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DataSources can extract field values from complex XML documents via XPath expressions (Smart GWT)

/*  * SmartGWT (GWT for SmartClient)  * Copyright 2008 and beyond, Isomorphic Software, Inc.  *  * SmartGWT is free software; you can redistribute it and/or modify it  * under the terms of the GNU Lesser General Public License version 3  * as published by the Free Software Foundation.  SmartGWT is also  * available under typical commercial license terms - see  * http://smartclient.com/license  * This software is distributed in the hope that it will be useful,  * but WITHOUT ANY WARRANTY; without even the implied warranty of  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU  * Lesser General Public License for more details.  */ package com.smartgwt.sample.showcase.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.user.client.ui.RootPanel; import com.smartgwt.client.data.DataSource; import com.smartgwt.client.data.fields.DataSourceTextField; import com.smartgwt.client.types.DSDataFormat; import com.smartgwt.client.widgets.Canvas; import com.smartgwt.client.widgets.grid.ListGrid; public class Showcase implements EntryPoint {   public void onModuleLoad() {     RootPanel.get().add(getViewPanel());   }   public Canvas getViewPanel() {     DataSource dataSource = new DataSource();     dataSource.setDataFormat(DSDataFormat.XML);     dataSource.setRecordXPath("//contact");     dataSource.setDataURL("data/dataIntegration/xml/contactsData.xml");     DataSourceTextField nameField = new DataSourceTextField("name", "Name");     DataSourceTextField emailField = new DataSourceTextField("email", "Email");     DataSourceTextField orgField = new DataSourceTextField("organization", "Organization");     DataSourceTextField phoneField = new DataSourceTextField("phone", "Phone");     DataSourceTextField streetField = new DataSourceTextField("street", "Street");     streetField.setValueXPath("address/street");     DataSourceTextField cityField = new DataSourceTextField("city", "City");     cityField.setValueXPath("address/city");     DataSourceTextField stateField = new DataSourceTextField("state", "State");     stateField.setValueXPath("address/state");     DataSourceTextField zipField = new DataSourceTextField("zip", "Zip");     zipField.setValueXPath("address/zip");     dataSource.setFields(nameField, emailField, orgField, phoneField, streetField, cityField,         stateField, zipField);     ListGrid grid = new ListGrid();     grid.setDataSource(dataSource);     grid.setWidth100();     grid.setHeight(100);     grid.setAutoFetchData(true);     return grid;   } }                  SmartGWT.zip( 9,880 k)