Hi Jeff, From the lines in the stack trace, looks like context.getObjectStore().getDataRowCache() returns null, causing an NPE downstream. Now wondering why that can happen... Are you serializaing/deserializaing your DataContext?
Andrus On Oct 6, 2010, at 9:04 PM, Rorison, Jeff wrote: > I am using 3.0 (final) and am having some issues using > context.createFromDataRow(...) > > ObjectResolver is throwing an NPE on what looks like updating snapshots. > > > > Code: > > SQLTemplate template = ..... > > template.setFetchingDataRows(true); > > ... > > List res = this.dataContext.performQuery(template); > > Subject sub = (Subject)context.objectFromDataRow(Subject.class, > (DataRow)res.get(0), true); > > > > Err: > > java.lang.NullPointerException > > at > org.apache.cayenne.access.ObjectResolver.objectsFromDataRows(ObjectResol > ver.java:117) > > at > org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFromDataRows > (ObjectResolver.java:94) > > at > org.apache.cayenne.access.DataContext.objectsFromDataRows(DataContext.ja > va:597) > > at > org.apache.cayenne.access.DataContext.objectFromDataRow(DataContext.java > :646) > > ........... > > > > What, if anything am I doing incorrectly here? I have tried changing the > refresh, and most of the other API calls with no success? > > Has this changed any in 3.0, as I see a few differences between the API > and the docs? >
