Easy answer: it depends On your use-cases ... what do you want do do with the graph model.
And you can actually have both, you have have the simple relationship spanning across the intermediate node (of course you should keep them in sync). In general, when the relationship is an important enough concept in your domain, that it has its own name, lifecycle and links to other things then it makes sense to pull it out as a node. Also when you want to traverse across that attribute to find other related nodes that share it (e.g. for recommendation). HTH Michael Am 18.04.2014 um 09:04 schrieb Tom Zeppenfeldt <[email protected]>: > Pros > - you can use the intermediate nodes to link other nodes to, instead of > providing nodeids as values of relationship properties > - it allows you to create a system to "version" networks > > Cons > - longer paths, more complex queries > - managing the rels between the principal nodes is more complex, what is a > rel in "normal" setup, is now a rel-intermediatenode-rel construct > - if you want to make vizualisations, it may be necessary to "skip" the > intermediate nodes, since force-based lay-out algorithms will be disturbed by > the intermediate nodes. > > > On Friday, 18 April 2014 08:47:17 UTC+2, Aseem Kishore wrote: > Example: users following other users. > > Is there any advantage/disadvantage to directly connecting users with > relationships, vs. indirectly connecting them via nodes? > > E.g. > > (:User) -[:FOLLOWS]-> (:User) > > vs. > > (:User) <-[:SOURCE_USER]- (:Follow) -[:TARGET_USER]-> (:User) > > The node obviously lends more flexibility (e.g. others can "like" it, it can > be placed in a linked list, etc.), but I'm wondering: are there any downsides > to it? E.g. if I commonly want to fetch a user's followers, is the extra hop > a significant performance drain? (I can test performance, but I guess I'm > wondering if there are other factors I can't even think of.) > > Thanks! > > Aseem > > > -- > You received this message because you are subscribed to the Google Groups > "Neo4j" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Neo4j" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
