XPath binding allows declarative integration with web services (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.smartgwt.client.widgets.form.fields.events.ClickEvent;
import com.smartgwt.client.widgets.form.fields.events.ClickHandler;
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.DataSourceField;
import com.smartgwt.client.data.XmlNamespaces;
import com.smartgwt.client.data.fields.DataSourceImageField;
import com.smartgwt.client.data.fields.DataSourceIntegerField;
import com.smartgwt.client.data.fields.DataSourceLinkField;
import com.smartgwt.client.types.FieldType;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.form.SearchForm;
import com.smartgwt.client.widgets.form.fields.ButtonItem;
import com.smartgwt.client.widgets.form.fields.TextItem;
import com.smartgwt.client.widgets.grid.ListGrid;

public class Showcase implements EntryPoint {
  public void onModuleLoad() {
    RootPanel.get().add(getViewPanel());
  }

  public Canvas getViewPanel() {

    Canvas canvas = new Canvas();

    Canvas yahooAttribution = new Canvas();
    yahooAttribution.setHeight(31);
    yahooAttribution.setContents("<a href='http://developer.yahoo.net/about'>"
        + "<img src='http://us.dev1.yimg.com/us.yimg.com/i/us/nt/bdg/websrv_88_1.gif' border='0'>"
        + "</a>");
    canvas.addChild(yahooAttribution);

    DataSource yahooDS = new DataSource();
    yahooDS.setDataURL("http://api.search.yahoo.com/ImageSearchService/V1/imageSearch");
    yahooDS.setRecordXPath("/yahoo:ResultSet/yahoo:Result");

    XmlNamespaces xmlNamespaces = new XmlNamespaces();
    xmlNamespaces.addNamespace("yahoo", "urn:yahoo:srchmi");
    yahooDS.setXmlNamespaces(xmlNamespaces);

    DataSourceImageField thumbnail = new DataSourceImageField("Thumbnail", "Thumbnail");
    thumbnail.setWidth(150);
    thumbnail.setImageHeight("imageHeight");
    thumbnail.setImageWidth("imageWidth");
    thumbnail.setValueXPath("yahoo:Thumbnail/yahoo:Url");

    DataSourceIntegerField imageWidth = new DataSourceIntegerField("imageWidth");
    imageWidth.setValueXPath("yahoo:Thumbnail/yahoo:Width");
    imageWidth.setAttribute("hidden", true);

    DataSourceIntegerField imageHeight = new DataSourceIntegerField("imageHeight");
    imageHeight.setValueXPath("yahoo:Thumbnail/yahoo:Height");
    imageHeight.setAttribute("hidden", true);

    DataSourceField title = new DataSourceField("Title", FieldType.TEXT);
    DataSourceField summary = new DataSourceField("Summary", FieldType.TEXT);

    DataSourceLinkField fullImage = new DataSourceLinkField("link", "Full Image");
    fullImage.setValueXPath("yahoo:Url");
    fullImage.setAttribute("target", "_blank");

    yahooDS.addField(thumbnail);
    yahooDS.addField(imageWidth);
    yahooDS.addField(imageHeight);
    yahooDS.addField(title);
    yahooDS.addField(summary);
    yahooDS.addField(fullImage);

    final ListGrid grid = new ListGrid();
    grid.setTop(120);
    grid.setWidth100();
    grid.setHeight(300);
    grid.setWrapCells(true);
    grid.setFixedRecordHeights(false);
    grid.setShowAllRecords(true);
    grid.setAlternateRecordStyles(true);
    grid.setDataSource(yahooDS);

    final SearchForm form = new SearchForm();
    form.setTop(50);
    form.setNumCols(3);
    TextItem query = new TextItem();
    query.setName("query");
    query.setTitle("Query");
    query.setDefaultValue("snowboarding");

    ButtonItem button = new ButtonItem();
    button.setTitle("Search");
    button.setStartRow(false);
    button.addClickHandler(new ClickHandler() {
      public void onClick(ClickEvent event) {
        grid.fetchData(form.getValuesAsCriteria());
      }
    });

    form.setItems(query, button);

    canvas.addChild(form);
    canvas.addChild(grid);
    return canvas;

  }

}
SmartGWT.zip( 9,880 k)
Related examples in the same category

SmartGWT can load WSDL service definitions and call web service operations with automatic JSON<->XML translation. (Smart GWT)
XPath binding allows declarative integration with web services (Smart GWT) : Web Services « GWT « Java

Related examples in the same category
