Given that Neo4j has a pretty powerful indexing system with Lucene, why
can't users create their own reference node(s) and index them in their
application?
Like (in pseudo):
Graph g = new Graph()
Node n = g.newNode()
g.putIndex(n,"reference")
//later...
Node refNode = g.getIndex("reference")
I've used Neo4j a lot less than any of you so maybe I don't appreciate
something here, but to me this "reference node" concept does seem like an
artifact that provides little added value, and was a source of frustration
during my thesis.
Just my 2 cents.
Cheers,
Alex
On Wed, Dec 15, 2010 at 5:31 PM, Rick Bullotta <
rick.bullo...@burningskysoftware.com> wrote:
> Thought about that too, and while it's always node zero today, but who
> knows
> what happens in some future rev with sharding, etc...I'd prefer it to be
> opaque to the "how".
>
> -----Original Message-----
> From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org]
> On
> Behalf Of Marko Rodriguez
> Sent: Wednesday, December 15, 2010 11:26 AM
> To: Neo4j user discussions
> Subject: [SPAM] Re: [Neo4j] [SPAM] Re: [SPAM] Re: Reference node pains.
>
> Hi,
>
> > One reason: how to you obtain that reference node later? Seems to me
> you'd
> > need to write some code to save the node id, index it, etc...
>
> If the reference node (=the first node created) is always Vertex Id 0 as
> Johan stated in a previous email as being the case, then you simply do:
>
> Graph.getNodeById(0);
>
> You can, of course, create your own method:
>
> public Node getReferenceNode() {
> return graph.getNodeById(0);
> }
>
> > I don't understand why, for those that don't want a reference node,
> simply
> > don't call "getReferenceNode()" (assuming the lazy creation logic is
> added).
> > ;-)
>
> ...assuming "lazy creation logic." (which is smart).
>
> Another argument could be the inverse of my previous email:
>
> // I like the concept of a reference node
> Graph graph = new Neo4j();
>
> And for those that don't:
>
> // I don't like the concept of a reference node
> Graph graph = new Neo4j();
> graph.removeNode(graph.getReferenceNode() || graph.getNodeById(0))
>
> See ya,
> Marko.
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