AR is very database centric and totally not domain centric

2009/4/8 Jason Meckley <[email protected]>

>
> I have used LLBL in the past before discovering NH. LLBL is a great
> tool for RAD development. The support is excellent, and the tools that
> come with the framework itself are great.
>
> So why would I move away from LLBL
> 1. unit testing and TDD. now it could also be I'm new to unit testing,
> TDD, etc. but the LLBL framework would get in the way of writing a
> unit test.
> 2. LLBL Entities require extranious members/inheritance that has
> nothing to do with my Domain. While moving towards DDD I found LLBL to
> add noise to the domain.
> 3. LLBL requires a database schema to generate the domain. I have
> really enjoyed the power of designing the database around the domain
> for greenfield projects. And the ability to map legacy DBs to a rich
> domain is great.
>
> LLBL definitely has a place in development. I consider it the
> "gateway" framework to escaping the DataSet nighmare. it was for me
> anyway. In closing. I find LLBL is database centric while NH/AR is
> domain centric.
>
> On Apr 7, 2:53 pm, novnov <[email protected]> wrote:
> > Wayne thank you it does help. LLBLGEN is one of the most commonly
> > praised ORMs, and I'd be curious to hear why you've moved to AR/NH? As
> > you say, tradeoffs on both sides, but I'd be curious to hear your
> > thoughts.
> >
> > Frankly I think we could use as much hand holding as possible. But the
> > Active Record examples are pretty straightforward. I am not sure how
> > versed in NHibernate we would need to become, that's a concern.
> >
> > Has anyone here checked out Entity Framework?
> >
> > I can see ORMs being a huge aid. We just never got exposure...so it's
> > more of a learning curve thing. We're effecient at what we do now, and
> > starting from zilch on a new stack is always a time drain at the
> > start.
> >
> > We're so new to flex that I'm afraid I can't offer you too much on
> > that. .Net and flex seem to go well together.
> >
> > On Apr 7, 2:10 am, Wayne Douglas <[email protected]> wrote:
> >
> > > Hey
> >
> > > First comment:
> >
> > > >So far we've been able to keep clear of ORMs
> >
> > > You make it sound like you've been trying to stay away from ORMs!!! ORM
> > > isn't a bad thing you need to stear clear of! Honestly :)
> >
> > > Second:
> >
> > > I come from an LLBLGEN background and have recently switched to AR/NH -
> to
> > > be honest - they both have their pros and cons but are both a million
> miles
> > > better than writting your own code for the purpose. They will both work
> with
> > > whatever .NET/CLI language you want. AR is about as simple as you'd
> want it
> > > and the only downer about everything being in C# is that if your guys
> aren't
> > > used to C# they may find some of the examples a bit foreign.
> >
> > > As a side - what's the workflow like working with flex in a .net
> > > environment? I've thought about this doing a few times.
> >
> > > hth
> >
> > > w://
> >
> > > On Sun, Apr 5, 2009 at 8:31 PM, novnov <[email protected]> wrote:
> >
> > > > This is really a scattershot question because I have little exposure
> > > > to ORMs and only vaguely formulated requirements.
> >
> > > > Some background...I like postgresql a lot and also use sql server and
> > > > oracle. I/we are usually responsible for all of the parts of an app,
> > > > from the rdbms to the user interface. We do a lot on Windows with
> .net
> > > > (visual basic) but are getting exposure to flex on the interface side
> > > > of things. So far we've been able to keep clear of ORMs and code
> > > > generators.
> >
> > > > A project is coming up which will need be be deployed against both
> > > > postgresql and oracle (different deploys). This may be forcing us to
> > > > use an ORM so that the interface is more independent of the rdbms.
> >
> > > > Is NHibernate and maybe Castle Project Active Record a good solution
> > > > for our needs? The ORM would not have to be open source, ie we could
> > > > buy something. We want it to be as simple to pick up and use as
> > > > possible. We don't want to lose the ability to execute procs in
> > > > postgres and I'm worried that nhibernate has that limitation, as the
> > > > front page states that stored procedures are supported for sql
> server.
> >
> > > > Finally, is Active Record ok with visual basic? Most if not all of
> the
> > > > examples are in C#.
> >
> > > --
> > > Cheers,
> >
> > > w://- Hide quoted text -
> >
> > > - Show quoted text -
> >
>

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