On Tue, 6 Mar 2001, Doug Ferguson wrote:
> I sent to DEV because there was a code question at the bottom.
>
> I am mainly interested to know how to take something that
> is stored in the browsers i.e a number and translate that into
> a handle for a particular bean.
Someone posted offering code to serialize an object to a string - it
sounds like a good option to me. I don't know how to do this without
looking through doco for a while.
[snip]
> Additionally, I am looking to see if there is anyway to have control
> over the Handle. (i.e. If I code a mechanism to distribute my stateful
> session bean across all my servers then I want them to have
> the same handles.
You would need to re-write some of the server stuff to allow this (like
the handle implementation, for a start) I think.
Tom
> Tom Cook wrote:
>
> > Please don't cc this sort of question to both lists - I leave it to your
> > discretion as to which list future posts belong to, but it seems like a
> > user question to me.
> >
> > The normal way would be to start an HTTP session in the servlet and that
> > takes care of the session ID stuff for you. Obviously your clustering
> > isn't going to handle this, so your options go something like this:
> >
> > * You could implement an RMI server which maps IDs to stateful session
> > beans.
> > * You could set up one EJB server to just serve up these references.
> >
> > Either way, your clustering solution ought to take care of this and
> > distribute sessions across the tomcat instances.
> >
> > Tom
> >
> > On Mon, 5 Mar 2001, Doug Ferguson wrote:
> >
> > > Hi,
> > >
> > > I am currently working on a project and I have one Stateful session bean
> > > that contains login information,
> > > so that I can query this object for my JAAS login and I also use this
> > > object to cache information for a
> > > particular session. I would like to store a session cookie in the users
> > > browser and use this ID to lookup
> > > the stateful session bean, however, I am not sure how I will map this ID
> > > to a Handle object. If anyone
> > > has done this or has ideas, they would be appreciated.
> > >
> > > One thing that slightly complicates things is that we are implementing a
> > > round robin load balancing pool
> > > on the apache/tomcat servers and we are also doing the same on the jBoss
> > > servers. We only have one
> > > bean that is Stateful and we plan on implementing some sort of
> > > "make-shift clustering" So that when we
> > > create a bean the bean is distrubuted across all the instances of jBoss.
> > > Any ideas, here would be useful.
> > >
> > >
> > > Also,
> > >
> > > From the StatefulHandleImpl.java what is the utility of the method
> > > pointer to
> > > an interface?
> > > *******************************************************************
> > > static Method getEJBObjectMethod;
> > >
> > > static {
> > > try {
> > >
> > > getEJBObjectMethod =
> > > Class.forName("javax.ejb.Handle").getMethod("getEJBObject", new
> > > Class[0]);
> > > }
> > > catch (Exception e) {
> > > e.printStackTrace();
> > > }
> > > }
> > >
> > >
> > >
> >
> > --
> > "If you mess with something for long enough it will break." - Schmidt
> >
> > --
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"If you mess with something for long enough it will break." - Schmidt
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