[postgis-users] PostgreSQL/PostGIS and ArcGIS Server 9.3
bclay at ball.com
Fri May 23 11:56:03 PDT 2008
Any chance that PostGres/PostGis will work with ArcSDE Personal Edition?
From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of Tim
Sent: Friday, May 23, 2008 2:44 PM
To: PostGIS Users Discussion
Subject: Re: [postgis-users] PostgreSQL/PostGIS and ArcGIS Server 9.3
On Fri, 2008-05-23 at 11:13 -0700, Paul Ramsey wrote:
> On Fri, May 23, 2008 at 11:05 AM, Tim Bowden
<tim.bowden at westnet.com.au> wrote:
> >> In general, if you restrict yourself ot reading with 3rd party
> >> and writing with ESRI tools, or non-ESRI tools working through the
> >> API, you should be safe.
> > So how much of the API is published? My (very limited)
> > that it's not quite simple, but how complex can it really be to
> > implement an abstraction layer that allows open source clients to
> > like ArcGIS clients (full read/write)?
> The SDE client API all published, and Geotools in particular has
> worked on having a pretty complete support for it. Recent work has
> even been looking at supported versioned edits to SDE in Geotools.
> Unversioned edits have been supported for some time. The only hidden,
> non-technical, downside is that the SDE license manager only allows 5
> non-ESRI clients to connect by default, so you have to be judicious in
> what you connect to the server.
Well that maybe opens up the possibilities. Call me a dreamer if you
want but what if you could do multi-master between a PostgreSQL/PostGIS
and SDE (on anything) using two stage commit with geotools as the basis
of a piece of middleware managing the connections. Put
update/insert/delete triggers in both SDE/whatever and
PostgreSQL/PostGIS that call the "multi-master" middleware and all of a
sudden (well, after appropriate non trivial dev work) you've broken the
strangle hold of the SDE engine on your enterprise. There would be
issues mapping data types (spatial and non-spatial) with different
definitions between the systems which would need to be managed. I
imagine you can shoot this idea down fairly easily, but at least you'll
increase my understanding in doing so :-)
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