AppEnginge JAVA SetOrdering Funaction is not working

Question

Messages.java

@PersistenceCapable
public class Messages{

@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Long id;

@Persistent
String name;

@Persistent
String Comments;

@Persistent
Date addedDate;

Query is

Query query = pm.newQuery(Messages.class);
query.setOrdering("addedDate desc");
List<Messages> results = (List<Messages>) query.execute();

also added indexing

<datastore-indexes autoGenerate="false">
<datastore-index kind="Messages" ancestor="true">
<property name="addedDate"  direction="desc" />
</datastore-index>

Result is not coming as expected.order by the addedDate.It results random data not ordered by addedDate Please Help?

score 0 · Accepted Answer · answered Mar 20 '14 at 15:34

0

Remove the index definition for "Messages". You don't need to define an index on a single property.

Try without an index definition for Messages. You should get the correct results.

answered Mar 20 '14 at 15:34

Andrei Volgin

40,755
6
49
58

removed the index definition and cleaned the old indexing using vaccuume_indexes but resuting the same :( – user3086127 Mar 21 '14 at 02:16
The code you posted here is correct. If you still see a problem, it must be somewhere else in your code. – Andrei Volgin Mar 21 '14 at 02:37
Yes It was my mistake.. i was stored the result in HashSet thats why the result was coming random – user3086127 Mar 25 '14 at 05:57

AppEnginge JAVA SetOrdering Funaction is not working

1 Answers1