I see the difficulty; let me try and help. You are correct that a new PostGISServiceImpl would be created here; what you need to do is: 1. ask this instance for its ID 2. lookup that ID in the catalog 3. if found use what you found; if not you can add the instance you just made to the catalog and continue
I need to think of a smoother way to generate an ID for a set of parameters :-( On the bright side the PostGISServiceImpl will not do anything until you try and call the resolve method for the first time. Jody On Tue, Feb 17, 2009 at 3:20 AM, Alessandro Sferrazza < [email protected]> wrote: > > Hi to all, > > I need PostGISServiceImpl to execute some query from my postgis db. > > I tried this: > > PostgisDataStore database; > > java.util.Map<String, Serializable> params = new java.util.HashMap<String, > Serializable>(); > params.put(PostgisDataStoreFactory.DBTYPE.key, "postgis"); > params.put(PostgisDataStoreFactory.HOST.key, "localhost"); > params.put(PostgisDataStoreFactory.PORT.key, 5432); > params.put(PostgisDataStoreFactory.SCHEMA.key, "public"); > params.put(PostgisDataStoreFactory.DATABASE.key, "xxx"); > params.put(PostgisDataStoreFactory.USER.key, "XXX"); > params.put(PostgisDataStoreFactory.PASSWD.key, "XXX"); > > IServiceFactory factory = CatalogPlugin.getDefault().getServiceFactory(); > for (IService service : factory.createService(params)) { > if (service.canResolve(PostgisDataStore.class)) { > try { > database = service.resolve(PostgisDataStore.class, > new > NullProgressMonitor()); > } catch (Exception e) { > e.printStackTrace(); > } > } > } > > and this > > PostgisDataStoreFactory dsf = new PostgisDataStoreFactory(); > if (dsf.canProcess(params)) { > try { > ds = (PostgisDataStore) dsf.createDataStore(params); > } catch (IOException e) { > msg = e; > throw e; > } > > but that will create a new connection, while I would like to continue using > udig connection. > > Thanks in advance for any replies. > -- > View this message in context: > http://www.nabble.com/Get-PostGISServiceImpl-tp22040381p22040381.html > Sent from the udig-devel mailing list archive at Nabble.com. > > _______________________________________________ > User-friendly Desktop Internet GIS (uDig) > http://udig.refractions.net > http://lists.refractions.net/mailman/listinfo/udig-devel >
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