Criação de um data provider

package corporate.hoteisadmin3;

import java.io.File;

import org.w3c.dom.Document;

import org.w3c.dom.Node;

import lumis.doui.source.*;

import lumis.portal.PortalException;

import lumis.util.ITransaction;

import lumis.util.XmlUtil;

import lumis.portal.authentication.SessionConfig;

public class UFDataProvider implements IDataProvider<TabularSource<?>>

{

       public void loadData(SessionConfig sessionConfig, TabularSource<?> source, ITransaction transaction) throws PortalException

       {

             File ufs = new File("c:\\ufs.xml");

             Document ufsDom = XmlUtil.getDocument(ufs);

             TabularData tabularData = source.getData();

             Node[] ufNodes = XmlUtil.selectNodes("ufs/uf", ufsDom);

             for(Node ufNode : ufNodes)

             {

                    ISourceData newRow = tabularData.addRow();

                    String id = XmlUtil.readAttributeString("id", ufNode);

                    newRow.put("uf", id);

             }

       }

}

<?xml version="1.0" encoding="UTF-8" ?>

<ufs>

       <uf id="RJ" ></uf>

       <uf id="SP" ></uf>

       <uf id="MG" ></uf>

</ufs>