This works now smoothly.
On Feb 5, 8:50 pm, Kris Nuttycombe <kris.nuttyco...@gmail.com> wrote:
> On Thu, Feb 5, 2009 at 1:43 PM, David Pollak
> <feeder.of.the.be...@gmail.com>wrote:
>
>
>
>
>
> > On Thu, Feb 5, 2009 at 12:13 PM, Kris Nuttycombe <
> > kris.nuttyco...@gmail.com> wrote:
>
> >> David, I'm a little confused by how to use registerCleanupFunc after your
> >> most recent set of changes. It now appears to be package-private, so what
> >> is
> >> the recommended way to register a cleanup func for a RequestVar?
> >> Previously,
> >> I'd implemented my JNDIResource class for use with the JPA stuff like this:
>
> >> object JNDIResource {
> >> val context = new InitialContext()
> >> }
>
> >> abstract class JNDIResource[T](val name: String) extends
> >> RequestVar[T](context.lookup(name).asInstanceOf[T]) {
>
> > The onShutdown method will always be called:
>
> > override protected def onShutdown(session: CleanUpParam): Unit = {
> > dispose(this.is)
> > }
>
> > If you are putting something in the RequestVar that needs cleanup, you
> > should register the cleanup method on the session:
>
> > S.session.foreach(_.addSessionCleanup(session => cleanup))
>
> I don't think I understand this - will the RequestVar onShutdown hook get
> not called at the end of the processing of each HTTP request?
>
> Thanks,
>
> Kris
>
>
>
> >> // This is way too dependent upon an implementation detail of the
> >> superclass.
> >> override def cleanupFunc : Box[() => Unit] = {
> >> Log.debug("Initializing JNDI resource " + name + "(" + this.is + ")")
> >> initialize(this.is) //this will result in a recursive call, but the
> >> the order of operations is such that it will take the other branch.
>
> >> Full(() => {
> >> Log.debug("Releasing JNDI resource " + name + "(" + this.is +
> >> ")")
> >> dispose(this.is)
> >> })
> >> }
>
> >> /**
> >> * Subclasses should override this method to provide initialization
> >> */
> >> protected def initialize(resource : T) {
> >> }
>
> >> /**
> >> * Subclasses should override this method to provide initialization
> >> */
> >> protected def dispose(resource: T) {
> >> }
> >> }
>
> >> Using the cleanupFunc like this was of course a complete hack to add the
> >> ability to do additional delgated initialization to the variable retrieved
> >> from the JNDI context. I can handle the initialization part by overriding
> >> setFunc in my new implementation, but how can I set up the delegation to
> >> dispose?
>
> >> Thanks,
>
> >> Kris
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