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agori
 Post subject: strange mapping of collection
PostPosted: Sat Jan 29, 2005 2:39 pm 
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Joined: Tue Oct 12, 2004 9:02 am
Posts: 66
Location: Italy
I have a class "Node".
A node is linked to other nodes as in a graph.
Anyway I only need to know the nodes which are in the outgoing edges of a node.
I have a linking table "linker" who have 3 fields:
-id
-node_id
-linked_node_id

so if i want all the nodes linked to the node with id = 1 I have only to do
SELECT linked_node_id FROM linker WHERE node_id = 1

I want to obtain this list from a property collection. But i don't know how to configure the mapping.
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