I have a Room class containing a list of Presence classes. Here are
the annotations.
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class Room {
private final static Logger LOG =
Logger.getLogger(Room.class.getName());
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key key;
@Persistent
private Key creatorKey;
@Persistent
private String name;
@Persistent(mappedBy = "room")
@Element(dependent = "true")
private List<Presence> presences;
...
}
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class Presence {
@SuppressWarnings("unused")
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key key;
@Persistent
private Key userKey;
@SuppressWarnings("unused")
@Persistent
private Room room;
@Persistent
private long lastAccessMs = 0;
...
}
I'm getting an error when I remove multiple entries from presences via
removeAll. Here's the stack trace. I see this error only on the live
site, not on a local build.
com.google.appengine.api.datastore.DatastoreNeedIndexException: no
matching index found.. <datastore-index kind="Presence"
ancestor="true" source="manual">
<property name="__key__" direction="desc"/>
</datastore-index>
at
com.google.appengine.api.datastore.DatastoreApiHelper.translateError(DatastoreApiHelper.java:
39)
at
com.google.appengine.api.datastore.DatastoreApiHelper.makeSyncCall(DatastoreApiHelper.java:
60)
at
com.google.appengine.api.datastore.PreparedQueryImpl.runQuery(PreparedQueryImpl.java:
115)
at
com.google.appengine.api.datastore.PreparedQueryImpl.asIterator(PreparedQueryImpl.java:
81)
at com.google.appengine.api.datastore.BasePreparedQuery
$1.iterator(BasePreparedQuery.java:25)
at
org.datanucleus.store.appengine.DatastoreAbstractListStoreSpecialization.getIndicesOf(DatastoreAbstractListStoreSpecialization.java:
124)
at
org.datanucleus.store.mapped.scostore.AbstractListStore.getIndicesOf(AbstractListStore.java:
393)
at
org.datanucleus.store.mapped.scostore.AbstractListStore.removeAll(AbstractListStore.java:
232)
at org.datanucleus.sco.backed.List.removeAll(List.java:957)
at com.honkentuber.chat.Room.updatePresence(Room.java:97)
at
com.honkentuber.chat.ChatDatabase.storeAndFetchMessages(ChatDatabase.java:
212)
at com.honkentuber.chat.ChatServlet.newJspResponse(ChatServlet.java:
36)
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