The next JVx release will be version 2.5. It will be available by the end of this week (beginning of July). It's a really cool release because JVx got awesome new features. We had to change the API a little bit but it shouldn't be a problem for your existing applications.

What will be interesting?

• Push-light

  Our push support has nothing to do with Websockets. It's a technology independent solution for JVx. The Push-light mechanism is available on server-side and enables you to send objects from the server to the client. If you use a direct connection betwenn client and server, the objects wil be sent immediate (e.g. vaadin UI). If you use a serialized connection, the objects will be sent with next client call or alive check.

  The API is simple:

  SessionContext.publishCallBackResult("MESSAGE", "Please logout!");

  or, in a Thread

  final ICallBackBroker broker = SessionContext.getCurrentInstance().getCallBackBroker();

  Thread th = new Thread(new Runnable()
  {
      public void run()
      {
          try
          {
              int i = 0;

              while (isMessageLoopEnabled(i))
              {
                  Thread.sleep(200);
                 
                  broker.publish("MESSAGE", getMessage(i++));
              }
          }
          catch (InterruptedException ie)
          {
              //done
          }
      }
  });
  th.start();

  It's also possible to publish to all clients, via ICallBackBroker.

  The client code is short and simple:

  connection.addCallBackResultListener(new ICallBackResultListener()
  {
      public void callBackResult(CallBackResultEvent pEvent)
      {
          if ("MESSAGE".equals(pEvent.getInstruction()))
          {
              showMessage((String)pEvent.getObject());
          }
      }
  });

  More details: Tickets #25, #1635

• H2 DB support

  We support H2 with a custom H2DBAccess. The auto detection works with URLs: jdbc:h2:.

• SQLite DB support

  We support SQLite with a custom SQLiteDBAccess. The auto detection works with URLs: jdbc:sqlite:.

• MySql limit support

  Read more...

• Life-cylcle object method inheritance
• Pie control
• Set individual cells of a table readonly
• Connection retries

  We try to re-send requests, if errors occur during transmission. This feature will be available for serialized connections only.

• Security improvements

  see Tickets: #1605, #1606, #630.

• API changes

  ICellFormat got a Style attribute and the createCellFormat of IFactory got one more parameter