1 Reply Latest reply on Jan 31, 2018 5:48 PM by mkouba

    Is it legal for an Extension to keep a reference to BeanManager?

    ljnelson
    ljnelson Jan 31, 2018 3:36 PM

      In CDI 2.0, if I "leak" a BeanManager reference from a container lifecycle event observer method into an instance or static field in my Extension, can I safely and portably make use of that BeanManager reference from elsewhere?  Or should I always obtain a BeanManager reference at the point where I need it by calling CDI.current().getBeanManager()?

       

      Best,

      Laird

        • 1. Re: Is it legal for an Extension to keep a reference to BeanManager?
          mkouba
          mkouba Jan 31, 2018 5:48 PM (in response to ljnelson)

          Hi Laird,

          I think it's ok to keep a reference to a BeanManager in an extension instance. However, beware of static fields - such a BeanManager instance could potentially survive the shutdown of a container it comes from. And in such case, it should become unusable as its state should be cleaned up. If you only use one container at the same time then WeldContainer.current().getBeanManager() is probably the most efficient way to obtain a BeanManager.

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