package com.smartgwt.sample.showcase.client.grid.databinding;
import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.data.DataSourceField;
import com.smartgwt.client.types.FieldType;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.sample.showcase.client.PanelFactory;
import com.smartgwt.sample.showcase.client.ShowcasePanel;
public class GridDataBindingDataSourceFieldsSample extends ShowcasePanel {
private static final String DESCRIPTION = "This ListGrid takes its field (column) settings" +
" from the country DataSource specified in the" +
" \"dataSource\" property of the component" +
" definition. This technique is appropriate for" +
" easy display of a shared data model with the" +
" default UI appearance and behaviors.";
public static class Factory implements PanelFactory {
private String id;
public Canvas create() {
GridDataBindingDataSourceFieldsSample panel = new GridDataBindingDataSourceFieldsSample();
id = panel.getID();
return panel;
}
public String getID() {
return id;
}
public String getDescription() {
return DESCRIPTION;
}
}
public Canvas getViewPanel() {
final ListGrid countryGrid = new ListGrid();
countryGrid.setWidth(500);
countryGrid.setHeight(224);
countryGrid.setShowAllRecords(true);
countryGrid.setDataSource(CountryDS.getInstance());
countryGrid.setAutoFetchData(true);
countryGrid.setCanEdit(true);
return countryGrid;
}
private static class CountryDS extends DataSource {
// The DataSource would normally be defined external to any classes that use it.
private static CountryDS instance = null;
public static CountryDS getInstance() {
if (instance == null) {
instance = new CountryDS("countryDS_DS");
}
return instance;
}
public CountryDS(String id) {
setID(id);
setRecordXPath("/List/country");
DataSourceField countryNameField = new DataSourceField("countryName", FieldType.TEXT, "Country");
DataSourceField countryCodeField = new DataSourceField("countryCode", FieldType.TEXT, "Code");
DataSourceField independenceField = new DataSourceField("independence", FieldType.DATE, "Independence");
DataSourceField populationField = new DataSourceField("population", FieldType.INTEGER, "Population");
DataSourceField gdpField = new DataSourceField("gdp", FieldType.FLOAT, "GDP ($B)");
setFields(countryNameField, countryCodeField, independenceField, populationField, gdpField);
setDataURL("ds/test_data/country.data.xml");
}
}
public String getIntro() {
return DESCRIPTION;
}
}