> I'm looking around to find something similar to
> Container-Managed Persistence (CMP, from the Java world) in
> the .NET world.
>
> I've got this idea because I've just finished to code
> interfaces and services that help to code persistence for
> entity objects just like Bean- Managed Persistence (BMP, from
> the Java world). CMP is one step over, it gives a
> declarative way to develop object persistence.
Because COM+ and MTS are stateless frameworks, I don't think a
lot of people are willing to go for a stateful persistent framework,
it's too easy to go the stateless route.
> I think it's a big project to develop CMP-like framework (or code
> generator) by myself , I cannot afford it!
> So I would like to know if there is a *good* open source
> project out there or if Microsoft is going to do something
> similar to CMP.
> I've heard rumors about Microsoft OpenSpaces, but it seams to
> be more similar to JDO than CMP, I've also seen open-source
> projects in SourceForge.net but none of them seams to meet
> wide community acceptance.
Are you refering to Object Spaces, btw?
Object Spaces was a nice rumour, however I never saw it working.
The newsgroup is not that active either :(. As a code generator
developer (LLBLGen) I'm very interested in the functionality of Object
Spaces, because it makes code generation for tier-stack applications
easier. However, because most developers who are already developing
n-tier applications on Microsoft platforms are used to work with
stateless environments, I don't think a lot of people will go for a
stateful approach.
> What are you doing about persistence?
Nothing really, I only see the benefits for stateful code in 1-
or 2-tier single user clients.
> Do you know more about OpenSpaces (design, db support,
> release date, licensing)?
afaik it was a research project that was never developed into a
product.
FB
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Senior Software Engineer @ Solutions Design : http://www.sd.nl
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