From: | Dave Cramer <pg(at)fastcrypt(dot)com> |
---|---|
To: | Andrew Gaul <gaul(at)maginatics(dot)com> |
Cc: | List <pgsql-jdbc(at)postgresql(dot)org> |
Subject: | Re: JDBC lint |
Date: | 2013-12-04 20:45:08 |
Message-ID: | CADK3HHJahhWqVe0AneMnayhaEwV_jm8LQMpDEs=t3FBskotD9g@mail.gmail.com |
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Lists: | pgsql-jdbc |
Andrew,
The discussion you referenced is actually the jdbc code itself use of
finalizers and closing resources
Dave Cramer
dave.cramer(at)credativ(dot)ca
http://www.credativ.ca
On Wed, Dec 4, 2013 at 3:41 PM, Andrew Gaul <gaul(at)maginatics(dot)com> wrote:
> JDBC lint does not fix JDBC driver use of finalization, instead it
> informs users that they did not explicitly close a resource. Users
> explicitly closing allows the finalizer thread to quickly return if a
> resource has already closed, instead of doing a heavyweight resource
> deallocation. This tends to have better behavior since the JVM has a
> limited number of finalizer threads.
>
> On Wed, Dec 04, 2013 at 03:14:58PM -0500, Dave Cramer wrote:
> > Andrew,
> >
> > How would this fix the jdbc drivers use of finalizers ?
> >
> > Dave Cramer
> >
> > dave.cramer(at)credativ(dot)ca
> > http://www.credativ.ca
> >
> >
> > On Wed, Dec 4, 2013 at 2:37 PM, Andrew Gaul <gaul(at)maginatics(dot)com> wrote:
> >
> > > JDBC lint helps Java programmers write correct and efficient code when
> > > using the JDBC API. This includes resource management, e.g., missing
> > > Connection.close, incorrect use of JDBC, e.g., Statement.addBatch
> > > without Statement.executeBatch, and potential optimizations, e.g.,
> > > unread ResultSet columns. JDBC lint wraps DataSource and Connection
> and
> > > via dynamic proxy classes and thus has compatibility with all
> > > applications using JDBC. I tested against H2, MySQL, and PostgreSQL
> and
> > > hope users find this helpful:
> > >
> > > https://github.com/maginatics/jdbclint
> > >
> > > JDBC lint might help address issues discussed in the thread,
> > > "Remove usage of finalizers?":
> > >
> > >
> > >
> http://www.postgresql.org/message-id/9E5438C0-0A2E-4543-BE06-1E7A6D0E3B83@pilhuhn.de
> > >
> > > I appreciate any feedback!
> > >
> > > --
> > > Andrew Gaul
> > > http://maginatics.com/
> > >
> > >
> > > --
> > > Sent via pgsql-jdbc mailing list (pgsql-jdbc(at)postgresql(dot)org)
> > > To make changes to your subscription:
> > > http://www.postgresql.org/mailpref/pgsql-jdbc
> > >
>
> --
> Andrew Gaul
> http://maginatics.com/
>
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