715 * returns successfully, the <tt>reader</tt> will be pointing at
ohair@286 716 * the token right after the end event.
ohair@286 717 *
ohair@286 718 * @param reader
ohair@286 719 * The parser to be read.
ohair@286 720 * @param declaredType
ohair@286 721 * appropriate JAXB mapped class to hold <tt>reader</tt>'s START_ELEMENT XML data.
ohair@286 722 *
ohair@286 723 * @return content tree rooted by <a href="#unmarshalDeclaredTypeReturn">JAXB Element representation</a>
ohair@286 724 *
ohair@286 725 * @throws JAXBException
ohair@286 726 * If any unexpected errors occur while unmarshalling
ohair@286 727 * @throws UnmarshalException
ohair@286 728 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 729 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 730 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 731 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 732 * @throws IllegalArgumentException
ohair@286 733 * If any parameter is null
ohair@286 734 * @since JAXB2.0
ohair@286 735 */
ohair@286 736 public <T> JAXBElement<T> unmarshal( javax.xml.stream.XMLStreamReader reader, Class<T> declaredType ) throws JAXBException;
ohair@286 737
ohair@286 738 /**
ohair@286 739 * Unmarshal XML data from the specified pull parser and return the
ohair@286 740 * resulting content tree.
ohair@286 741 *
ohair@286 742 * <p>
ohair@286 743 * This method is an <a href="#unmarshalGlobal">Unmarshal Global Root method</a>.
ohair@286 744 *
ohair@286 745 * <p>
ohair@286 746 * This method assumes that the parser is on a START_DOCUMENT or
ohair@286 747 * START_ELEMENT event. Unmarshalling will be done from this
ohair@286 748 * start event to the corresponding end event. If this method
ohair@286 749 * returns successfully, the <tt>reader</tt> will be pointing at
ohair@286 750 * the token right after the end event.
ohair@286 751 *
ohair@286 752 * @param reader
ohair@286 753 * The parser to be read.
ohair@286 754 * @return
ohair@286 755 * the newly created root object of the java content tree.
ohair@286 756 *
ohair@286 757 * @throws JAXBException
ohair@286 758 * If any unexpected errors occur while unmarshalling
ohair@286 759 * @throws UnmarshalException
ohair@286 760 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 761 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 762 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 763 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 764 * @throws IllegalArgumentException
ohair@286 765 * If the <tt>reader</tt> parameter is null
ohair@286 766 * @throws IllegalStateException
ohair@286 767 * If <tt>reader</tt> is not pointing to a START_DOCUMENT or
ohair@286 768 * START_ELEMENT event.
ohair@286 769 * @since JAXB2.0
ohair@286 770 * @see #unmarshal(javax.xml.stream.XMLEventReader, Class)
ohair@286 771 */
ohair@286 772 public Object unmarshal( javax.xml.stream.XMLEventReader reader )
ohair@286 773 throws JAXBException;
ohair@286 774
ohair@286 775 /**
ohair@286 776 * Unmarshal root element to JAXB mapped <tt>declaredType</tt>
ohair@286 777 * and return the resulting content tree.
ohair@286 778 *
ohair@286 779 * <p>
ohair@286 780 * This method implements <a href="#unmarshalByDeclaredType">unmarshal by declaredType</a>.
ohair@286 781 *
ohair@286 782 * <p>
ohair@286 783 * This method assumes that the parser is on a START_DOCUMENT or
ohair@286 784 * START_ELEMENT event. Unmarshalling will be done from this
ohair@286 785 * start event to the corresponding end event. If this method
ohair@286 786 * returns successfully, the <tt>reader</tt> will be pointing at
ohair@286 787 * the token right after the end event.
ohair@286 788 *
ohair@286 789 * @param reader
ohair@286 790 * The parser to be read.
ohair@286 791 * @param declaredType
ohair@286 792 * appropriate JAXB mapped class to hold <tt>reader</tt>'s START_ELEMENT XML data.
ohair@286 793 *
ohair@286 794 * @return content tree rooted by <a href="#unmarshalDeclaredTypeReturn">JAXB Element representation</a>
ohair@286 795 *
ohair@286 796 * @throws JAXBException
ohair@286 797 * If any unexpected errors occur while unmarshalling
ohair@286 798 * @throws UnmarshalException
ohair@286 799 * If the {@link ValidationEventHandler ValidationEventHandler}
ohair@286 800 * returns false from its <tt>handleEvent</tt> method or the
ohair@286 801 * <tt>Unmarshaller</tt> is unable to perform the XML to Java
ohair@286 802 * binding. See <a href="#unmarshalEx">Unmarshalling XML Data</a>
ohair@286 803 * @throws IllegalArgumentException
ohair@286 804 * If any parameter is null
ohair@286 805 * @since JAXB2.0
ohair@286 806 */
ohair@286 807 public <T> JAXBElement<T> unmarshal( javax.xml.stream.XMLEventReader reader, Class<T> declaredType ) throws JAXBException;
ohair@286 808
ohair@286 809 /**
ohair@286 810 * Get an unmarshaller handler object that can be used as a component in
ohair@286 811 * an XML pipeline.
ohair@286 812 *
ohair@286 813 * <p>
ohair@286 814 * The JAXB Provider can return the same handler object for multiple
ohair@286 815 * invocations of this method. In other words, this method does not
ohair@286 816 * necessarily create a new instance of <tt>UnmarshallerHandler</tt>. If the
ohair@286 817 * application needs to use more than one <tt>UnmarshallerHandler</tt>, it
ohair@286 818 * should create more than one <tt>Unmarshaller</tt>.
ohair@286 819 *
ohair@286 820 * @return the unmarshaller handler object
ohair@286 821 * @see UnmarshallerHandler
ohair@286 822 */
ohair@286 823 public UnmarshallerHandler getUnmarshallerHandler();
ohair@286 824
ohair@286 825 /**
ohair@286 826 * Specifies whether or not the default validation mechanism of the
ohair@286 827 * <tt>Unmarshaller</tt> should validate during unmarshal operations.
ohair@286 828 * By default, the <tt>Unmarshaller</tt> does not validate.
ohair@286 829 * <p>
ohair@286 830 * This method may only be invoked before or after calling one of the
ohair@286 831 * unmarshal methods.
ohair@286 832 * <p>
ohair@286 833 * This method only controls the JAXB Provider's default unmarshal-time
ohair@286 834 * validation mechanism - it has no impact on clients that specify their
ohair@286 835 * own validating SAX 2.0 compliant parser. Clients that specify their
ohair@286 836 * own unmarshal-time validation mechanism may wish to turn off the JAXB
ohair@286 837 * Provider's default validation mechanism via this API to avoid "double
ohair@286 838 * validation".
ohair@286 839 * <p>
ohair@286 840 * This method is deprecated as of JAXB 2.0 - please use the new
ohair@286 841 * {@link #setSchema(javax.xml.validation.Schema)} API.
ohair@286 842 *
ohair@286 843 * @param validating true if the Unmarshaller should validate during
ohair@286 844 * unmarshal, false otherwise
ohair@286 845 * @throws JAXBException if an error occurred while enabling or disabling
ohair@286 846 * validation at unmarshal time
ohair@286 847 * @throws UnsupportedOperationException could be thrown if this method is
ohair@286 848 * invoked on an Unmarshaller created from a JAXBContext referencing
ohair@286 849 * JAXB 2.0 mapped classes
ohair@286 850 * @deprecated since JAXB2.0, please see {@link #setSchema(javax.xml.validation.Schema)}
ohair@286 851 */
ohair@286 852 public void setValidating( boolean validating )
ohair@286 853 throws JAXBException;
ohair@286 854
ohair@286 855 /**
ohair@286 856 * Indicates whether or not the <tt>Unmarshaller</tt> is configured to
ohair@286 857 * validate during unmarshal operations.
ohair@286 858 * <p>
ohair@286 859 * This API returns the state of the JAXB Provider's default unmarshal-time
ohair@286 860 * validation mechanism.
ohair@286 861 * <p>
ohair@286 862 * This method is deprecated as of JAXB 2.0 - please use the new
ohair@286 863 * {@link #getSchema()} API.
ohair@286 864 *
ohair@286 865 * @return true if the Unmarshaller is configured to validate during
ohair@286 866 * unmarshal operations, false otherwise
ohair@286 867 * @throws JAXBException if an error occurs while retrieving the validating
ohair@286 868 * flag
ohair@286 869 * @throws UnsupportedOperationException could be thrown if this method is
ohair@286 870 * invoked on an Unmarshaller created from a JAXBContext referencing
ohair@286 871 * JAXB 2.0 mapped classes
ohair@286 872 * @deprecated since JAXB2.0, please see {@link #getSchema()}
ohair@286 873 */
ohair@286 874 public boolean isValidating()
ohair@286 875 throws JAXBException;
ohair@286 876
ohair@286 877 /**
ohair@286 878 * Allow an application to register a <tt>ValidationEventHandler</tt>.
ohair@286 879 * <p>
ohair@286 880 * The <tt>ValidationEventHandler</tt> will be called by the JAXB Provider
ohair@286 881 * if any validation errors are encountered during calls to any of the
ohair@286 882 * unmarshal methods. If the client application does not register a
ohair@286 883 * <tt>ValidationEventHandler</tt> before invoking the unmarshal methods,
ohair@286 884 * then <tt>ValidationEvents</tt> will be handled by the default event
ohair@286 885 * handler which will terminate the unmarshal operation after the first
ohair@286 886 * error or fatal error is encountered.
ohair@286 887 * <p>
ohair@286 888 * Calling this method with a null parameter will cause the Unmarshaller
ohair@286 889 * to revert back to the default event handler.
ohair@286 890 *
ohair@286 891 * @param handler the validation event handler
ohair@286 892 * @throws JAXBException if an error was encountered while setting the
ohair@286 893 * event handler
ohair@286 894 */
ohair@286 895 public void setEventHandler( ValidationEventHandler handler )
ohair@286 896 throws JAXBException;
ohair@286 897
ohair@286 898 /**
ohair@286 899 * Return the current event handler or the default event handler if one
ohair@286 900 * hasn't been set.
ohair@286 901 *
ohair@286 902 * @return the current ValidationEventHandler or the default event handler
ohair@286 903 * if it hasn't been set
ohair@286 904 * @throws JAXBException if an error was encountered while getting the
ohair@286 905 * current event handler
ohair@286 906 */
ohair@286 907 public ValidationEventHandler getEventHandler()
ohair@286 908 throws JAXBException;
ohair@286 909
ohair@286 910 /**
ohair@286 911 * Set the particular property in the underlying implementation of
ohair@286 912 * <tt>Unmarshaller</tt>. This method can only be used to set one of
ohair@286 913 * the standard JAXB defined properties above or a provider specific
ohair@286 914 * property. Attempting to set an undefined property will result in
ohair@286 915 * a PropertyException being thrown. See <a href="#supportedProps">
ohair@286 916 * Supported Properties</a>.
ohair@286 917 *
ohair@286 918 * @param name the name of the property to be set. This value can either
ohair@286 919 * be specified using one of the constant fields or a user
ohair@286 920 * supplied string.
ohair@286 921 * @param value the value of the property to be set
ohair@286 922 *
ohair@286 923 * @throws PropertyException when there is an error processing the given
ohair@286 924 * property or value
ohair@286 925 * @throws IllegalArgumentException
ohair@286 926 * If the name parameter is null
ohair@286 927 */
ohair@286 928 public void setProperty( String name, Object value )
ohair@286 929 throws PropertyException;
ohair@286 930
ohair@286 931 /**
ohair@286 932 * Get the particular property in the underlying implementation of
ohair@286 933 * <tt>Unmarshaller</tt>. This method can only be used to get one of
ohair@286 934 * the standard JAXB defined properties above or a provider specific
ohair@286 935 * property. Attempting to get an undefined property will result in
ohair@286 936 * a PropertyException being thrown. See <a href="#supportedProps">
ohair@286 937 * Supported Properties</a>.
ohair@286 938 *
ohair@286 939 * @param name the name of the property to retrieve
ohair@286 940 * @return the value of the requested property
ohair@286 941 *
ohair@286 942 * @throws PropertyException
ohair@286 943 * when there is an error retrieving the given property or value
ohair@286 944 * property name
ohair@286 945 * @throws IllegalArgumentException
ohair@286 946 * If the name parameter is null
ohair@286 947 */
ohair@286 948 public Object getProperty( String name ) throws PropertyException;
ohair@286 949
ohair@286 950 /**
ohair@286 951 * Specify the JAXP 1.3 {@link javax.xml.validation.Schema Schema}
ohair@286 952 * object that should be used to validate subsequent unmarshal operations
ohair@286 953 * against. Passing null into this method will disable validation.
ohair@286 954 * <p>
ohair@286 955 * This method replaces the deprecated {@link #setValidating(boolean) setValidating(boolean)}
ohair@286 956 * API.
ohair@286 957 *
ohair@286 958 * <p>
ohair@286 959 * Initially this property is set to <tt>null</tt>.
ohair@286 960 *
ohair@286 961 * @param schema Schema object to validate unmarshal operations against or null to disable validation
ohair@286 962 * @throws UnsupportedOperationException could be thrown if this method is
ohair@286 963 * invoked on an Unmarshaller created from a JAXBContext referencing
ohair@286 964 * JAXB 1.0 mapped classes
ohair@286 965 * @since JAXB2.0
ohair@286 966 */
ohair@286 967 public void setSchema( javax.xml.validation.Schema schema );
ohair@286 968
ohair@286 969 /**
ohair@286 970 * Get the JAXP 1.3 {@link javax.xml.validation.Schema Schema} object
ohair@286 971 * being used to perform unmarshal-time validation. If there is no
ohair@286 972 * Schema set on the unmarshaller, then this method will return null
ohair@286 973 * indicating that unmarshal-time validation will not be performed.
ohair@286 974 * <p>
ohair@286 975 * This method provides replacement functionality for the deprecated
ohair@286 976 * {@link #isValidating()} API as well as access to the Schema object.
ohair@286 977 * To determine if the Unmarshaller has validation enabled, simply
ohair@286 978 * test the return type for null:
ohair@286 979 * <p>
ohair@286 980 * <code>
ohair@286 981 * boolean isValidating = u.getSchema()!=null;
ohair@286 982 * </code>
ohair@286 983 *
ohair@286 984 * @return the Schema object being used to perform unmarshal-time
ohair@286 985 * validation or null if not present
ohair@286 986 * @throws UnsupportedOperationException could be thrown if this method is
ohair@286 987 * invoked on an Unmarshaller created from a JAXBContext referencing
ohair@286 988 * JAXB 1.0 mapped classes
ohair@286 989 * @since JAXB2.0
ohair@286 990 */
ohair@286 991 public javax.xml.validation.Schema getSchema();
ohair@286 992
ohair@286 993 /**
ohair@286 994 * Associates a configured instance of {@link XmlAdapter} with this unmarshaller.
ohair@286 995 *
ohair@286 996 * <p>
ohair@286 997 * This is a convenience method that invokes <code>setAdapter(adapter.getClass(),adapter);</code>.
ohair@286 998 *
ohair@286 999 * @see #setAdapter(Class,XmlAdapter)
ohair@286 1000 * @throws IllegalArgumentException
ohair@286 1001 * if the adapter parameter is null.
ohair@286 1002 * @throws UnsupportedOperationException
ohair@286 1003 * if invoked agains a JAXB 1.0 implementation.
ohair@286 1004 * @since JAXB2.0
ohair@286 1005 */
ohair@286 1006 public void setAdapter( XmlAdapter adapter );
ohair@286 1007
ohair@286 1008 /**
ohair@286 1009 * Associates a configured instance of {@link XmlAdapter} with this unmarshaller.
ohair@286 1010 *
ohair@286 1011 * <p>
ohair@286 1012 * Every unmarshaller internally maintains a
ohair@286 1013 * {@link java.util.Map}&lt;{@link Class},{@link XmlAdapter}>,
ohair@286 1014 * which it uses for unmarshalling classes whose fields/methods are annotated
ohair@286 1015 * with {@link javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter}.
ohair@286 1016 *
ohair@286 1017 * <p>
ohair@286 1018 * This method allows applications to use a configured instance of {@link XmlAdapter}.
ohair@286 1019 * When an instance of an adapter is not given, an unmarshaller will create
ohair@286 1020 * one by invoking its default constructor.
ohair@286 1021 *
ohair@286 1022 * @param type
ohair@286 1023 * The type of the adapter. The specified instance will be used when
ohair@286 1024 * {@link javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter#value()}
ohair@286 1025 * refers to this type.
ohair@286 1026 * @param adapter
ohair@286 1027 * The instance of the adapter to be used. If null, it will un-register
ohair@286 1028 * the current adapter set for this type.
ohair@286 1029 * @throws IllegalArgumentException
ohair@286 1030 * if the type parameter is null.
ohair@286 1031 * @throws UnsupportedOperationException
ohair@286 1032 * if invoked agains a JAXB 1.0 implementation.
ohair@286 1033 * @since JAXB2.0
ohair@286 1034 */
ohair@286 1035 public <A extends XmlAdapter> void setAdapter( Class<A> type, A adapter );
ohair@286 1036
ohair@286 1037 /**
ohair@286 1038 * Gets the adapter associated with the specified type.
ohair@286 1039 *
ohair@286 1040 * This is the reverse operation of the {@link #setAdapter} method.
ohair@286 1041 *
ohair@286 1042 * @throws IllegalArgumentException
ohair@286 1043 * if the type parameter is null.
ohair@286 1044 * @throws UnsupportedOperationException
ohair@286 1045 * if invoked agains a JAXB 1.0 implementation.
ohair@286 1046 * @since JAXB2.0
ohair@286 1047 */
ohair@286 1048 public <A extends XmlAdapter> A getAdapter( Class<A> type );
ohair@286 1049
ohair@286 1050 /**
ohair@286 1051 * <p>Associate a context that resolves cid's, content-id URIs, to
ohair@286 1052 * binary data passed as attachments.</p>
ohair@286 1053 * <p/>
ohair@286 1054 * <p>Unmarshal time validation, enabled via {@link #setSchema(Schema)},
ohair@286 1055 * must be supported even when unmarshaller is performing XOP processing.
ohair@286 1056 * </p>
ohair@286 1057 *
ohair@286 1058 * @throws IllegalStateException if attempt to concurrently call this
ohair@286 1059 * method during a unmarshal operation.
ohair@286 1060 */
ohair@286 1061 void setAttachmentUnmarshaller(AttachmentUnmarshaller au);
ohair@286 1062
ohair@286 1063 AttachmentUnmarshaller getAttachmentUnmarshaller();
ohair@286 1064
ohair@286 1065 /**
ohair@286 1066 * <p/>
ohair@286 1067 * Register an instance of an implementation of this class with {@link Unmarshaller} to externally listen
ohair@286 1068 * for unmarshal events.
ohair@286 1069 * <p/>
ohair@286 1070 * <p/>
ohair@286 1071 * This class enables pre and post processing of an instance of a JAXB mapped class
ohair@286 1072 * as XML data is unmarshalled into it. The event callbacks are called when unmarshalling
ohair@286 1073 * XML content into a JAXBElement instance or a JAXB mapped class that represents a complex type definition.
ohair@286 1074 * The event callbacks are not called when unmarshalling to an instance of a
ohair@286 1075 * Java datatype that represents a simple type definition.
ohair@286 1076 * <p/>
ohair@286 1077 * <p/>
ohair@286 1078 * External listener is one of two different mechanisms for defining unmarshal event callbacks.
ohair@286 1079 * See <a href="Unmarshaller.html#unmarshalEventCallback">Unmarshal Event Callbacks</a> for an overview.
ohair@286 1080 * <p/>
ohair@286 1081 * (@link #setListener(Listener)}
ohair@286 1082 * (@link #getListener()}
ohair@286 1083 *
ohair@286 1084 * @since JAXB2.0
ohair@286 1085 */
ohair@286 1086 public static abstract class Listener {
ohair@286 1087 /**
ohair@286 1088 * <p/>
ohair@286 1089 * Callback method invoked before unmarshalling into <tt>target</tt>.
ohair@286 1090 * <p/>
ohair@286 1091 * <p/>
ohair@286 1092 * This method is invoked immediately after <tt>target</tt> was created and
ohair@286 1093 * before the unmarshalling of this object begins. Note that
ohair@286 1094 * if the class of <tt>target</tt> defines its own <tt>beforeUnmarshal</tt> method,
ohair@286 1095 * the class specific callback method is invoked before this method is invoked.
ohair@286 1096 *
ohair@286 1097 * @param target non-null instance of JAXB mapped class prior to unmarshalling into it.
ohair@286 1098 * @param parent instance of JAXB mapped class that will eventually reference <tt>target</tt>.
ohair@286 1099 * <tt>null</tt> when <tt>target</tt> is root element.
ohair@286 1100 */
ohair@286 1101 public void beforeUnmarshal(Object target, Object parent) {
ohair@286 1102 }
ohair@286 1103
ohair@286 1104 /**
ohair@286 1105 * <p/>
ohair@286 1106 * Callback method invoked after unmarshalling XML data into <tt>target</tt>.
ohair@286 1107 * <p/>
ohair@286 1108 * <p/>
ohair@286 1109 * This method is invoked after all the properties (except IDREF) are unmarshalled into <tt>target</tt>,
ohair@286 1110 * but before <tt>target</tt> is set into its <tt>parent</tt> object.
ohair@286 1111 * Note that if the class of <tt>target</tt> defines its own <tt>afterUnmarshal</tt> method,
ohair@286 1112 * the class specific callback method is invoked before this method is invoked.
ohair@286 1113 *
ohair@286 1114 * @param target non-null instance of JAXB mapped class prior to unmarshalling into it.
ohair@286 1115 * @param parent instance of JAXB mapped class that will reference <tt>target</tt>.
ohair@286 1116 * <tt>null</tt> when <tt>target</tt> is root element.
ohair@286 1117 */
ohair@286 1118 public void afterUnmarshal(Object target, Object parent) {
ohair@286 1119 }
ohair@286 1120 }
ohair@286 1121
ohair@286 1122 /**
ohair@286 1123 * <p>
ohair@286 1124 * Register unmarshal event callback {@link Listener} with this {@link Unmarshaller}.
ohair@286 1125 *
ohair@286 1126 * <p>
ohair@286 1127 * There is only one Listener per Unmarshaller. Setting a Listener replaces the previous set Listener.
ohair@286 1128 * One can unregister current Listener by setting listener to <tt>null</tt>.
ohair@286 1129 *
ohair@286 1130 * @param listener provides unmarshal event callbacks for this {@link Unmarshaller}
ohair@286 1131 * @since JAXB2.0
ohair@286 1132 */
ohair@286 1133 public void setListener(Listener listener);
ohair@286 1134
ohair@286 1135 /**
ohair@286 1136 * <p>Return {@link Listener} registered with this {@link Unmarshaller}.
ohair@286 1137 *
ohair@286 1138 * @return registered {@link Listener} or <code>null</code> if no Listener is registered with this Unmarshaller.
ohair@286 1139 * @since JAXB2.0
ohair@286 1140 */
ohair@286 1141 public Listener getListener();
ohair@286 1142 }

mercurial