* @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*/
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
final GSSQueryContainment gssQueryContainment = (GSSQueryContainment) UiUtil.getSelectedEObject();
NewGSSQueryWizard wizard = new NewGSSQueryWizard(gssQueryContainment);
WizardDialog dialog = new WizardDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), wizard);
dialog.create();
dialog.open();
return null;
}