Grid Data Bound: Fetch Sample (Smart GWT) : Table Data Binding « GWT « Java

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Java » GWT » Table Data BindingScreenshots 
Grid Data Bound: Fetch Sample (Smart GWT)
Grid Data Bound: Fetch Sample (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.Criteria;
import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.data.fields.DataSourceBooleanField;
import com.smartgwt.client.data.fields.DataSourceDateField;
import com.smartgwt.client.data.fields.DataSourceFloatField;
import com.smartgwt.client.data.fields.DataSourceIntegerField;
import com.smartgwt.client.data.fields.DataSourceTextField;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.IButton;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridField;

public class Showcase implements EntryPoint {
  public void onModuleLoad() {

    RootPanel.get().add(getViewPanel());
  }

  public Canvas getViewPanel() {

    Canvas canvas = new Canvas();

    final ListGrid countryGrid = new ListGrid();
    countryGrid.setWidth(500);
    countryGrid.setHeight(224);
    countryGrid.setAlternateRecordStyles(true);
    countryGrid.setDataSource(WorldXmlDS.getInstance());

    ListGridField countryCodeField = new ListGridField("countryCode""Country Code");
    ListGridField nameField = new ListGridField("countryName""Country");
    ListGridField capitalField = new ListGridField("capital""Capital");
    ListGridField continentField = new ListGridField("continent""Continent");
    countryGrid.setFields(countryCodeField, nameField, capitalField, continentField);

    countryGrid.setSortField(1);
    countryGrid.setDataPageSize(50);
    countryGrid.setDrawAheadRatio(4);

    IButton fetchUS = new IButton("Fetch Code:US");
    fetchUS.addClickHandler(new ClickHandler() {
      public void onClick(ClickEvent event) {
        countryGrid.fetchData(new Criteria("countryCode""US"));
      }
    });
    fetchUS.setLeft(0);
    fetchUS.setTop(240);
    fetchUS.setWidth(140);

    IButton fetchEurope = new IButton("Fetch Continent:Europe");
    fetchEurope.addClickHandler(new ClickHandler() {
      public void onClick(ClickEvent event) {
        countryGrid.fetchData(new Criteria("continent""Europe"));
      }

    });
    fetchEurope.setLeft(160);
    fetchEurope.setTop(240);
    fetchEurope.setWidth(140);

    IButton fetchAll = new IButton("Fetch All");
    fetchAll.addClickHandler(new ClickHandler() {
      public void onClick(ClickEvent event) {
        countryGrid.fetchData();
      }

    });
    fetchAll.setLeft(320);
    fetchAll.setTop(240);
    fetchAll.setWidth(140);

    canvas.addChild(countryGrid);
    canvas.addChild(fetchUS);
    canvas.addChild(fetchEurope);
    canvas.addChild(fetchAll);

    return canvas;

  }

}

class WorldXmlDS extends DataSource {

  private static WorldXmlDS instance = null;

  public static WorldXmlDS getInstance() {
    if (instance == null) {
      instance = new WorldXmlDS("worldDS");
    }
    return instance;
  }

  public WorldXmlDS(String id) {

    setID(id);
    setRecordXPath("/List/country");
    DataSourceIntegerField pkField = new DataSourceIntegerField("pk");
    pkField.setHidden(true);
    pkField.setPrimaryKey(true);

    DataSourceTextField countryCodeField = new DataSourceTextField("countryCode""Code");
    countryCodeField.setRequired(true);

    DataSourceTextField countryNameField = new DataSourceTextField("countryName""Country");
    countryNameField.setRequired(true);

    DataSourceTextField capitalField = new DataSourceTextField("capital""Capital");
    DataSourceTextField governmentField = new DataSourceTextField("government""Government"500);

    DataSourceBooleanField memberG8Field = new DataSourceBooleanField("member_g8""G8");

    DataSourceTextField continentField = new DataSourceTextField("continent""Continent");
    continentField.setValueMap("Europe""Asia""North America""Australia/Oceania",
        "South America""Africa");

    DataSourceDateField independenceField = new DataSourceDateField("independence""Nationhood");
    DataSourceFloatField areaField = new DataSourceFloatField("area""Area (km²)");
    DataSourceIntegerField populationField = new DataSourceIntegerField("population""Population");
    DataSourceFloatField gdpField = new DataSourceFloatField("gdp""GDP ($M)");

    setFields(pkField, countryCodeField, countryNameField, capitalField, governmentField,
        memberG8Field, continentField, independenceField, areaField, populationField, gdpField);

    setDataURL("ds/test_data/world.data.xml");
    setClientOnly(true);
  }
}

   
    
  
SmartGWT.zip( 9,880 k)
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