[postgis-devel] State of the postgis hibernate union?

[VanIngen, Erik (ESTG)]

Chris,

Thanks for your reaction! Good to have your idea on this as well because it
saves a lot of time for me. 

You might be very well right with your question about how to integrate
Geoserver with hibernate spatial whitout Geotools. That will be part of my
investigation. 

Kind Regards,
Erik van Ingen





-----Original Message-----
From: postgis-devel-bounces at postgis.refractions.net
[mailto:postgis-devel-bounces at postgis.refractions.net] On Behalf Of Chris
Hodgson
Sent: 09 October 2007 18:56
To: PostGIS Development Discussion
Subject: Re: [postgis-devel] State of the postgis hibernate union?



> (3) Geoserver/HibernateSpatial/Postgis
> We will starting the investigation on this soon. No results yet. Of 
> course the nicest and cleanest solution. My idea is that 
> HibernateSpatial is doing a very good job but it is very recent 
> software and not yet used in many systems. And I think they might be 
> the first with a proper implementation.

I don't know how you are going to skip geotools for this approach? 
Presumably you will still need a datastore. This won't change the 
problem you discovered in (2) - all this is, is a standard 
implementation of part of what you would need to do for (2) ie. 
postgis-enable hibernate.

> http://www.foss4g2007.org/presentations/view.php?abstract_id=118
> Not investigated, to me seems less clean than HibernateSpatial because 
> they reverse engineered from the database instead of starting from the 
> domain
> model(JTS)

Again, this is exactly what you would have to do for (2), the choice of 
reverse-engineering vs. annotations is really moot once you have decided 
on your model - it's just a question of whether you prefer to write SQL 
or Java, and then generate the other. In truth, we reverse engineered 
primarily because our data model is being accessed by other software 
than just hibernate, so it had to be exactly the way it was. We had 
already designed it with specific goals in mind, including high 
performance for our use cases, and we just wanted to use hibernate to 
access it. So reverse engineering was a very effective way to go.

Chris
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