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import java.io.FileInputStream;
import java.io.IOException;
import java.math.BigDecimal;
import java.util.*;
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 primer.myPo.*;
/*
* $Id: Main.java,v 1.1 2007-12-05 00:49:22 kohsuke Exp $
*/
public class Main {
// This sample application demonstrates how to modify a java content
// tree and marshal it back to a xml data. This example demonstrates
// customiation within the schema file, po.xsd, and the impact that these
// customizations have on the schema derived Java representation.
public static void main( String[] args ) {
try {
// create a JAXBContext capable of handling classes generated into
// the primer.po package
JAXBContext jc = JAXBContext.newInstance( "primer.myPo" );
// create an Unmarshaller
Unmarshaller u = jc.createUnmarshaller();
// unmarshal a po instance document into a tree of Java content
// objects composed of classes from the primer.myPo package.
JAXBElement poe =
(JAXBElement)u.unmarshal( new FileInputStream( "po.xml" ) );
POType po = (POType)poe.getValue();
// change the billto address
USAddress address = po.getBillTo();
address.setToName( "John Bob" );
address.setStreet( "242 Main Street" );
address.setCity( "Beverly Hills" );
address.setState(USState.CA);
address.setZipCode(90210);
USState purchaseState = address.getState();
ListIterator iter = po.getItems().getItem().listIterator();
while( iter.hasNext()) {
// update to 20% off sale price
Items.Item item = (Items.Item)iter.next();
item.setPrice(item.getPrice().multiply(new BigDecimal("0.80")));
//Calculate sales tax for specific states
if (purchaseState == USState.MA) {
item.setPrice(item.getPrice().multiply(new BigDecimal("1.05")));
} else if (purchaseState == USState.CA) {
item.setPrice(item.getPrice().multiply(new BigDecimal("1.06")));
}
item.setPrice(item.getPrice().setScale(2, BigDecimal.ROUND_DOWN));
}
// create a Marshaller and marshal to a file
Marshaller m = jc.createMarshaller();
m.setProperty( Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE );
m.marshal( poe, System.out );
} catch( JAXBException je ) {
je.printStackTrace();
} catch( IOException ioe ) {
ioe.printStackTrace();
}
}
}