The names IS_PARENT and IS_SON doesn't really explain which direction it is, right? A better naming would be IS_PARENT_OF or IS_SON_OF. Then you would immediately see which direction they have. But if you choose to go with the father or son naming is up to you, whatever feels more natural.
2009/11/19 Anders Nawroth <and...@neotechnology.com>: > Hi and welcome Matt! > >> What is the best way to design this type of relationship? What direction is >> best to use? >> > > The one that makes the most sense to you in your code, I think! Or > rather: how would you draw this on a whiteboard when explaining the > application domain to someone?! In my case I'd go with HAS_CHILD > relationships as this direction feels more natural to me. > > There's no need to add relationships twice to cover the directions, as > Neo4j can traverse both incoming and outgoing relationships or simply > ignore their direction (that is use Direction.BOTH or leave the > direction unspecified). > >> I noticed in the matrix example, relationships point from Neo to the other >> characters. > > Even if Neo4j relationships always have a start node and an end node > (and a direction) it's up to the application to decide what semantics > goes with this. In the Matrix example the KNOWS relationship likely > should count as undirected, as someone you know also knows you. The > CODED_BY relationship is different, as the direction of it is really > significant. > >> Is there also a relationship from the reference node to Neo, or >> does Neo point to the reference node? >> > > There are different variations of this example, both with and without a > relationship from the reference node to the Thomas Andersson/Neo node. > This one has such a relationship: > http://wiki.neo4j.org/content/The_Matrix > > For real applications it often a good idea to add a few nodes that are > used as "subreference nodes" - have a look here: > http://wiki.neo4j.org/content/Design_Guide#Organizing_your_Nodespace > > > /anders > > > -- > Anders Nawroth [and...@neotechnology.com] > GTalk, Skype: anders.nawroth > Phone: +46 737 894 163 > http://twitter.com/nawroth > http://blog.nawroth.com/ > > _______________________________________________ > Neo mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user > -- Mattias Persson, [matt...@neotechnology.com] Neo Technology, www.neotechnology.com _______________________________________________ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
