使用SDO跟踪XML数据的变化(1)

http://www.w3.org/2001/XMLSchema"
xmlns="http://www.example.com/PO"
targetNamespace="http://www.example.com/PO">

package com.company.sdo.po;
import commonj.sdo.DataObject;
import commonj.sdo.helper.DataFactory;
public class CreatePO {
public static void main(String[] args) throws Exception {
//1.  使用XSD定义类型和属性
Util.definePOTypes();
//2.  建立根DataObject
DataObject purchaseOrder =
DataFactory.INSTANCE.create(Constants.PO_NAMESPACE, "PurchaseOrderType");
//3.  设置根DataObject的数据类型属性
purchaseOrder.setString("orderDate", "1999-10-20");
//4.  建立子DataObject
DataObject shipTo = purchaseOrder.createDataObject("shipTo");
//5.  设置子DataObject的数据类型属性
shipTo.set("country", "US");
shipTo.set("name", "Alice Smith");
shipTo.set("street", "123 Maple Street");
shipTo.set("city", "Mill Valley");
shipTo.set("state", "CA");
shipTo.setString("zip", "90952");
DataObject billTo = purchaseOrder.createDataObject("billTo");
billTo.set("country", "US");
billTo.set("name", "Robert Smith");
billTo.set("street", "8 Oak Avenue");
billTo.set("city", "Mill Valley");
billTo.set("state", "PA");
billTo.setString("zip", "95819");
purchaseOrder.set("comment", "Hurry, my lawn is going wild!");
DataObject items = purchaseOrder.createDataObject("items");
//6.  为子DataObject “item”建立一个子DataObject
DataObject item1 = items.createDataObject("item");
item1.set("partNum", "872-AA");
item1.set("productName", "Lawnmower");
item1.setInt("quantity", 1);
item1.setString("price", "148.95");
item1.set("comment", "Confirm this is electric");
DataObject item2 = items.createDataObject("item");
item2.set("partNum", "926-AA");
item2.set("productName", "Baby Monitor");
item2.setInt("quantity", 1);
item2.setString("price", "39.98");
item2.setString("shipDate", "2007-11-21");
DataObject item3 = items.createDataObject("item");
item3.set("partNum", "998-AA");
item3.set("productName", "Carpet");
item3.setInt("quantity", 1);
item3.setString("price", "439.98");
item3.setString("shipDate", "2007-12-01");
//7.  将XML数据保存在一个XML文件中
Util.storeXML(purchaseOrder,"purchaseOrder", Constants.PO_XML);
}
} 

public static void definePOTypes() throws Exception {
FileInputStream fis = new FileInputStream(PO_MODEL_ORIGINAL);
XSDHelper.INSTANCE.define(fis, null);
fis.close();
}