Currently there's no way to get a fast count of number of relationships,
but this has been worked on so that you can get number of relationships per
type/direction without actually looping through them. When it will go into
the product I don't know yet. The best you can do in the meantime is to
keep that counter as a property on each node which you update manually,
maybe even as a transaction event
handlerhttp://api.neo4j.org/current/org/neo4j/graphdb/GraphDatabaseService.html#registerTransactionEventHandler%28org.neo4j.graphdb.event.TransactionEventHandler%29
.
2011/12/2 Krzysztof Raczyński racz...@gmail.com
Hello folks, i've been trying to prune based on number of outgoing
relationships, but so far i am stumped,
since org.neo4j.graphdb.Node interface doesn't expose any way to count
outgoing relationships. Traversal is for
tree visualisation, and i want to avoid creating too much of a
clutter, hence the outgoing relationship limit. My code right now:
t = neo4j.TraversalDescription().\
max_depth(3).relationships('rel_type','out').\
prune('javascript','position.endNode().getProperty(some_property)
= 192')
I would like to prune nodes that have more than 10 outgoing relationships.
godspeed, graphistas
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Mattias Persson, [matt...@neotechnology.com]
Hacker, Neo Technology
www.neotechnology.com
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