Hi guys,
Just bumping in here to tell the "whole" story about the needed
dependencies.
Here are the reasons for ever neededing any hibernate specific stuff on a
"client" side:
1. Managing persistent collections
To track how a collection mutates so when the object comes back to the
server
hibernate can be more efficient when detecting and executing changes.
2. Handle lazy loaded objects
If lazy="true" on a class (it is by default) the object can be a simple
proxied
shell only containing the id. This allows us to use the object in
associations
without loading it (e.g. child.setParent(proxiedParent);) and to throw
an exception
if it is accessed without being previously loaded or in a session (e.g.
proxiedParent.getName() goes boom)
#1 does not require proxy libraries AFAIK but I have not tested it.
#2 requires the proxy libraries (in 3.2 either javaassist or cglib), I
don't know if it is feasible
to generate something that is not dependent on the proxy library and
still be able to reassociate it
when it comes back to the server.
These are important issues that should be handled in Hibernate 3.2 if at
all possible. (cc'ed steve)
/max
For the remote proxies and associated aspects yes, but I don't want
proxy stuff leaking for no good reason. A proxy that can only be used to
cause an exception to be thrown is not a good reason to introduce a new
library dependency on the client. If this was already javassist I would
not have a problem since we likely want an aop container on the client.
Leaking asm/cglib is not something I want to have to do.
________________________________
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Clebert Suconic
Sent: Wednesday, February 15, 2006 5:41 PM
To: jboss-development@lists.sourceforge.net;
jboss-development@lists.sourceforge.net
Subject: RE: [JBoss-dev] client libraries on EJB3
we will need a proxy framework anyways, right?
if we replace cglib by something else (aop, javassist maybe) I
guess it would be the same on that point, and besides it would require
some work.
--
--
Max Rydahl Andersen
callto://max.rydahl.andersen
Hibernate
[EMAIL PROTECTED]
http://hibernate.org
JBoss Inc
[EMAIL PROTECTED]
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