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import java.io.FileInputStream;
import java.io.IOException;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
// import java content classes generated by binding compiler
import com.example.ipo.*;
/*
* $Id: Main.java,v 1.2 2009-11-11 14:17:31 pavel_bucek Exp $
*/
public class Main {
// This sample application demonstrates type substitution using
// using schema example at http://www.w3.org/TR/xmlschema-0/#UseDerivInInstDocs.
public static void main( String[] args ) {
try {
// create a JAXBContext capable of handling classes generated into
// the com.example.ipo package.
JAXBContext jc = JAXBContext.newInstance( "com.example.ipo" );
// create an Unmarshaller
Unmarshaller u = jc.createUnmarshaller();
// unmarshal a po instance document into a tree of Java content
// objects composed of classes from the "com.example.ipo" package
JAXBElement<PurchaseOrderType> poe =
(JAXBElement<PurchaseOrderType>)u.unmarshal( new FileInputStream( "ipo.xml" ) );
PurchaseOrderType po = poe.getValue();
// create a Marshaller and marshal to a file
System.out.println("Original Purchase Order");
Marshaller m = jc.createMarshaller();
m.setProperty( Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE );
m.marshal( poe, System.out );
System.out.println("******************************************************");
// Process a return. Reverse purchase order addresses.
Address billToAddress = po.getBillTo();
Address shipToAddress = po.getShipTo();
po.setBillTo(shipToAddress);
po.setShipTo(billToAddress);
System.out.println("Return Merchandise. Ship and Bill address reversed.");
m.marshal( poe, System.out );
System.out.println("******************************************************");
/*********************************************************************/
// Illustrate setting a type substitution on a javax.xml.bind.Element instance.
USTaxExemptPurchaseOrderType uspo =
new ObjectFactory().createUSTaxExemptPurchaseOrderType();
uspo.setShipTo(billToAddress);
uspo.setBillTo(billToAddress);
uspo.setTaxExemptId("charity007");
uspo.setOrderDate(po.getOrderDate());
uspo.setComment(po.getComment());
Items items = new ObjectFactory().createItems();
items.getItem().addAll(po.getItems().getItem());
uspo.setItems(items);
//PurchaseOrder element type in schema is "PurchaseOrderType".
//Set it to an instance of type "USTaxExemptPurchaseOrderType" that
//extends (derives using XML terminology) from "PurchaseOrderType".
poe.setValue(uspo);
System.out.println("Tax Exempt Purchase Order composed within Application.");
m.marshal( poe, System.out );
System.out.println("******************************************************");
/*********************************************************************/
// Unmarshal and manipulate a global element that has a document specifed
// type substitution. (@xsi:type specified on element in instance document.)
// unmarshal an instance document that identifies derived type
// "ipo:USTaxExemptPurchaseOrder" for global root element <ipo:purchaseOrder>.
poe = (JAXBElement<PurchaseOrderType>)u.unmarshal( new FileInputStream( "ustaxexemptpo.xml" ) );
// Access data added to element <ipo:purchaseOrder> via type substitution.
// All data added by derivation by extension from the element's original
// type specified in the schema must be accessed through this unwrapping
// of the element.
PurchaseOrderType pot = poe.getValue();
if (poe.isTypeSubstituted() &&
pot instanceof USTaxExemptPurchaseOrderType) {
USTaxExemptPurchaseOrderType taxexemptpo = (USTaxExemptPurchaseOrderType)pot;
System.out.println("US Tax exempt id: " + taxexemptpo.getTaxExemptId());
}
// create a Marshaller and marshal to a file
System.out.println("Tax Exempt Purchase Order");
m.marshal( poe, System.out );
System.out.println("******************************************************");
} catch( JAXBException je ) {
je.printStackTrace();
} catch( IOException ioe ) {
ioe.printStackTrace();
} catch(Exception e) {
e.printStackTrace();
}
}
}