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From Alvaro Coronel <alvarocorone...@yahoo.com>
Subject Re: Torque features I've added in a forked tree... Merge into main?
Date Fri, 19 Aug 2005 01:52:40 GMT
Man, this rocks!!

Congratulations,
Álvaro.

--- Kevin Burton <burtonator@gmail.com> wrote:

> OK.
> 
> I've been working on a forked version of Torque for
> a while now. 
> Probably around two years.  I didn't intend for it
> to get THIS bad but
> it has.  The main problem was I was sooo busy
> working on my main app
> that I never had a chance to contribute back the
> changes.
> 
> Anyway.  I'm starting to work on some new projects
> and figured this
> was a good enough time as any to correct this
> problem.
> 
> I'm going to try to dig into the Torque sources to
> see about the
> current status but I thought I'd post a list of the
> features I've
> added.  I still have to review my code but I think
> this is pretty much
> everything.
> 
> • prejoin support and the prejoin API.  This allows
> you to fetch all
> the object references for a list of objects at once.
>  For MySQL (and I
> assume other databases) this has a significant
> performance advantage. 
> Every SQL call costs about 1ms so for a list of 1000
> items this can
> save 999ms.
> • support for prepared statements (which are MUCH
> faster in MySQL)
> • when performing an UPDATE/INSERT only send columns
> that have been modified
> • client-side join for IN clauses by specifying a
> List of BaseObjects
> which have their getId() method called.
> • lazy result set processing.  For example if you
> have a table with
> 10000 columns and you only call getColumnA() then we
> don't have to
> fetch the remaining columns.  This has a HUGE
> performance advantage at
> runtime.
> • New database connection pool called BDCP which is
> simple to
> debug/understand, FAST, and reliable.  We had
> countless problems with
> DBCP.
> • save() should update the identity of the object
> with ID that was
> generated on the server.
> • BETA support for memcached. This means you can
> call retrieveById and
> the prejoin API and have the results come from
> memcache and NOT from a
> SQL box.  This should theoretically be much faster
> but I'm still
> working on it.  The results were actually 4x slower
> but I'm optimistic
> that I can have this fixed.
> • REPLACE support for MySQL
> • Support for working in MASTER/SLAVE environments
> when working with
> MySQL.  save() and doUpdate, doInsert, etc work on a
> dedicated
> connection to the master while SELECTs perform on
> another dedicated
> connection. The SLAVE connection could also be used
> with a load
> balancer if necessary.
> • doSelectFirstRecord which returns the object type
> instead of just
> Object when you know there will only ever be one
> result.  This is just
> syntactic sugar and prevents casting.
> • Support for a HashList mechanism where I can take
> a left join and
> make it into a Map where the keys are the left most
> column and the
> values are a list of all the items in that key. 
> This really helps for
> tree structures since SQL can't return hierarchical
> structures. This
> mechansim only supports on level of nesting right
> now.
> • doSelectAsHashMap which can take a column, and a
> query, and return
> the result as a HashMap instead of just a regular
> List.
> 
> -- 
>  Kevin A. Burton, Location - San Francisco, CA
>       AIM/YIM - sfburtonator,  Web -
> http://www.feedblog.org/
> GPG fingerprint: 5FB2 F3E2 760E 70A8 6174 D393 E84D
> 8D04 99F1 4412
> 


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