Examples of org.jboss.xb.binding.ObjectModelFactory

org.jboss.xb.binding.ObjectModelFactory
All object model factories must implement this interface. Object model factories are used on unmarshalling to build an object graph that is a representation of the XML content unmarshalled.
Each object model factory must implement methods newRoot and completeRoot defined in this interface, plus a set of newChild, addChild and setValue methods that will be descovered by the framework at runtime with introspection.
The contract for methods discovered at runtime with introspection:
- newChild methods
  This method is called by the framework on the object model factory when parsing of a new XML element started. Each newChild method must have five arguments:
  1. parent object of a concrete Java type (not java.lang.Object) for this new child
  2. instance of org.jboss.xml.binding.UnmarshallingContext
  3. namespace URI of the child XML element as java.lang.String
  4. local name of the child XML element as java.lang.String
  5. attributes of the child XML element as org.xml.sax.Attributes
  Each newChild() method returns either a new instance of the child object that represents the XML element with the namespace URI and local name (in this case, the child XML element is said to be accepted, i.e. should be represented in the object graph) or null if this child XML element should be ignored, i.e. not be represented in the object graph.
- addChild methods
  This method is called on the object model factory by the framework when parsing of a child XML element completed. The arguments of the addChild() method are:
  1. parent object of a conrete Java type (not java.lang.Object) of the child
  2. child object of a concrete Java type (returned earlier by the newChild method that was called when parsing of this child XML element started)
  3. instance of org.jboss.xml.binding.UnmarshallingContext
  4. namespace URI for the child XML element as java.lang.String
  5. local name for the child XML element as java.lang.String
  When addChild method is called, the child object is supposed to be populated with all the data from the corresponding XML element. The child object now can be validated and added to the parent.
- setValue methods
  This method is called on the object model factory by the framework when a new XML element with text content was parsed. The method must have four arguments:
  1. an object of a concrete Java type (not java.lang.Object) which was returned earlier by the newChild method (that was called when parsing of the parent XML element started) for which the value of an XML element was read
  2. instance of org.jboss.xml.binding.UnmarshallingContext
  3. namespace URI of the child XML element as java.lang.String
  4. local name of the child XML element as java.lang.String
  5. the value of the child XML element as java.lang.String
  In setValue method the object model factory is supposed to set the value on the field which represents the parsed XML element possibly converting the parsed XML element value to the field's Java type.
@author Alexey Loubyansky @version $Revision: 1455 $


   public void testObjectModelFactory() throws Exception
   {
      String url = findXML("IgnorableWhitespaceContent.xml");
      
      ObjectModelFactory omf = new OMF();
      
      Unmarshaller unmarshaller = UnmarshallerFactory.newInstance().newUnmarshaller();
      Object o = unmarshaller.unmarshal(url, omf, null);
      
      assertNotNull(o);

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   private static final Logger log = Logger.getLogger(EjbJarDDObjectFactory.class);


   public static EjbJarDD parse(URL ddResource) throws JBossXBException, IOException
   {
      ObjectModelFactory factory = null;
      Unmarshaller unmarshaller = null;
      EjbJarDD dd = null;


      if (ddResource != null)
      {

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         URL wsddUrl = wsdd.toURL();
         try
         {
            InputStream is = wsddUrl.openStream();
            Unmarshaller unmarshaller = UnmarshallerFactory.newInstance().newUnmarshaller();
            ObjectModelFactory factory = new WebservicesFactory(wsddUrl);
            webservices = (WebservicesMetaData)unmarshaller.unmarshal(is, factory, null);
            is.close();
         }
         catch (Exception e)
         {

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            Element root = DOMUtils.parse(wsURL.openStream());
            String namespaceURI = root.getNamespaceURI();
            if (namespaceURI.equals("http://java.sun.com/xml/ns/j2ee"))
            {
               Unmarshaller unmarshaller = UnmarshallerFactory.newInstance().newUnmarshaller();
               ObjectModelFactory factory = new WebservicesFactory(wsURL);
               wsMetaData = (WebservicesMetaData)unmarshaller.unmarshal(wsURL.openStream(), factory, null);
               unit.addAttachment(WebservicesMetaData.class, wsMetaData);
            }
         }
         catch (Exception ex)

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      // create unmarshaller
      Unmarshaller unmarshaller = UnmarshallerFactory.newInstance().newUnmarshaller();


      // create an instance of ObjectModelFactory
      ObjectModelFactory factory = new ConfigInfoBinding();


      // let the object model factory to create an instance of Book and populate it with data from XML
      ConfigInfo ci = (ConfigInfo)unmarshaller.unmarshal(is, factory, null);


      // close the XML stream

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   public void start()
      throws Exception
   {
      log.debug("Reading resource: '" + notificationMapResName + "'");
      
      ObjectModelFactory omf = new NotificationBinding();
      InputStream is = null;
      try
      {
         // locate notifications.xml
         is = this.getClass().getResourceAsStream(notificationMapResName);

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   */
  private void initializeBindings() throws Exception
   {
      log.debug("Reading resource: '" + resourceName + "'");
      
      ObjectModelFactory omf = new AttributeMappingsBinding();
      InputStream is = null;
      AttributeMappings mappings = null;
      try
      {
         // locate resource

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            Element root = DOMUtils.parse(wsURL.openStream());
            String namespaceURI = root.getNamespaceURI();
            if (namespaceURI.equals("http://java.sun.com/xml/ns/j2ee"))
            {
               Unmarshaller unmarshaller = UnmarshallerFactory.newInstance().newUnmarshaller();
               ObjectModelFactory factory = new WebservicesFactory(wsURL);
               wsMetaData = (WebservicesMetaData)unmarshaller.unmarshal(wsURL.openStream(), factory, null);
               unit.addAttachment(WebservicesMetaData.class, wsMetaData);
            }
         }
         catch (Exception ex)

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   /**
    * Test if we can unmarshal a ra.xml without DTD
    */
   public void testRARwithoutDTD() throws Exception
   {
      ObjectModelFactory factory = new ResourceAdapterObjectModelFactory();
      Object metaData = unmarshaller.unmarshal(systemId, factory, null);
      assertNotNull("Null meta data", metaData);
   }

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   /**
    * Test if we can unmarshal a ra.xml with DTD
    */
   public void testRARwithDTD() throws Exception
   {
      ObjectModelFactory factory = new ResourceAdapterObjectModelFactory();
      Object metaData = unmarshaller.unmarshal(systemId, factory, null);
      assertNotNull("Null meta data", metaData);
   }

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