NH-3087 - Add support for multi tenancy

[nhibernate-bot]

Paul White created an issue — 13th March 2012, 21:19:19:

Hibernate now supports multi tenancy, documented here: http://docs.jboss.org/hibernate/core/4.1/devguide/en-US/html/ch16.html#d5e4642

The feature was tracked in Jira here: https://hibernate.atlassian.net/browse/HHH-5697
Related commits here

Hopefully something similar can be implemented for NHibernate

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Paul White added a comment — 14th March 2012, 15:03:24:

I have forked NHibernate Core to start work on this: https://github.com/IronsUK/nhibernate-core

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Paul White added a comment — 17th April 2012, 8:07:57:

I created a pull request for some initial work around this: #91

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Oskar Berggren added a comment — 26th May 2012, 20:26:10:

Pull request 91 partially merged. The remained cleaned up and available at https://github.com/oskarb/nhibernate-core/tree/NH-3087-prelim.

[devalot76]

Hi,
any news about this?

[fredericDelaporte]

As far as I know, no one works on this. It is up to grab.

[devalot76]

As far as I know, no one works on this. It is up to grab.

And I honestly struggle to understand why: has anyone ever heard of SaaS? Has anyone ever had the need to develop this type of applications?

[gliljas]

And I honestly struggle to understand why: has anyone ever heard of SaaS? Has anyone ever had the need to develop this type of applications?

Absolutely. We do it on quite a large scale, but configure separate session factories for each tenant.

[devalot76]

And I honestly struggle to understand why: has anyone ever heard of SaaS? Has anyone ever had the need to develop this type of applications?

Absolutely. We do it on quite a large scale, but configure separate session factories for each tenant.

Can you share some code, please? I've heared that this approach takes a lot of memory; in addition, session factory creation is an expensive operations: how does this impact the performance? Thank you.

[gliljas]

There's really nothing to it. We cache the "shared" Configuration, augment it with tenant specifics and just create sessionfactories which are resolved using IoC.

Yes, it consumes memory. Yes, factory creation is expensive. It's really not a problem for us.