public interface UnmarshallerHandler
extends org.xml.sax.ContentHandler
Applications can use this interface to use their JAXB provider as a component in an XML pipeline. For example:
JAXBContext context = JAXBContext.newInstance( "org.acme.foo" );
Unmarshaller unmarshaller = context.createUnmarshaller();
UnmarshallerHandler unmarshallerHandler = unmarshaller.getUnmarshallerHandler();
SAXParserFactory spf = SAXParserFactory.newInstance();
spf.setNamespaceAware( true );
XMLReader xmlReader = spf.newSAXParser().getXMLReader();
xmlReader.setContentHandler( unmarshallerHandler );
xmlReader.parse(new InputSource( new FileInputStream( XML_FILE ) ) );
MyObject myObject= (MyObject)unmarshallerHandler.getResult();
This interface is reusable: even if the user fails to unmarshal an object, s/he can still start a new round of unmarshalling.
Unmarshaller.getUnmarshallerHandler()| Modifier and Type | Method and Description |
|---|---|
java.lang.Object |
getResult()
Obtains the unmarshalled result.
|
java.lang.Object getResult()
throws JAXBException,
java.lang.IllegalStateException
java.lang.IllegalStateException - if this method is called before this handler
receives the endDocument event.JAXBException - if there is any unmarshalling error.
Note that the implementation is allowed to throw SAXException
during the parsing when it finds an error.