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

      setBuildManagedObject(true);
   }
   
   @Override
   protected TranslatorMetaDataGroup parse(VFSDeploymentUnit unit, VirtualFile file, TranslatorMetaDataGroup root) throws Exception {
    JAXBContext context = JAXBContext.newInstance(new Class[] {TranslatorMetaDataGroup.class});
      Unmarshaller um = context.createUnmarshaller();      
      InputStream is = file.openStream();


      try{
         InputSource input = new InputSource(is);
         input.setSystemId(file.toURI().toString());

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      throw new IllegalArgumentException("Cannot match arguments: expectedClass=" + expectedType ); //$NON-NLS-1$
    }    
  }


  static Unmarshaller getUnMarsheller() throws JAXBException, SAXException {
    JAXBContext jc = JAXBContext.newInstance(new Class<?>[] {VDBMetaData.class});
    SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
    Schema schema = schemaFactory.newSchema(VDBMetaData.class.getResource("/vdb-deployer.xsd")); //$NON-NLS-1$
    Unmarshaller un = jc.createUnmarshaller();
    un.setSchema(schema);
    return un;
  }

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    group.addTranslator(translator);
        
    // Now use JAXB and write the file.
    Class[] classes = { TranslatorMetaDataGroup.class };
    JAXBContext context = JAXBContext.newInstance(classes);
    Marshaller marshaller = context.createMarshaller();
    marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,new Boolean(true));


    FileWriter fw = null;
    try {
      fw = new FileWriter(dsXml);

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        this.rangeName = rangeName;
    }


    public <T> T getData(Class<T> clazz, String str) throws Exception {
        JAXBContext context = JAXBContext.newInstance(clazz);
        Unmarshaller u = context.createUnmarshaller();
        return (T) u.unmarshal(new FileReader(new File(folder, str)));
    }

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     * document form.
     * @return an XML document of this PlanNode
     */
    public String toXml() {
      try {
        JAXBContext jc = JAXBContext.newInstance(new Class<?>[] {PlanNode.class});
      Marshaller marshaller = jc.createMarshaller();
      marshaller.setProperty("jaxb.formatted.output", Boolean.TRUE); //$NON-NLS-1$
      StringWriter writer = new StringWriter();
      marshaller.marshal(this, writer);
      return writer.toString();
      } catch (JAXBException e) {

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    tm.setExecutionFactoryClass(ExecutionFactory.class);
    tm.setName("Oracle");
    tm.setDescription("desc");
    tm.addProperty("ExtensionTranslationClassName", "org.teiid.translator.jdbc.oracle.OracleSQLTranslator");
    
    JAXBContext jc = JAXBContext.newInstance(new Class<?>[] {TranslatorMetaDataGroup.class});
    Marshaller marshell = jc.createMarshaller();
    marshell.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,new Boolean(true));
    
    StringWriter sw = new StringWriter();
    marshell.marshal(group, sw);
        
    System.out.println(sw.toString());    
    
    Unmarshaller un = jc.createUnmarshaller();
    group = (TranslatorMetaDataGroup)un.unmarshal(new StringReader(sw.toString()));
    
    tm = group.getTranslators().get(0);
    
    assertEquals("Oracle", tm.getName());

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    vdb.addDataPolicy(roleOne);
    
    SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
        Schema schema = schemaFactory.newSchema(VDBMetaData.class.getResource("/vdb-deployer.xsd"));      //$NON-NLS-1$
    JAXBContext jc = JAXBContext.newInstance(new Class<?>[] {VDBMetaData.class});
    Marshaller marshell = jc.createMarshaller();
    marshell.setSchema(schema);
    marshell.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,new Boolean(true));
    
    StringWriter sw = new StringWriter();
    marshell.marshal(vdb, sw);
        
    //System.out.println(sw.toString());


    // UnMarshell
    Unmarshaller un = jc.createUnmarshaller();
    un.setSchema(schema);
    vdb = (VDBMetaData)un.unmarshal(new StringReader(sw.toString()));
    
    assertEquals("myVDB", vdb.getName()); //$NON-NLS-1$
    assertEquals("vdb description", vdb.getDescription()); //$NON-NLS-1$

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  @XmlElement(namespace="http://www.metamatrix.com/metamodels/MetaMatrixFunction", name="ScalarFunction")
  List<FunctionMethod> functionMethods = new ArrayList<FunctionMethod>();
  
  public static List<FunctionMethod> loadFunctionMethods(InputStream source) throws JAXBException {
    JAXBContext jc = JAXBContext.newInstance(new Class<?>[] {FunctionMetadataReader.class});
    Unmarshaller marshaller = jc.createUnmarshaller();
    FunctionMetadataReader md = (FunctionMetadataReader) marshaller.unmarshal(source);
    return md.functionMethods;
  }

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        AddressingPropertiesImpl maps = getMAPs(exposeAs, outbound);
        SOAPMessage message = control.createMock(SOAPMessage.class);
        context.getMessage();
        EasyMock.expectLastCall().andReturn(message);
        SOAPHeader header = setUpSOAPHeader(context, message, outbound);
        JAXBContext jaxbContext = control.createMock(JAXBContext.class);
        ContextUtils.setJAXBContext(jaxbContext);
        VersionTransformer.Names200408.setJAXBContext(jaxbContext);
        if (outbound) {
            setUpEncode(context,
                        message,

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               && ContextUtils.isRequestor(context)
               && !body.getChildElements().hasNext();
    }
    
    private Marshaller getMarshaller() throws JAXBException {
        JAXBContext jaxbContext =
            VersionTransformer.getExposedJAXBContext(currentNamespaceURI);
        Marshaller marshaller = jaxbContext.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FRAGMENT, Boolean.TRUE);
        return marshaller;
    }

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