Re: OScheduler

Shouldn't we agree then upon an OpenSymphony 'standard' for pluggable
persistence? And perhaps put this in a seperate component? Otherwise some OS
projects will support this technology, and other that technology, but there
won't be a synergy.

Mathias

----- Original Message -----
From: "Patrick Lightbody" <[email protected]>
To: <[email protected]>
Sent: Sunday, January 11, 2004 10:31 PM
Subject: RE: [Opensymphony-developers] OScheduler


> James was offered to join OpenSymphony and the offer was never
> retracted. Quartz is a great product and we'd be lucky to have him
> contribute to OpenSymphony as a whole by adding another great product.
> As for your three questions, I don't see how the third one really
> matters. Re: the package name... yes, we'd like for it to be
> com.opensymphony.quartz, though that could happen later (like during a
> major release) as to not upset a current release branch (1.x, for
> example).
>
> With regards to the simplicity, I've used (and dug deep in to the code)
> Quartz pretty extensively, and I would be happy to see it with OS.  We
> have projects ranging from simple (OSCore, SiteMesh, OSCache) to much
> more complex (OSWorkflow, WebWork, OSUser). I think Quartz would fit on
> the more complex side of the curve, but that's OK.
>
> The only thing I'd like to see with Quartz in the future is pluggable
> persistence (in the style of OSWorkflow -- it seems to be a pretty
> popular "feature").
>
> Anyway, James, I think if you joined up with OpenSymphony you'd be very
> welcome. Mathias, Hani, and I would probably be very eager to help you
> out wherever possible. And I'm sure Mathias' scheduler has a lot of good
> ideas you can integrate in with 2.0.
>
> -Pat
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf
> Of Mathias Bogaert
> Sent: Sunday, January 11, 2004 12:27 PM
> To: [email protected]
> Subject: Re: [Opensymphony-developers] OScheduler
>
> I'm still waiting for an answer of James.
>
> Mathias
>
> ----- Original Message -----
> From: "Matthew E.Porter" <[email protected]>
> To: <[email protected]>
> Sent: Sunday, January 11, 2004 4:33 PM
> Subject: Re: [Opensymphony-developers] OScheduler
>
>
> > Has there been any more progress in either of these being adopted by
> OS?
> >
> >
> > Cheers,
> >    matthew
> >
> > On Jan 9, 2004, at 5:59 PM, Mathias Bogaert wrote:
> >
> > > James,
> > >
> > > The scheduler I created is *much* more simple (and thus *much* less
> > > features) than Quartz. I didn't even consider clustering,
> > > 'prioritization of
> > > job firing', and most of the other (exotic) Quartz features. I just
>
> > > needed a
> > > fairly simple scheduler that could persist my jobs *using
> Hibernate*.
> > > To be
> > > frank, I currently don't have much time left to work on issues like
>
> > > that, so
> > > I would very much appreciate a collaborative effort.
> > >
> > > Here are some concrete questions for you:
> > >
> > > 1. OS components are lean and mean, so I'm not sure some of Quartz
> > > features
> > > will 'fit' in, e.g. RMI, how do you see this?
> > > 2. The package should be com.opensymphony.quartz, objections?
> > > 3. What are your main motivations for moving to OS now and not
> before?
> > >
> > > Cheers,
> > > Mathias
> > >
> > > ----- Original Message -----
> > > From: "James House" <[email protected]>
> > > To: <[email protected]>
> > > Sent: Friday, January 09, 2004 9:44 PM
> > > Subject: Re: [Opensymphony-developers] OScheduler
> > >
> > >
> > >>
> > >> Matthias,
> > >>
> > >> James here (primary developer of Quartz).  I don't know if your
> > >> interested or not, but I've had a full new design of Quartz (Quartz
>
> > >> 2.0)
> > >> getting dusty for several months no, and was getting ready to
> actually
> > >> dig in and build the thing (The work is about 20% done, and the
> > >> changes
> > >> include: a significantly improved/changed API, usage of Hibernate
> for
> > >> persistence, over-hauled clustering features, re-thinking of how
> > >> guarantees and prioritization of job firings (and misfirings)
> occur,
> > >> etc.).   In the past I had been invited to join Quartz under the OS
> > >> umbrella, and had declined, but I was actually planning to write an
> > >> e-mail to Patrick in the next week or so and ask if I'm still
> welcome,
> > >> and see if anyone wants to help...  I'm also interested in leaving
> > >> SourceForge and moving java.net.
> > >>
> > >> Anyway what are your thoughts on a collaborative effort?
> > >>
> > >> james
> > >>
> > >>
> > >> Hani Suleiman wrote:
> > >>
> > >>> Yep, that's what I was going to propose. xml, ejb, and memory.
> > >>>
> > >>> Mathias Bogaert wrote:
> > >>>
> > >>>> I'm not a big fan of multiple persistence mechanisms (look at the
>
> > >>>> many
> > >>>> problems with it in OSUser/OSAccess). Hibernate supports all
> kinds
> > >>>> of
> > >>>> databases, so no problem there. And offcourse, the API allows to
> > >>>> plug, but
> > >>>> except for perhaps an XML and EJB one, I don't think we should
> add
> > > more.
> > >>>>
> > >>>> Mathias
> > >>>>
> > >>>> ----- Original Message -----
> > >>>> From: "Hani Suleiman" <[email protected]>
> > >>>> To: <[email protected]>
> > >>>> Sent: Friday, January 09, 2004 9:17 PM
> > >>>> Subject: Re: [Opensymphony-developers] OScheduler
> > >>>>
> > >>>>
> > >>>>
> > >>>>> Yes! Although the one thing that is glaringly missing from your
> > >>>>> description is support for multiple persistence mechanisms, so
> any
> > >>>>> objections to adding that in?
> > >>>>>
> > >>>>> Anyway, big +1 from me for having such a component, as long as
> it
> > >>>>> follows the same principles as all the others (few dependencies,
> > >>>>> optional support for stuff, etc etc).
> > >>>>>
> > >>>>> Mathias Bogaert wrote:
> > >>>>>
> > >>>>>
> > >>>>>> Guys,
> > >>>>>>
> > >>>>>> Over the last month, I've written a scheduler (like Quartz),
> but
> > >>>>>> with
> > >>>>>
> > >>>>
> > >>>> much
> > >>>>
> > >>>>>> cleaner interfaces, based on java.util.Timer, lot of the same
> > >>>>>> principals
> > >>>>>
> > >>>>
> > >>>> as
> > >>>>
> > >>>>>> XWork (Job, JobSupport, JobInvocation, interceptors, etc),
> using
> > >>>>>> the
> > >>>>>
> > >>>>
> > >>>> cron
> > >>>>
> > >>>>>> parser from OSCache, with Hibernate as backing store for
> storing
> > >>>>>> jobs
> > >>>>>
> > >>>>
> > >>>> and
> > >>>>
> > >>>>>> job parameters (that are set on a job having setters). Startup
> > >>>>>> through a
> > >>>>>> context listener. The documentation is a work in progress, and
>
> > >>>>>> it's
> > >>>>>> not
> > >>>>>
> > >>>>
> > >>>> very
> > >>>>
> > >>>>>> well tested (almost zero unit tests, I'm not into TDD yet).
> > >>>>>>
> > >>>>>> I've been thinking about releasing it as open source, and I'm
> > >>>>>> wondering
> > >>>>>
> > >>>>
> > >>>> if
> > >>>>
> > >>>>>> OpenSymphony would be interested. Offcourse any better name or
>
> > >>>>>> other
> > >>>>>> suggestions are appreciated.
> > >>>>>>
> > >>>>>> Mathias Bogaert
> > >>>>>>
> > >>>>>>
> > >>>>>>
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