public class ViewHandler extends AbstractFormHandler {

    @Override
    protected void execLoad() throws ProcessingException {
      //open form code
    }

    @Override
    protected boolean getConfiguredOpenExclusive() {
      return true;
    }
  }

  public void startView() throws ProcessingException {
    startInternalExclusive(new DesktopForm.ViewHandler());
  }

  @Override
  public Object computeExclusiveKey() throws ProcessingException {
    return RECORD_ID;
  }

}