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

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Java » GWT » Table Data Binding 




Live Grid Fetch Sample (Smart GWT)
Live Grid 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.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.ListGridFieldType;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.form.validator.FloatPrecisionValidator;
import com.smartgwt.client.widgets.form.validator.FloatRangeValidator;
import com.smartgwt.client.widgets.grid.CellFormatter;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridField;
import com.smartgwt.client.widgets.grid.ListGridRecord;

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

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

  public Canvas getViewPanel() {
    DataSource dataSource = ItemSupplyXmlDS.getInstance();

    ListGridField rowNum = new ListGridField("itemNum""Item No.");
    rowNum.setWidth(65);
    rowNum.setCellFormatter(new CellFormatter() {
      public String format(Object value, ListGridRecord record, int rowNum, int colNum) {
        return rowNum + "";
      }
    });

    ListGridField itemName = new ListGridField("itemName"100);
    ListGridField sku = new ListGridField("SKU"100);
    ListGridField description = new ListGridField("description"150);
    ListGridField category = new ListGridField("category"100);
    ListGridField units = new ListGridField("units"100);

    ListGridField unitCost = new ListGridField("unitCost"100);
    unitCost.setType(ListGridFieldType.FLOAT);

    ListGridField inStock = new ListGridField("inStock"100);
    inStock.setType(ListGridFieldType.BOOLEAN);

    ListGridField nextShipment = new ListGridField("nextShipment"100);
    nextShipment.setType(ListGridFieldType.DATE);

    final ListGrid listGrid = new ListGrid();
    listGrid.setWidth100();
    listGrid.setHeight100();
    listGrid.setAutoFetchData(true);
    listGrid.setDataSource(dataSource);

    listGrid.setFields(rowNum, itemName, sku, description, category, units, unitCost, itemName,
        sku, description, category, units, unitCost, itemName, sku, description, category, units,
        unitCost);

    return listGrid;

  }

}

class SupplyCategoryXmlDS extends DataSource {

  private static SupplyCategoryXmlDS instance = null;

  public static SupplyCategoryXmlDS getInstance() {
    if (instance == null) {
      instance = new SupplyCategoryXmlDS("supplyCategoryDS");
    }
    return instance;
  }

  public SupplyCategoryXmlDS(String id) {

    setID(id);
    setRecordXPath("/List/supplyCategory");

    DataSourceTextField itemNameField = new DataSourceTextField("categoryName""Item"128true);
    itemNameField.setPrimaryKey(true);

    DataSourceTextField parentField = new DataSourceTextField("parentID"null);
    parentField.setHidden(true);
    parentField.setRequired(true);
    parentField.setRootValue("root");
    parentField.setForeignKey("supplyCategoryDS.categoryName");

    setFields(itemNameField, parentField);

    setDataURL("ds/test_data/supplyCategory.data.xml");

    setClientOnly(true);

  }
}

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)
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