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Re: InstantDB: Update not realized immediately (Addendum)


Christian

Is http://instantdb.enhydra.org/software/documentation/warnings.html
relevant here?

Regards

Pete

--

Peter Hearty                         peter.hearty@lutris.com
Lutris Technologies (UK)        http://www.lutris.com
----- Original Message -----
From: "Christian Cryder" <christian.cryder@lutris.com>
To: <instantDB@enhydra.org>
Sent: Monday, November 20, 2000 6:55 PM
Subject: RE: InstantDB: Update not realized immediately (Addendum)


> Just an additional note: I just duplicated this with raw JDBC as well (no
> Enhydra classes in the equation) so I'm 99.9% sure this is an IDB issue.
>
> Explanations welcome.
>
> Thanks,
> Christian
> ------------------------------------------------
> Christian Cryder
> Software Engineer, Rocks
> Lutris Technologies, Inc.
> christianc@lutris.com
> ------------------------------------------------
>        "What a great time to be a Geek"
> ------------------------------------------------
>  http://www.lutris.com ~ http://xmlc.enhydra.org
>
>
> > -----Original Message-----
> > From: owner-instantDB@enhydra.org [mailto:owner-instantDB@enhydra.org]On
> > Behalf Of Christian Cryder
> > Sent: Monday, November 20, 2000 10:42 AM
> > To: InstantDB
> > Subject: InstantDB: Update not realized immediately
> >
> >
> > Hi folks,
> >
> > Here's something I noticed with InstantDB this morning (latest version).
> >
> > Let's say I have 2 processes connected to a database. If proc 2 updates
a
> > row, proc 1 never sees the change until it first disconnects and then
> > reconnects to the database. For instance, here's a sample sequence:
> >
> > Proc 1 --> select * from ObjectID (Result: next=1000040)
> > Proc 2 --> update objectid set next = 1000039
> > Proc 1 --> select * from ObjectID (Result: next=1000040)
> > Proc 1 --> Disconnect/reconnect to DB
> > Proc 1 --> select * from ObjectID (Result: next=1000039)
> >
> > This doesn't seem correct. Can anyone explain this to me?
> >
> > Please note, I'm doing updates/queries using the Enhydra
> > DBConnection class
> > like this:
> >
> >   (Proc 1)
> >   DBConnection conn = Enhydra.getDatabaseManager().allocateConnection();
> >   ResultSet rs = conn.executeQuery("SELECT * FROM Person");
> >
> >   (Proc 2)
> >   int rows = conn.executeUpdate("update objectid set next = 1000039");
> >   conn.commit();
> >
> > Am I misusing the Enhydra DBConnection class? Or is something
> > strange going
> > on with InstantDB?
> >
> > Thanks,
> > Christian
> > ------------------------------------------------
> > Christian Cryder
> > Software Engineer, Rocks
> > Lutris Technologies, Inc.
> > christianc@lutris.com
> > ------------------------------------------------
> >        "What a great time to be a Geek"
> > ------------------------------------------------
> >  http://www.lutris.com ~ http://xmlc.enhydra.org
> >
> >
> > ------------------------------------------------------------------
> > -----------
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>
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