Neo4j direction between nodes

Question

Suppose I have A class which HAS A class B. Then in the graph the direction is outgoing from A or incoming to A? My main question is how to figure out direction between nodes based on class relationships in a OOD. Thanks in advance.

Answer 1

You can easily traverse both ways in Neo4j. My usual default here is outgoing, that said... it depends on your model.

As an exercise, think about people and houses. Does a person have a house or a house have occupants Try thinking about relationship names here. Do they OWN the house, LIVE AT the house or what?

Person--{has}-->house
Person--{livesat}-->house
Person--{owns}-->house
House--{has}-->occupant

They're all slightly different relationships. Apply this thinking to your own model and go for what you think's best. I'm not a fan of "by" relationships, e.g house--{ownedby}-->person as they're simply traversing an "own" relationship backwards and are better expressed that way around.