Michael -
What if each Gremlin script was scoped inside a Groovy function?
Example: https://gist.github.com/1454298
Would that help keep things clean?
- James
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Michael -
If I understand you correctly, then this modified Gremlin script and request
format should solve "problem 2":
Gremlin Script:
https://gist.github.com/1453964
Script Engine REST Request that uses "params":
https://gist.github.com/1453966
- James
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Michael Hunger wrote
>
> The gremlin plugin (as does the cypher plugin) take an map (a json map) as
> "params", each of which which you then can refer to everywhere in the
> gremlin script (key == variable name, value == value). So no need for
> JSONSlurper.
>
Ahh, that's different than Rexster
Michael Hunger wrote
>
> I understood you were just templating the params in there (string
> replacement) which would result in different groovy strings for every set
> of different parameters. Is this correct?
>
The string replacement is done on the client side. When the script is
presented to
Michael Hunger wrote
>
> you should use native gremlin params where they can be used. otherwise
> you'll blow the scriptengine in the plugin and loose lots of performance
>
Hi Michael -
What do you mean exactly? After the JSON param converts to a map, everything
is a native Groovy param.
- Ja
On Thursday, December 8, 2011 2:48:59 AM UTC-6, Dmytrii Nagirniak wrote:
Unfortunately I couldn't see a lot of value in the REST API either.
The core operations that are taken for granted with native bindings
(traversals using poor Ruby constructs) would require to execute HTTP
request (that's wha
es. I wrote it for Rexster
(https://github.com/tinkerpop/rexster/wiki/), which is another Neo4j REST
server, but the principles are the same.
You can view the source code here:
https://github.com/espeed/bulbs/tree/master/bulbs
Here are the module layers from lowest to highest:
rest.
Brendan cheng-2 wrote:
>
> What design pattern do you recommend for user authentication and
> authorization in neo4j graph? I'm searching a simple and flexible way to
> restrict the access to certain part of graph which is dynamically depends
> on the user and role...etc.How to avoid excessive tr
Hi Yaniv -
Something to keep in mind...
It's now easy to use an external full-text index such as Solr,
ElasticSearch, or IndexTank
(http://indextank.com/) for full-text search and then use Neo4j for
rankings.
For example, you could do the full-text query using Solr and have it
return a list of e
I added a ticket for this here...
https://github.com/neo4j/community/issues/18
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Hi Xavier -
If you would, provide a more detailed description of what the query is
trying to do.
You might look at the Gremlin aggregate, scatter, and gather methods, and I
thought there was a collect() method, but I don't see it in the docs --
Marko, isn't/wasn't that method?).
Here are some do
Xavier Shay wrote:
>
> I have just upgraded to neo4j 1.5 (brew install neo4j --HEAD) and am
> getting
> the following exception whenever I try to use a pipe:
>> curl -H Accept:application/json -X POST -d
>> '{"script":"g.v(1)._().both;"}'
>
Hi Xavier -
Gremlin and Pipes has been undergoing a m
Hi Guys -
I have been working on loading WordNet (http://wordnet.princeton.edu/) into
Neo4j, and have been using it as an opportunity to tune write performance on
Linux for a Web application I am developing.
My initial idea was to load WordNet RDF
(http://semanticweb.cs.vu.nl/lod/wn30/) through
Bryce Ewing wrote:
>
> You can get this working by replacing the parent pom reference in the
> pom.xml file with:
>
> org.neo4j.build
> parent-central
> 25
>
> Instead of the current:
>
> org.neo4j
> parent-pom
> 6
>
>
> It still wont work quite as is though.
Hi Guys -
I'm trying to compile and run the "write test"
(https://svn.neo4j.org/laboratory/users/johan/write-test) from
http://wiki.neo4j.org/content/Linux_Performance_Guide, and I'm getting this
error:
https://gist.github.com/1205327
Is there a newer version of this?
Thanks.
- James
--
Vi
Marko Rodriguez-2 wrote:
>
>>
>>> "For all nodes in a particular index, how many other nodes are they
>>> connected to at depth X?"
>
> Here is how I would do it -- groupCount is not needed.
>
> g.idx(index_name)[[key:value]].both.loop(1){it.loops < depth}.count()
>
>
Thanks Marko. A
Xavier Shay wrote:
>
> "For all nodes in a particular index, how many other nodes are they
> connected to at depth X?"
>
Marko will be able to improve upon this, but try something like this (this
is untested)...
m = [:]
depth = 10
index_name = "vertices"
index_key = "name"
index_nodes = g.idx(
Peter Neubauer wrote:
>
> Keeping an index and check it for an existing value us most
> straightforward.
> We are thinking of supporting uniqueness as a first class operation in for
> instance the auto index configuration.
>
Hi Peter -
It looks like you recently added support for unique indice
Hi Guys -
This is a question from the Gremlin Users group
(https://groups.google.com/d/topic/gremlin-users/cbqydbD3DgQ/discussion)...
James Thornton wrote:
>
>
> What are the recommended methods for restructuring graphs in production?
>
> For example, say you store raw input from users as nod
Peter Neubauer wrote:
>
> I would try the blueprints rdf importer. look at my github home
> (peterneubauer) for a project to import rdf from dbpedia which should
> work for any rdf.
>
Thanks Peter!
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Has anyone here loaded WordNet 3.0 (http://wordnet.princeton.edu/) into Neo4j
or have pointers for doing so?
WordNet 2.0 is in RDF form (http://www.w3.org/2006/03/wn/wn20/) as well as
3.0 (http://semanticweb.cs.vu.nl/lod/wn30/).
What's the best way to load/convert RDF data into Neo4j?
Thanks!
-
to write custom,
user-defined Gremlin steps in Jython.
The library is called mogwai, and it's on Github
(https://github.com/espeed/mogwai).
You should be able to adapt it for any JVM language.
Here's the example code:
Jython module:
https://github.com/espeed/mogwai/blob/master/mo
Michael Hunger wrote:
>
> Probably we have to add this unique property behavior to the auto-indexing
> framework.
>
> Right now we have no means to mark properties as unique.
>
> So whenever you take a different node and set one of its "unique"
> properties to a value already contained in an un
Michael Hunger wrote:
>
> What one could do at a lower level is to create operations like
> db.obtainUniqueNode(Map properties,String...idProperties);
> node.obtainUniqueRelationship(dir, type, props, String...idProperties);
> node.obtainUniqueRelationship(dir, type, targetNode, props,
> String..
Peter Neubauer wrote:
>
> Would a simple check in a new REST endpoint to the job or do you think
> this
> should be further down in the index configuration supporting unique
> properties and throwing an exception or silently update a property if a
> second insertion call comes?
>
Hi Peter -
Do
Hi -
The issue of unique indices came up several times earlier this summer:
http://neo4j.org/forums/#nabble-td3047393
http://neo4j.org/forums/#nabble-td3148364
http://lists.neo4j.org/pipermail/user/2011-June/009809.html
And Mattias created a support ticket:
http://help.neo4j.org/discussions/que
You can use Gremlin to page results.
For example, in Bulbs you would do something like this:
>>> from bulbs.graph import Graph
>>> g = Graph('http://localhost:8182/neo4jenron')
>>> vertices = g.gremlin.query('g.V[0..9]')
- James
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The Gremlin Wiki (https://github.com/tinkerpop/gremlin/wiki) is where you can
find the Gremlin documentation.
Specifically look at the "Gremlin Methods"
(https://github.com/tinkerpop/gremlin/wiki/Gremlin-Methods) and "Gremlin
Steps" (https://github.com/tinkerpop/gremlin/wiki/Gremlin-Steps) cheat
Hi Javier -
Thanks! Yeah, Bulbflow (Bulbs) is what I was talking in when we were
commenting in Hacker News a few weeks ago
(http://news.ycombinator.com/item?id=2684816). I have used your API for the
Neo4j REST server, but I didn't know you were working on one for Rexster too
-- we should exchange
Hey guys -
I just released Bulbflow, a new Python framework for graph databases.
It supports Neo4j and Gremlin through Rexster, and it's online at
http://bulbflow.com .
Enjoy!
- James
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It depends on the traversal you are running.
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I found the mentions of a patch from about a year ago...
http://lists.neo4j.org/pipermail/user/2010-June/003964.html
Has something like this with a configuration param made it into the main
branch?
Thanks.
- James
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How do you configure neo4j not to reuse IDs?
Thanks.
- James
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Thanks Marko!
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