Grid and Form driven by the DataSource definition and no code to displaying labels or fields (Smart GWT) : DataSource « GWT « Java

Home
Java
1.2D Graphics GUI
2.3D
3.Advanced Graphics
4.Ant
5.Apache Common
6.Chart
7.Class
8.Collections Data Structure
9.Data Type
10.Database SQL JDBC
11.Design Pattern
12.Development Class
13.EJB3
14.Email
15.Event
16.File Input Output
17.Game
18.Generics
19.GWT
20.Hibernate
21.I18N
22.J2EE
23.J2ME
24.JDK 6
25.JNDI LDAP
26.JPA
27.JSP
28.JSTL
29.Language Basics
30.Network Protocol
31.PDF RTF
32.Reflection
33.Regular Expressions
34.Scripting
35.Security
36.Servlets
37.Spring
38.Swing Components
39.Swing JFC
40.SWT JFace Eclipse
41.Threads
42.Tiny Application
43.Velocity
44.Web Services SOA
45.XML
Java Tutorial
Java Source Code / Java Documentation
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Java » GWT » DataSourceScreenshots 
Grid and Form driven by the DataSource definition and no code to displaying labels or fields (Smart GWT)
Grid and Form driven by the DataSource definition and no code to displaying labels or fields (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.DataSourceBooleanField;
import com.smartgwt.client.data.fields.DataSourceDateField;
import com.smartgwt.client.data.fields.DataSourceEnumField;
import com.smartgwt.client.data.fields.DataSourceFloatField;
import com.smartgwt.client.data.fields.DataSourceIntegerField;
import com.smartgwt.client.data.fields.DataSourceLinkField;
import com.smartgwt.client.data.fields.DataSourceTextField;
import com.smartgwt.client.types.Alignment;
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.form.DynamicForm;
import com.smartgwt.client.widgets.form.fields.SelectItem;
import com.smartgwt.client.widgets.form.fields.events.ChangedEvent;
import com.smartgwt.client.widgets.form.fields.events.ChangedHandler;
import com.smartgwt.client.widgets.form.validator.FloatPrecisionValidator;
import com.smartgwt.client.widgets.form.validator.FloatRangeValidator;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.events.RecordClickEvent;
import com.smartgwt.client.widgets.grid.events.RecordClickHandler;
import com.smartgwt.client.widgets.layout.HLayout;
import com.smartgwt.client.widgets.layout.VLayout;

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

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

  public Canvas getViewPanel() {
    final DataSource countryDS = CountryXmlDS.getInstance();
    final DataSource supplyItemDS = ItemSupplyXmlDS.getInstance();

    final CompoundEditor cEditor = new CompoundEditor(countryDS);

    SelectItem dsSelect = new SelectItem();
    dsSelect.setName("datasource");
    dsSelect.setShowTitle(false);
    dsSelect.setValueMap("country""supply");
    dsSelect.addChangedHandler(new ChangedHandler() {
      public void onChanged(ChangedEvent event) {
        String ds = (Stringevent.getValue();
        if (ds.equalsIgnoreCase("country")) {
          cEditor.setDatasource(countryDS);
        else {
          cEditor.setDatasource(supplyItemDS);
        }
      }
    });
    DynamicForm form new DynamicForm();
    form.setValue("datasource""Select a DataSource");
    form.setItems(dsSelect);

    VLayout layout = new VLayout(15);
    layout.setWidth100();
    layout.setHeight("80%");

    layout.addMember(form);
    layout.addMember(cEditor);

    return layout;
  }

  private static class CompoundEditor extends HLayout {
    private DataSource datasource;

    private DynamicForm form;

    private ListGrid grid;

    private IButton saveButton;

    private CompoundEditor(DataSource datasource) {
      this.datasource = datasource;
    }

    protected void onInit() {
      super.onInit();
      this.form new DynamicForm();

      form.setDataSource(datasource);

      saveButton = new IButton("Save");
      saveButton.setLayoutAlign(Alignment.CENTER);
      saveButton.addClickHandler(new ClickHandler() {

        public void onClick(ClickEvent event) {
          form.saveData();
        }
      });

      VLayout editorLayout = new VLayout(5);
      editorLayout.addMember(form);
      editorLayout.addMember(saveButton);
      editorLayout.setWidth(280);

      grid = new ListGrid();
      grid.setWidth(500);
      grid.setHeight(350);
      grid.setDataSource(datasource);
      grid.setShowResizeBar(true);
      grid.setAutoFetchData(true);
      grid.addRecordClickHandler(new RecordClickHandler() {
        public void onRecordClick(RecordClickEvent event) {
          form.clearErrors(true);
          form.editRecord(event.getRecord());
          saveButton.enable();
        }

      });

      addMember(grid);
      addMember(editorLayout);
    }

    public DataSource getDatasource() {
      return datasource;
    }

    public void setDatasource(DataSource datasource) {
      this.datasource = datasource;
      grid.setDataSource(datasource);
      form.setDataSource(datasource);
      saveButton.disable();
      grid.fetchData();
    }
  }

}

class ItemSupplyXmlDS extends DataSource {

  private static ItemSupplyXmlDS instance = null;

  public static ItemSupplyXmlDS getInstance() {
    if (instance == null) {
      instance = new ItemSupplyXmlDS("supplyItemDS");
    }
    return instance;
  }

  public ItemSupplyXmlDS(String id) {

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

    DataSourceTextField itemNameField = new DataSourceTextField("itemName""Item Name"128true);
    DataSourceTextField skuField = new DataSourceTextField("SKU""SKU"10true);

    DataSourceTextField descriptionField = new DataSourceTextField("description""Description",
        2000);
    DataSourceTextField categoryField = new DataSourceTextField("category""Category"128true);
    categoryField.setForeignKey("supplyCategoryDS.categoryName");

    DataSourceEnumField unitsField = new DataSourceEnumField("units""Units"5);
    unitsField.setValueMap("Roll""Ea""Pkt""Set""Tube""Pad""Ream""Tin""Bag""Ctn",
        "Box");

    DataSourceFloatField unitCostField = new DataSourceFloatField("unitCost""Unit Cost"5);
    FloatRangeValidator rangeValidator = new FloatRangeValidator();
    rangeValidator.setMin(0);
    rangeValidator.setErrorMessage("Please enter a valid (positive) cost");

    FloatPrecisionValidator precisionValidator = new FloatPrecisionValidator();
    precisionValidator.setPrecision(2);
    precisionValidator.setErrorMessage("The maximum allowed precision is 2");

    unitCostField.setValidators(rangeValidator, precisionValidator);

    DataSourceBooleanField inStockField = new DataSourceBooleanField("inStock""In Stock");

    DataSourceDateField nextShipmentField = new DataSourceDateField("nextShipment""Next Shipment");

    setFields(pkField, itemNameField, skuField, descriptionField, categoryField, unitsField,
        unitCostField, inStockField, nextShipmentField);

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

class CountryXmlDS extends DataSource {

  private static CountryXmlDS instance = null;

  public static CountryXmlDS getInstance() {
    if (instance == null) {
      instance = new CountryXmlDS("countryDS");
    }
    return instance;
  }

  public CountryXmlDS(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)");
    DataSourceLinkField articleField = new DataSourceLinkField("article""Info");

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

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

   
    
    
  
SmartGWT.zip( 9,880 k)
Related examples in the same category
1.SimpleType and DataSource (Smart GWT)SimpleType and DataSource (Smart GWT)
2.Drive UI with DataSource (Smart GWT)Drive UI with DataSource (Smart GWT)
3.DataSource driven widgets. (Smart GWT)DataSource driven widgets. (Smart GWT)
4.SmartGWT combines large dataset handling with adaptive use of client-side sort (Smart GWT)SmartGWT combines large dataset handling with adaptive use of client-side sort (Smart GWT)
5.Load a DataSource from XML Schema, extend schema with SmartGWT-specific presentation attributes, and bind the Grid and Form to it (Smart GWT)Load a DataSource from XML Schema, extend schema with SmartGWT-specific presentation attributes, and bind the Grid and Form to it (Smart GWT)
6.Using DataSourceTextField with DataSource (Smart GWT)Using DataSourceTextField with DataSource (Smart GWT)
7.DataSources can bind directly to simple XML documents where field values appear as attributes or subelements."; (Smart GWT)
8.DataSources can extract field values from complex XML documents via XPath expressions (Smart GWT)DataSources can extract field values from complex XML documents via XPath expressions (Smart GWT)
9.Form Xml Edit And Save Sample (Smart GWT)Form Xml Edit And Save Sample (Smart GWT)
10.extends BaseModelextends BaseModel
11.Basic data binding (Ext GWT)Basic data binding (Ext GWT)
12.Grid data binding (Ext GWT)Grid data binding (Ext GWT)
13.Using ListStore to store list (Ext GWT)Using ListStore to store list (Ext GWT)
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.