The following code demonstrates how to use a TableViewer with Databinding. For a detailed explanation of the code, check the post Working with JFace TableViewer.
package com.oxbsystems.study.table.app02;
import java.util.Set;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.beans.PojoObservables;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.map.IObservableMap;
import org.eclipse.core.databinding.observable.set.WritableSet;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.StatusLineManager;
import org.eclipse.jface.action.ToolBarManager;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.jface.databinding.viewers.ObservableMapLabelProvider;
import org.eclipse.jface.databinding.viewers.ObservableSetContentProvider;
import org.eclipse.jface.layout.TableColumnLayout;
import org.eclipse.jface.viewers.ColumnWeightData;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TableViewerColumn;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import com.oxbsystems.study.domain.workgroup.Person;
import com.oxbsystems.study.domain.workgroup.Workgroup;
public class DatabindingTableApp extends ApplicationWindow {
private static class Sorter extends ViewerSorter {
public int compare(Viewer viewer, Object e1, Object e2) {
Person item1 = (Person) e1;
Person item2 = (Person) e2;
String s1 = item1.getLast()+item1.getFirst();
String s2 = item2.getLast()+item2.getFirst();
return s1.compareTo(s2);
}
}
@SuppressWarnings("unused")
private DataBindingContext m_bindingContext;
private Table table;
private TableViewer tableViewer;
@SuppressWarnings("unused")
private Workgroup workgroup;
private Set memberSet;
private Action clearSelectionAction;
/**
* Create the application window.
*/
public DatabindingTableApp() {
super(null);
createActions();
addToolBar(SWT.FLAT | SWT.WRAP);
addMenuBar();
addStatusLine();
}
/**
* Create contents of the application window.
*
* @param parent
*/
@Override
protected Control createContents(Composite parent) {
Composite container = new Composite(parent, SWT.NONE);
container.setLayout(new GridLayout(1, false));
// Create the composite
Composite composite = new Composite(container, SWT.NONE);
composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1,
1));
// Add TableColumnLayout
TableColumnLayout layout = new TableColumnLayout();
composite.setLayout(layout);
tableViewer = new TableViewer(composite, SWT.BORDER
| SWT.FULL_SELECTION);
tableViewer.setSorter(new Sorter());
tableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
IStructuredSelection sel = (IStructuredSelection) tableViewer.getSelection();
Person person = (Person) sel.getFirstElement();
if(person != null){
System.out.println("Selected : "+ person.getFirst() + " " + person.getLast());
}
else{
System.out.println("Selection cleared!");
}
}
});
tableViewer.addDoubleClickListener(new IDoubleClickListener() {
public void doubleClick(DoubleClickEvent event) {
IStructuredSelection sel = (IStructuredSelection) event.getSelection();
Person person = (Person) sel.getFirstElement();
if(person != null){
System.out.println("Double-click on : "+ person.getFirst() + " " + person.getLast());
}
}
});
table = tableViewer.getTable();
table.setHeaderVisible(true);
table.setLinesVisible(true);
TableViewerColumn tableViewerColumn = new TableViewerColumn(
tableViewer, SWT.NONE);
TableColumn tblclmnFirst = tableViewerColumn.getColumn();
layout.setColumnData(tblclmnFirst, new ColumnWeightData(2,
ColumnWeightData.MINIMUM_WIDTH, true));
tblclmnFirst.setText("First");
TableViewerColumn tableViewerColumn_1 = new TableViewerColumn(
tableViewer, SWT.NONE);
TableColumn tblclmnLast = tableViewerColumn_1.getColumn();
// Specify width using weights
layout.setColumnData(tblclmnLast, new ColumnWeightData(2,
ColumnWeightData.MINIMUM_WIDTH, true));
tblclmnLast.setText("Last");
TableViewerColumn tableViewerColumn_2 = new TableViewerColumn(
tableViewer, SWT.NONE);
TableColumn tblclmnTitle = tableViewerColumn_2.getColumn();
// Specify width using weights
layout.setColumnData(tblclmnTitle, new ColumnWeightData(4,
ColumnWeightData.MINIMUM_WIDTH, true));
tblclmnTitle.setText("Title");
TableViewerColumn tableViewerColumn_3 = new TableViewerColumn(
tableViewer, SWT.NONE);
TableColumn tblclmnEmail = tableViewerColumn_3.getColumn();
// Specify width using weights
layout.setColumnData(tblclmnEmail, new ColumnWeightData(6,
ColumnWeightData.MINIMUM_WIDTH, true));
tblclmnEmail.setText("Email");
initWorkgroup();
m_bindingContext = initDataBindings();
return container;
}
private void initWorkgroup() {
Workgroup w = new Workgroup();
Person p = new Person();
p.setId(1);
p.setFirst("John");
p.setLast("Smith");
p.setTitle("Manager");
p.setEmail("jsmith@somecompany.com");
w.add(p);
p = new Person();
p.setId(2);
p.setFirst("Sam");
p.setLast("Johnson");
p.setTitle("Supervisor");
p.setEmail("sjohnson@somecompany.com");
w.add(p);
this.setWorkgroup(w);
}
private void setWorkgroup(Workgroup workgroup) {
this.workgroup = workgroup;
this.memberSet = workgroup.getMemberSet();
}
/**
* Create the actions.
*/
private void createActions() {
// Create the actions
{
clearSelectionAction = new Action("Clear Selection") {
@Override
public void run() {
StructuredSelection sel = new StructuredSelection();
tableViewer.setSelection(sel);
super.run();
}
};
}
}
/**
* Create the menu manager.
*
* @return the menu manager
*/
@Override
protected MenuManager createMenuManager() {
MenuManager menuManager = new MenuManager("menu");
return menuManager;
}
/**
* Create the toolbar manager.
*
* @return the toolbar manager
*/
@Override
protected ToolBarManager createToolBarManager(int style) {
ToolBarManager toolBarManager = new ToolBarManager(style);
toolBarManager.add(clearSelectionAction);
return toolBarManager;
}
/**
* Create the status line manager.
*
* @return the status line manager
*/
@Override
protected StatusLineManager createStatusLineManager() {
StatusLineManager statusLineManager = new StatusLineManager();
return statusLineManager;
}
/**
* Launch the application.
*
* @param args
*/
public static void main(String args[]) {
Display display = Display.getDefault();
Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() {
public void run() {
try {
DatabindingTableApp window = new DatabindingTableApp();
window.setBlockOnOpen(true);
window.open();
Display.getCurrent().dispose();
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Configure the shell.
*
* @param newShell
*/
@Override
protected void configureShell(Shell newShell) {
super.configureShell(newShell);
newShell.setText("TableViewer with Databinding");
}
/**
* Return the initial size of the window.
*/
@Override
protected Point getInitialSize() {
return new Point(450, 300);
}
protected DataBindingContext initDataBindings() {
DataBindingContext bindingContext = new DataBindingContext();
//
ObservableSetContentProvider setContentProvider = new ObservableSetContentProvider();
tableViewer.setContentProvider(setContentProvider);
//
IObservableMap[] observeMaps = PojoObservables.observeMaps(
setContentProvider.getKnownElements(), Person.class,
new String[] { "first", "last", "title", "email" });
tableViewer
.setLabelProvider(new ObservableMapLabelProvider(observeMaps));
//
WritableSet writableSet = new WritableSet(memberSet, Person.class);
tableViewer.setInput(writableSet);
//
return bindingContext;
}
}
