Eclipse RCP: Right aligned search field in toolbar

Question

Hi,

I would like to have a right aligned search field in the toolbar 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