Nils, Sounds great, I am on parental leave all summer so I can only cheer :)
/peter Sent from my phone. On Jul 18, 2011 5:22 PM, "Niels Hoogeveen" <[email protected]> wrote: > > In fact, this feature request wouldn't have to be more than a setNodeId(long id) and getNodeId() method on RelationshipType. This would eliminate the need to look up additional relationship type information through the Lucene Index. > Niels > >> From: [email protected] >> To: [email protected] >> Date: Mon, 18 Jul 2011 15:10:25 +0200 >> Subject: [Neo4j] Reification of RelationshipType >> >> >> In another thread today, I defended the schemaless nature of Neo4J, however I believe there is one area where Neo4J has some sense of schema, which could use some improvement in my opinion, the RelationshipType. >> Whenever creating a typing layer on top of Neo4J, some duplication of functionality will be introduced with regard to RelationshipTypes. >> There is the RelationshipType in core, which is basically a name, >> and there will be a node in the typing layer, which will represent that same RelationshipType as a node. >> Linking these two RelationshipTypes needs to be done by means of the Lucene index, which is not necessarily the fastest operation. >> Would it be possible to reify the RelationshipType as a node in core, so relationshiptypes can be traversed. Different typing layers can then use that node to add additional information to the relationship (for example stating the transitivity, symmetry, reflexivity of the relationship, or whether the relationship is functional, injective or one-to-one, or the domain and range of the relationship). >> Different typing layers may implement the relationshiptype differently, but having a node to attach this information to would suffice for all possible scenarios. >> The creation of a RelationshipType-node, can even be done lazy, >> so Neo4J users that don't need a RelationshipType-node won't be bothered with additional nodes in the database. >> Niels >> >> >> _______________________________________________ >> Neo4j mailing list >> [email protected] >> https://lists.neo4j.org/mailman/listinfo/user > > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
