Re: [Geotools-devel] ArcSDE Single Session mode

[Gabriel R. <gr...@op...>]

On Wednesday 21 May 2008 06:51:31 am Jody Garnett wrote:
> Gabriel I ended up modifying your Session contact with the taskExecutor;
> I needed to store Thread being used so I could detect command recursion.
yeah I saw it and liked it.
I've been trying to avoid command recursion explicitly but like better this 
approach, so I changed back all the static issueXXX utility methods by 
instance methods that just issue a command and let the issue(Command) method 
decide whether it needs to be scheduled or not. Good work

Gabriel
>
> Cheers,
> Jody
>
> > Hi Gabriel; I see you put the command queue in - nice work.
> >
> > I have broken out the Transaction.State use into two:
> > - ArcTransactionState has the feature event notification and versioned
> > flag and is stored against the DataStore
> > - SessionTransactionState holds the Session and is stored against the
> > connectionPool
> >
> > ArcSDEConnectionPool has the following methods:
> > - getSession(); used to lease a Session from the pool
> > - getSession( Transaction ); used to access the Session for the provided
> > Transaction
> > - issueReadOnlyCommand( Command )
> >
> > The last method is why I signed up for this work; the
> > ArcSDEConnectionReference subclass of ConnectionPool remembers the
> > single Session in use and will use it to issue read-only commands. If
> > you can review; I have changed a single bit of functionality over to use
> > issueReadOnlyCommand; the ArcSDEAdapter.fetSchema method can serve as an
> > example of what needs to be done.
> >
> > Jody
> >
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