3 Replies Latest reply on Sep 20, 2005 11:41 AM by tom.baeyens

    who needs transient variables ?

    tom.baeyens
    tom.baeyens Sep 15, 2005 4:13 PM

      hi,

      for the next version of jbpm, i'm building a thread local context map. basically it is a convenient way to store information in a ThreadLocal.

      after writing the thread context for other purposes i saw that it could replace the transient variables.

      in fact, can't transient variables always be replaced by making use of a ThreadLocal ?

      what do you think ?

      regards, tom.

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        • 1. Re: who needs transient variables ?
          kukeltje
          kukeltje Sep 15, 2005 5:51 PM (in response to tom.baeyens)

          if the businesslogic is within the same thread yes, but how do you see it if the bl (or code excuted from an asyn action) is not run within the same thread? Is it easy to retrieve the context map from the threadlocal? If so I do not see a problem. It should however not be exposed to the user that a threadlocal solution is used.

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          • 2. Re: who needs transient variables ?
            houyunf
            houyunf Sep 16, 2005 3:22 AM (in response to tom.baeyens)

            Well, in that case, I think you should not use transient variable. In my understanding, thansient variable will be discarded when entering into state or task node, or what ever node type will keep the process in a non-complete state.


            Yunfeng Hou

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            • 3. Re: who needs transient variables ?
              tom.baeyens
              tom.baeyens Sep 20, 2005 11:41 AM (in response to tom.baeyens)

              asynchronous continuation of a process will also dispose the transient variables.

              the availability of transient variables and the thread locals will be very similar, i guess. but i decided to keep the transient variables for backwards compatibilty anyway.

              regards, tom.

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