Hi Jody, Perhaps I should find out what is involved in creating a new DataStore.
I scanned the developer docs but did not get a comfortable sense of how to create a new DataStore. Can you give a high level sketch of what it would take to implement a HibernateSpatialDataStore. Based on your experience what kind of effort do you think it will be for someone new to geotools? Thanks. Farrukh Najmi wrote: > Thank for the feedback. I might consider the hibernate-spatial community > module after I am a little more familiar with geotools code base. Right > now I am too much of a newbie. > > Jody Garnett wrote: > >> Go for it; we have made a GeoTools datastore for hibernate previously >> (on a commercial project) we ended up using the existing geotools >> expression writing code to supplement the hibernate Criteria as I recall. >> >> There are a couple of tricks: >> - Hibernate is good at getting back entire objects; often when working >> with Features at speed you only want to get back a couple of the >> attributes (say the geometry and the attributes needed for styling). >> So it was a good plan to integrate with hibernate at a lower level >> than Object access >> - GIS data is sometimes very large; so treating your Features as >> objects does not always scale; you will find that most of the GeoTools >> code supports some kind of "streaming" across the data rather then >> loading it into memory >> >> As for hibernate-spatial, why not start up a community module? The >> GeoTools dev team is here to help you get going. >> Jody >> >> Farrukh Najmi wrote: >> >>> The hibernate spatial project [1] project provides some degree of >>> spatial database independence and leverages hibernate which in turn >>> leverages Java Persistence API. >>> >>> Has the geotools dev team considered using hibernate spatial for db >>> access? If so, I would be interested in the archived discussion and >>> current plans. Thanks. >>> >>> [1] Hibernate Spatial >>> http://www.hibernatespatial.org/ >>> >>> >>> > > > -- Regards, Farrukh Najmi Web: http://www.wellfleetsoftware.com ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Geotools-gt2-users mailing list Geotools-gt2-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
