0 Replies Latest reply on Sep 14, 2007 12:30 PM by Toni Beckman

    synchronized keyword in SLSB

    Toni Beckman Novice

      Hi,

      may we use the java keyword "synchronized" on a method of a SLSB to ensure that several statements get executed all together or not at all?

      I have a method in a SLSB, which updates a counter kept in an Entity bean, if some condition is fulfilled.

      Afterwards the counter is increased. I want to ensure the integrity of the counter. Because several threads can and will access the method.

      What would you suggest?

      This how the pseudo code block looks like:

      
      public String methodDoesNotBelongToSLSinterface(EnityBeanWithCounter eb)
      {
      ...
      ...
      // make sure that no race condition can occur using
      synchronized(this)
      {
      statement1;
      statement2;
      ...
      statementN;
      // Increase counter if successful
      if (someCondition)
       eb.setCounter(eb.getCounter + 1);
      }
      ....
      ....
      }