Thanks for the rapid response, I am not completely convinced that these two
problems are exactly the same. As I understand the detailed problem that
Alan sent simply calling run after the retract should clear the agenda
appropriately. Below is the code that causes the problem:
Rete r = GMain.instance().getEngine()
//retract fact of unserializable object
r.undefinstance(Federate.instance().getFedTime());
//actually do this (beware other rules may fire as well)
r.run();
//Serialize the Rete Engine
SaveRestoreHelper.writeObject(r);
The max run is not being hit during this process, (at least in my test
case). Its likely I just don't completely understand the problem Alan
described or it might be a mixture of two issues. Any help/thoughts are much
appreciated.
Thanks,
Jim
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of [EMAIL PROTECTED]
Sent: Thursday, July 18, 2002 8:11 PM
To: [EMAIL PROTECTED]
Subject: Re: JESS: retracted facts seem to hang around
I think James Gallogly wrote:
>
> My goal is to serialize the Rete. I am definstanceing a Fact based off of
a
> non-serializble object, doing a bunch of stuff, then undefinstancing the
> non-serializble objects Fact just before Serializing the Rete. I get an
> exception thrown saying it was unable to Serialize the non-serializable
> object. This implies that somehow a reference to this retracted fact is
> hanging around in the Rete and is attempting to be serialized.
>
Thanks for the report; see below:
And I also think Alan Moore wrote:
> I don't know if there is a problem beyond what is described in
> Ernest's earlier post but this should clear some things up for you (I
> am including the post here since I couldn't find a link to it in the
> archives... go figure):
Good call Alan; this is almost certainly the cause of Mr. Gallogly's
problem. I should be able to fix this for 6.1a3, which shouldn't be
too far in the future. One way to fix it without disturbing anything
at runtime would be to add an Agenda.writeObject() which removed
any deactivated Activation objects.
---------------------------------------------------------
Ernest Friedman-Hill
Distributed Systems Research Phone: (925) 294-2154
Sandia National Labs FAX: (925) 294-2234
Org. 8920, MS 9012 [EMAIL PROTECTED]
PO Box 969 http://herzberg.ca.sandia.gov
Livermore, CA 94550
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