Use Eclipse JFace DeferredContentProvider

import java.text.Collator;

import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.deferred.DeferredContentProvider;
import org.eclipse.jface.viewers.deferred.SetModel;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class DeferredContentProviderViewer extends Composite {

  private TableViewer viewer;
  private SetModel    times;
  private Runnable    runnable;

  public DeferredContentProviderViewer(Composite parent, int style) {
    super(parent, style);
    initialize();
    this.setLayout(new FillLayout());
  }

  private void initialize() {
    setSize(new Point(300, 200));
    setLayout(new GridLayout());

    viewer = new TableViewer(this, SWT.VIRTUAL | SWT.H_SCROLL | SWT.V_SCROLL);
    viewer.setContentProvider(new DeferredContentProvider(Collator.getInstance()));

    times = new SetModel();
    viewer.setInput(times);

    runnable = new Runnable() {

      @Override
      public void run() {
        long initTimeMillis = System.currentTimeMillis();
        try {
          while (!isDisposed()) {
            long currentTimeMillis = System.currentTimeMillis();
            synchronized (times) {
              times.addAll(new String[] { String.format("%TT", 
                  initTimeMillis - currentTimeMillis) });
            }
            Thread.sleep(1000);
          }
        } catch (InterruptedException e) {
          e.printStackTrace();
        }
      }
    };

    Thread thread = new Thread(runnable);
    thread.start();
  }

  public static void main(String[] args) {
    Display display = Display.getDefault();
    Shell shell = new Shell(display);
    shell.setText("DeferredContentProvider");
    shell.setLayout(new FillLayout());
    shell.setSize(new Point(300, 200));
    new DeferredContentProviderViewer(shell, SWT.NONE);
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        display.sleep();
      }
    }
    display.dispose();
  }

}