Examples of org.zkoss.zk.ui.sys.UiEngine.activate()

org.zkoss.zk.ui.sys.UiEngine.activate()

Activates an execution such that you can access a component. You must call {@link #deactivate} in the finally clause.

Note: you RARELY need to invoke this method because {@link #execNewPage}and {@link #execUpdate} will activate and deactivate automatically.

Note: this method can be called only when processing a client request (e.g., HTTP) other than creating a new page and processing async-update.

Also, even if you use this method to grant the right to access components of the specified page, don't post events, create, remove, invalidate and do any smart updates. In other words, READ ONLY.

  /** Safe to be called even if the Web application has been destroyed
   */
  private void safeActivate(Execution exec) {
    final UiEngine uieng = ((WebAppCtrl)_wapp).getUiEngine();
    if (uieng != null) {
      uieng.activate(exec);
    } else {
      _exec = exec;
      ExecutionsCtrl.setCurrent(exec);
    }
  }

      final DesktopCtrl desktopCtrl = (DesktopCtrl)desktop;


      final Execution oldexec = Executions.getCurrent();
      final Execution exec = new ExecutionImpl(
        _ctx, request, response, desktop, null);
      uieng.activate(exec);


      final Configuration config = wapp.getConfiguration();
      boolean err = false;
      try {
        config.invokeExecutionInits(exec, oldexec);

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.