What is Marshalling and how to marshal ?

Content tree may be marshalled by passing it to marshal method of Marshaller object.

javax.xml.bind.Marshaller

An interface that governs the process of serializing Java content trees back into XML data.

Marshalling examples

Marshalling to a File

JAXBContext jc = JAXBContext.newInstance("com.genius.foo" );

Unmarshaller u = jc.createUnmarshaller();

FooObject obj = (FooObject) u.unmarshal( new File( "foo.xml") );

Marshaller m = jc.createMarshaller();

OutputStream os = new FileOutputStream( "genius.xml" );

m.marshal( obj, os );

Marshalling to a OutputStream

JAXBContext jc = JAXBContext.newInstance("com.genius.foo" );

Unmarshaller u = jc.createUnmarshaller();

FooObject obj = (FooObject) u.unmarshal( new File( "foo.xml") );

Marshaller m = jc.createMarshaller();

m.marshal( obj, System.out );

Marshalling to a Writer

JAXBContext jc = JAXBContext.newInstance("com.genius.foo" );

Unmarshaller u = jc.createUnmarshaller();

FooObject obj = (FooObject) u.unmarshal( new File( "foo.xml") );

Marshaller m = jc.createMarshaller();

m.marshal( obj, new PrintWriter( System.out ) );

Marshalling to a javax.xml.transform.StreamResult

JAXBContext jc = JAXBContext.newInstance("com.genius.foo" );

Unmarshaller u = jc.createUnmarshaller();

FooObject obj = (FooObject)u.unmarshal( new File( "foo.xml") );

Marshaller m = jc.createMarshaller();

StreamResult result = new StreamResult( System.out );

m.marshal( obj, result );