Examples of javax.xml.bind.JAXBContext

javax.xml.bind.JAXBContext
The JAXBContext provides the JAXB users anchor to the implmentation and hos generated classes. A JAXBContext is used to obtain instances of {@link javax.xml.bind.Marshaller}, {@link javax.xml.bind.Unmarshaller}, and {@link javax.xml.bind.Validator}. To obtain a JAXBContext, the application invokes
```
 JAXBContext context = JAXBContext.newInstance("com.mycompany:com.mycompany.xml"); 
```
The list of colon separated package names matches the list in the schemas used to generate classes. In other words: If you have a schema using package name "com.mycompany.xml", then this package name has to be part of the list.

The JAXBContext class will scan the given list of packages for a file called jaxb.properties. This file contains the name of an instantiation class in the property {@link #JAXB_CONTEXT_FACTORY}. (See {@link #newInstance(String)} fordetails on how the class name is obtained.) Once such a file is found, the given class is loaded via {@link ClassLoader#loadClass(java.lang.String)}. The JAXBContext class demands, that the created object has a method
```
 public static JAXBContext createContext(String pPath, ClassLoader pClassLoader) throws JAXBException; 
```
This method is invoked with the same path and {@link ClassLoader} thanabove. See {@link #newInstance(String,ClassLoader)}} for details on the choice of the {@link ClassLoader}.

The created context will scan the same package path for implementation specific configuration details (in the case of the JaxMe application a file called Configuration.xml in any of the packages) and do whatever else is required to initialize the runtime. In particular it will invoke {@link DatatypeConverter#setDatatypeConverter(DatatypeConverterInterface)}.
@author JSR-31 @since JAXB1.0 @see Marshaller @see Unmarshaller @see Validator

  List<SoapEventMap> getEvents() throws TranslationException {
    // list of SoapEventMap objs
    List<SoapEventMap> events = new ArrayList<SoapEventMap>();


    try {
      JAXBContext jcontext = JAXBContext.newInstance(this.eventPkg);


      Unmarshaller unmarshaller = jcontext.createUnmarshaller();


      if (this.elements != null) {
        for (Element element : this.elements) {
          if (element != null) {
            SoapEventMap event = new SoapEventMap();

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    if ((obj != null) && obj instanceof Element) {
      result = (Element) obj;
    } else if (obj != null) {
      try {
        JAXBContext jcontext = JAXBContext.newInstance(this.eventPkg);
        Marshaller marshaller = jcontext.createMarshaller();


        Document doc = getTargetDocument();
        
        if (obj instanceof JaxbEventBase) {
          JaxbEventBase jeb = (JaxbEventBase)obj;

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        boolean result = true;
        String evtName = this.getEventName();
        this.setEventName(null);
        try {
      ValidationMonitor monitor = new ValidationMonitor();
      JAXBContext context = JAXBContext.newInstance(this.getClass().getPackage().getName());
      Marshaller marshaller = context.createMarshaller();
      marshaller.setSchema(this.validatingSchema);
      marshaller.setEventHandler(monitor);
      marshaller.marshal(getMarshallableType(), getTargetDocument());
      
      monitor.populate(errors);

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  }


  static public Object unmarshall(String path, String pkg, ClassLoader loader)
      throws Exception {
    LOGGER.debug("Unmarshalling " + path + " in package " + pkg); //$NON-NLS-1$ //$NON-NLS-2$
    JAXBContext jc = JAXBContext.newInstance(pkg, loader);
    Unmarshaller u = jc.createUnmarshaller();
    InputStream istream = ClassLoader.getSystemResourceAsStream(path);


    return u.unmarshal(istream);
  }

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  }


  static public OutputStream marshall(Object obj, String pkg,
      ClassLoader loader) throws Exception {
    LOGGER.debug("Marshalling " + obj + " in package " + pkg); //$NON-NLS-1$ //$NON-NLS-2$
    JAXBContext jc = JAXBContext.newInstance(pkg, loader);
    Marshaller m = jc.createMarshaller();
    OutputStream ostream = new ByteArrayOutputStream();


    m.marshal(obj, ostream);


    return ostream;

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    return ostream;
  }
  
  static public Document marshall(Object obj, String pkg, Document targetDoc, ClassLoader loader) throws Exception {
    JAXBContext jc = JAXBContext.newInstance(pkg, loader);
    Marshaller m = jc.createMarshaller();


    m.marshal(obj, targetDoc);


    return targetDoc;
  }

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                                                      HandlerChain handlerChain)
    throws WebServiceException
  {
    try {
      if (_handlerChainUnmarshaller == null) {
        JAXBContext context = 
          JAXBContext.newInstance("com.caucho.soap.jaxws.handlerchain");
        _handlerChainUnmarshaller = context.createUnmarshaller();
      }


      if (log.isLoggable(Level.FINER)) {
        log.finer("Creating handler chain for " + cl +
                  " from file " + handlerChain.file());

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    _wsdl = wsdl;
    _serviceName = serviceName;
    _serviceClass = serviceClass;


    try {
      JAXBContext context = 
        JAXBContext.newInstance("com.caucho.soap.jaxws.handlerchain");
      _handlerUnmarshaller = context.createUnmarshaller();
    }
    catch (Exception e) {
      throw new RuntimeException(e);
    }
  }

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                try {
                    Boolean outbound = (Boolean)ctx.get(MessageContext.MESSAGE_OUTBOUND_PROPERTY);
                    if (outbound) {
                        LogicalMessage msg = ctx.getMessage();
                        assertNotNull("logical message is null", msg);
                        JAXBContext jaxbCtx = JAXBContext.newInstance(PackageUtils
                            .getPackageName(PingOneWay.class));
                        PingResponse resp = new PingResponse();
                        resp.getHandlersInfo().add(clientHandlerMessage);


                        msg.setPayload(resp, jaxbCtx);

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                try {
                    Boolean outbound = (Boolean)ctx.get(MessageContext.MESSAGE_OUTBOUND_PROPERTY);
                    if (outbound) {
                        LogicalMessage msg = ctx.getMessage();
                        assertNotNull("logical message is null", msg);
                        JAXBContext jaxbCtx = JAXBContext.newInstance(PackageUtils
                            .getPackageName(PingOneWay.class));
                        PingResponse resp = new PingResponse();
                        resp.getHandlersInfo().add(clientHandlerMessage);


                        msg.setPayload(resp, jaxbCtx);

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