Why doesn't IHibernateDao contains a method used to close a Session?
It's all nice and well to be able to open a session but unless there is
a hook for closing a session we're going to be leaking resources. The
code seems to assume that closing a session is as simple as invoking
Session.close() but this is not necessarily true. In my code, for
example, I associate an Interceptor with a Session and store the
association in a Map. When certain exceptions are thrown, such as
StaleObjectStateException, I retrieve the Interceptor associated with
the session and use information stored within to roll back some changes
that Hibernate does not do itself.
My point is this: unless IHibernateDao has a method like:
closeSession(Session)
then my code will leak resources. I could always use WeakReferences to
work around this but the problem remains: we should provide a hook for
closing a session. Also there seems to be a lack of correlation betwen
the request cycle and IHibernateDao. IHibernateDao should make some sort
of guarantees ... like, does it guarantee that the session returned by
getSession() will only be used within a single request and then
getSession() will be invoked in the next request? Without these sorts of
guarantees it becomes difficult to control the session life-cycle...
Ideas?
Gili
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