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
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