On Dec 11, 5:26 pm, Benjamin Muschko benjamin.musc...@googlemail.com
wrote:
Hi,
I was trying out the new 1.4 SDK datastore metadata queries. Querying
for kinds works perfectly fine with this query and I get back results:
Query query = new Query(Query.KIND_METADATA_KIND);
PreparedQuery preparedQuery =
DatastoreServiceFactory.getDatastoreService().prepare(query);
ListEntity kinds =
preparedQuery.asList(FetchOptions.Builder.withDefaults());
However, when I try a similar query for properties I don't get back
anything even though I know that there are entities for at least one
kind in the datastore:
Query query = new Query(Query.PROPERTY_METADATA_KIND);
PreparedQuery preparedQuery = datastore.prepare(query);
ListEntity propertyMetaData =
preparedQuery.asList(FetchOptions.Builder.withDefaults());
I am not quite sure what I am doing wrong. According to the
documentation (http://code.google.com/appengine/docs/java/datastore/
metadataqueries.html#Property_Queries) I am running the correct query.
Also, setting a specific ancestor doesn't work. Maybe somebody can
give me a hint here...
This should work. One possibility is that your properties are all
unindexed - __property__ queries cannot find unindexed properties.
--
David Gay
d...@google.com
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