Thanks a lot for your helpful code Ian! Now I've implemented the long as gae.pk-id. Both entities and the link are stored but I don't know how to adopt what you wrote:
On 7 Jun., 21:54, Ian Marshall <ianmarshall...@gmail.com> wrote: > Beware that in this case, the Long ID values are not the full key, > just a summary: you will need a full chain starting with the entity > group parent and working down through the children to your entity > (unless your entity is the parent of its entity group). I do find > entities by (Long) ID, but need IDs of entity group ancestors to get > this to work. How do I build a key from parent and child if I don't know the parents key? The KeyFactory and KeyFactory.Builder don't provide this way. I guess I missed somehting in my line of thought. Actually I like to do what wilberforce did: I have a (long) id of an entity 1 object and like to get all (long) ids of the linked objects of entity 2. @ wilberforce: Could you post a code snipped of your query (where you query the ManyToManyLink with the key of Entity1 and get a list of keys for Entity2)? Thank you in anticipation! -- 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=en.
