Can you post the JPA version of your entity? Filtered queries should work on JPA objects, but just for a sanity check let's see if there's anything that jumps out at us.
I've just built something similar, and if I pass a Key to: query.setParameter("key", key); This works correctly, though if I pass the String key to it query.setParameter("key", "someLongString"); It returns an empty list. Could this be what is happening? On Thu, Nov 19, 2009 at 9:26 PM, lp <lucio.picc...@gmail.com> wrote: > hi all, > > i have a JDO query that i would like to port to JPA. > > Friend Entity > @PersistenceCapable(identityType=IdentityType.APPLICATION) > public class Friend { > > @PrimaryKey > @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) > private Key key; > > @Persistent > private String lastName; > > @Persistent > public int crud; > > @Persistent > private String firstName; > > @Persistent(defaultFetchGroup = "true") > private Collection<Key> friends; > > > //JDO > javax.jdo.Query query = pm.newQuery(Friend.class); > Key myKey = user2.getKey(); > query.declareParameters("com.google.appengine.api.datastore.Key > myKey"); > query.setFilter("friends == myKey"); > query.setOrdering("crud ASC, lastName ASC, firstName ASC"); > List<Friend> friendList = (List<Friend>) query.execute(myKey); > > > The problem i am having is with the query.setFilter("friends == > myKey" ) portion. > > //JPA > javax.persistence.Query query = em.createQuery("select from > Friend where friends=:key"); > query.setParameter("key", user2.getKey()); > List<Friend> friendList = (List<Friend>) query.getResultList(); > > however the resultlist returns 0. > > any help is appreciated > > -lp > > -- > > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=. > > > -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=.