Eclipse RCP: Right aligned search field in toolbar

I would like to have a right aligned search field in the toolba开发者_如何转开发r of an Eclipse RCP application. I already created the text field as ControlContribution and the respective search action in the ActionBarAdvisor class:

protected void fillCoolBar(ICoolBarManager coolBar) {
  IToolBarManager toolbar = new ToolBarManager(SWT.FLAT | SWT.RIGHT);
  //...
  toolbar.add(new ControlContribution("searchText") {
  //...

This works and I have the search field in the toolbar. But how can I align the search text (or the toolbar with the search text) on the right side?

Thanks, Michael

If you mean positioning search toolbar on the right hand site of the main toolbar, then consider using these areas instead (when using org.eclipse.ui.menus extension point):

toolbar:org.eclipse.ui.main.toolbar - the top-level tool bar 
toolbar:org.eclipse.ui.trim.command1 - the top left trim 
toolbar:org.eclipse.ui.trim.command2 - the top right trim 
toolbar:org.eclipse.ui.trim.vertical1 - the left vertical trim 
toolbar:org.eclipse.ui.trim.vertical2 - the right vertical trim 
toolbar:org.eclipse.ui.trim.status - the status line trim