O/R Mapper for dotnet

Has anyone in her got experience with O/R Mappers for dotnet?
Some of the requiriments could be
-Enterprise level
-Caching strategi
-Stability
-oracle support


I have been looking at the following:

http://ibatis.apache.org

http://msdn.microsoft.com/netframework/future/linq/

http://www.alachisoft.com/ncache/index.html

and NHibernate

/Klaus

Add
- Developer Express' XPO (v2 is in beta) and
- LLBLGenPro
- Paul Wilsons' ORMapper

I guess it depends on your needs.
And avoid DLinq for now as it is in *tech preview* phase only.

--
Miha Markic [MVP C#]
RightHand .NET consulting & development www.rthand.com
Blog: http://cs.rthand.com/blogs/blog_with_righthand/

"Klaus Hebsgaard" <khebbie@gmail.com> wrote in message
news:1139649196.965659.119940@o13g2000cwo.googlegroups.com...
> Has anyone in her got experience with O/R Mappers for dotnet?
> Some of the requiriments could be
> -Enterprise level
> -Caching strategi
> -Stability
> -oracle support
>
>
> I have been looking at the following:
>
> http://ibatis.apache.org
>
> http://msdn.microsoft.com/netframework/future/linq/
>
> http://www.alachisoft.com/ncache/index.html
>
> and NHibernate
>
> /Klaus
>

I want to download .net framework versio 2.0.50125 and I didn't find
is there some one who can help me?



*** Sent via Developersdex http://www.developersdex.com ***

Klaus Hebsgaard wrote:

> Has anyone in her got experience with O/R Mappers for dotnet?
> Some of the requiriments could be
> -Enterprise level

we have a lot of enterprise level users, and a lot of systems have
been made with LLBLGen Pro which have 500 tables/views or more (some
even 2500+ tables)

> -Caching strategi

Caching can be 'nice' but remember that caching is often not worth the
effort, for a couple of reasons:
- only in single entity fetches a cache can help you. If you fetch a
set of entities, you first always have to consult the persistent
storage, then pull in the entities not already in the cache, or refresh
the entities already in the cache. this is often slower.
- .NET doesn't have cross-appdomain object awareness. This means that
if your application works on a webfarm/ server farm, your code will
have to consult an external cache system, to be sure the objects are in
a cache or not. This means that this is AND slower, AND you effectively
re-do what's already build into every normal RDBMS: data cache.

> -Stability

Our code is very stable and mature (live since sept 2003). We also use
a policy where fixes have to be released a.s.a.p. so if a customer
reports an issue, a fix is available soon thereafter so you never have
to wait a long time for a service pack or quaterly roll up.

> -oracle support

We support oracle 8i-10g through ODP.NET.

Frans

--
------------------------------------------------------------------------
Get LLBLGen Pro, productive O/R mapping for .NET: http://www.llblgen.com
My .NET blog: http://weblogs.asp.net/fbouma
Microsoft MVP (C#)
------------------------------------------------------------------------

http://msdn.microsoft.com/netframework

"afifo_007 afifo_007" <afifo_007@yahoo.fr> wrote in message
news:urjwpvvLGHA.3260@TK2MSFTNGP11.phx.gbl...
>I want to download .net framework versio 2.0.50125 and I didn't find
> is there some one who can help me?
>
>
>
> *** Sent via Developersdex http://www.developersdex.com ***

I was going to recommend LLBLGenPro with an explanation of how it fits into
your scenario, but Frans has provided it straight from the horse's mouth. If
you look at his client list though, it's pretty clear it's quite applicable
for Enterprise scenarios and I don't know of a single LLBLGenPro user that
doesn't love it
"Klaus Hebsgaard" <khebbie@gmail.com> wrote in message
news:1139649196.965659.119940@o13g2000cwo.googlegroups.com...
> Has anyone in her got experience with O/R Mappers for dotnet?
> Some of the requiriments could be
> -Enterprise level
> -Caching strategi
> -Stability
> -oracle support
>
>
> I have been looking at the following:
>
> http://ibatis.apache.org
>
> http://msdn.microsoft.com/netframework/future/linq/
>
> http://www.alachisoft.com/ncache/index.html
>
> and NHibernate
>
> /Klaus
>

>Has anyone in her got experience with O/R Mappers for dotnet?
>and NHibernate

Yes, we've started using NHibernate a while ago and it works quite
well so far (for MS SQL Server, in our case). It definitely supports
Oracle, too, and being a port from Hibernate, it's quite mature and
well tested, too.

Marc

>>Has anyone in her got experience with O/R Mappers for dotnet?
>>and NHibernate

See Shawn "The ADO Guy" Wildermuth's article "Getting started with
NHibnerate" on DevSource for an excellent intro:

http://www.devsource.com/article2/0,1895,1925698,00.asp

Marc

OK, thanks for the input everyone.
I suppose the two to look at is:
NHibernate and LLBLGenPro.

Thank you.

/Klaus

Excuse me, but are you Frans Bouma somehow affiliated with LLBLGen?

If so, I think it would be appropiate for you to introduce yourself as
such!

If you are not in any way affiliated with LLBLGen please accecpt my
excuse in advance !!!

/Klaus