Prent-child model?

[treaves]

I am trying to model a bi-direction one-to-many relationship (a tree). A node can have a parent, and has a children collection. This is straigh-forward in most persistance framewroks. But I can not find the 'correct/best' way to do it with neo4j. I read that when traversing, direction is ignored, so the 'parent' relationship does not need to exist. But in my Java code, something should exist to show this relationship.

I've spent an hour or so searching around, and can't find this simple example. I'd appreciate any pointers.

Thanks.