Jody Garnett ha scritto:
> I have an interesting stack trace reported from the udig-users list
>
> java.lang.NullPointerException
> at org.geotools.jdbc.JDBCDataStore.createConnection(JDBCDataStore.java:1420)
> at org.geotools.jdbc.JDBCDataStore.getConnection(JDBCDataStore.java:1377)
> at
> org.geotools.jdbc.JDBCFeatureSource.getCountInternal(JDBCFeatureSource.java:404)
> at
> org.geotools.data.store.ContentFeatureSource.getCount(ContentFeatureSource.java:409)
> at
> org.geotools.jdbc.JDBCFeatureStore.getCountInternal(JDBCFeatureStore.java:172)
> at
> org.geotools.data.store.ContentFeatureSource.getCount(ContentFeatureSource.java:409)
> at
> org.geotools.data.store.ContentFeatureCollection.size(ContentFeatureCollection.java:290)
> at
> org.geotools.feature.collection.DecoratingFeatureCollection.size(DecoratingFeatureCollection.java:168)
> at net.refractions.udig.ui.FeatureTableContentProvider
>
> Hunting down the code it appears as:
>
> JDBCTransactionState tstate = (JDBCTransactionState)
> t.getState(this);
> if(tstate != null) {
> return tstate.cx;
> } else {
> Connection cx = createConnection();
> try {
> cx.setAutoCommit(false); /// <---- ERROR OCCURS HERE
> } catch (SQLException e) {
> throw (IOException) new IOException().initCause(e);
> }
>
>
>
> tstate = new JDBCTransactionState(cx, this);
> t.putState(this, tstate);
> return cx;
> }
>
> So it looks like createConnection() is failing; and returning null
> rather then an exception?
>
> Looking at the implementation it is mostly a direct call to datasource
> getConnection(); is there any reason why that would return null for postgis?
None that I can think off the top of my head. Debugging or code
inspection is very likely needed
Cheers
Andrea
--
Andrea Aime
OpenGeo - http://opengeo.org
Expert service straight from the developers.
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