There is also Adriano's Scala Cypher DSL:
https://github.com/adrianoalmeida7/cypher-typesafe-scala
Michael
Am 17.11.2011 um 22:00 schrieb Andres Taylor:
> On Thu, Nov 17, 2011 at 9:55 PM, Peter Neubauer <
> peter.neuba...@neotechnology.com> wrote:
>
>> Actually,
>> it might be an idea to look a
Hi Karthik,
You have to do the normal Neo4j HA setup
(http://docs.neo4j.org/chunked/snapshot/ha.html).
* add the additional dependencies to your project org.neo4j:neo4j-ha:1.5
* running 3 coordinators (either download neo4j-enterprise and use
start-coordinator or start the zookeeper instances p
I've tried to reproduce this directly in Cypher, and through SDN, but I
haven't been able to. I will spend some more time on this tomorrow. If it's
possible for you to create a minimal test that reproduces the problem, it
would very helpful.
Andrés
On Thu, Nov 17, 2011 at 8:45 PM, Tero Paananen w
Deleting a node doesn't remove it from its indexes because there's no hard
link between a node and its indexes so it would be a costly operation. It
merely hides it from IndexHits and puts it up for deletion later
(read-repair). Are you getting the exception in another thread and/or is
that node in
On Thu, Nov 17, 2011 at 9:55 PM, Peter Neubauer <
peter.neuba...@neotechnology.com> wrote:
> Actually,
> it might be an idea to look at this kind of DSL for Cypher, much along
> the (Scala) lines of Rickards Java-DSL,
>
> http://rickardoberg.wordpress.com/2011/11/14/creating-a-dsl-for-cypher-graph
Actually,
it might be an idea to look at this kind of DSL for Cypher, much along
the (Scala) lines of Rickards Java-DSL,
http://rickardoberg.wordpress.com/2011/11/14/creating-a-dsl-for-cypher-graph-queries/
instead of trying to mimic literal Cypher Strings.
WDYT?
Cheers,
/peter neubauer
GTalk:
We have an Spring Data Graph implementation that is currently working great
with the embedded neo4j database. We want to try out the HA setup and my
understanding is you can run HA in embedded mode.
Assuming you have the HA configuration setup, would configuring the
graphDatabaseService bean to u
Great,
thanks a lot George! Will include it in the setup section in the
manual,
http://docs.neo4j.org/chunked/snapshot/server-embedded.html#_getting_the_libraries
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linke
>> @Query(value = "start n = node(1) match (n)-[:KNOWS]->(c) where c.a =~
>> /.*?{foo}.*?/ return c", type = QueryType.Cypher)
>> Page getConnectedNodes(@Param("foo") String foo, Pageable pageable);
>>
>
> The regular expression can either be provided through a parameter, or
> inlined in the query.
On 11/18/2011 02:34 AM, Peter Neubauer wrote:
>
> How about some time during tomorrow CET working hours?
>
Fine, see you then. Thanks in advance for your time.
Eric
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On Thu, Nov 17, 2011 at 6:14 PM, Tero Paananen wrote:
> @Query(value = "start n = node(1) match (n)-[:KNOWS]->(c) where c.a =~
> /.*?{foo}.*?/ return c", type = QueryType.Cypher)
> Page getConnectedNodes(@Param("foo") String foo, Pageable pageable);
>
The regular expression can either be provided
Got it. Thanks!
Rick >> -1
A
On Thu, Nov 17, 2011 at 6:36 PM, Marko Rodriguez wrote:
>> What exactly does iterate() do?
>
> A Gremlin expression yields a Pipeline and
> Pipeline implements Iterator
>
> Thus, a Gremlin expression doesn't return the results of a traversal, only a
> lazy
How about some time during tomorrow CET working hours?
On Nov 17, 2011 2:29 PM, "Eric Liang" wrote:
> On 11/17/2011 08:44 PM, Peter Neubauer wrote:
> > Eric,
> > Maybe we can connect over Skype and get it working? I am somewhat of a
> > fixing things expert :-)
> OK. I can share the screen but ta
> It cannot be only that. By the looks of it some part of your code uses
> Node#hasProperty after Node#delete, which is illegal and that's what's
> causing it.
Yes, that's right. The exception is expected behaviour. But why the
node's still in the index?
I think it's just a timing problem in our
> What exactly does iterate() do?
A Gremlin expression yields a Pipeline and
Pipeline implements Iterator
Thus, a Gremlin expression doesn't return the results of a traversal, only a
lazy iterator for .next()'ing results. For people doing a traversal to yield a
sideEffect (e.g. aggregat
It iterates.
Sorry, couldn't resist. ;-)
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On
Behalf Of Alfredas Chmieliauskas
Sent: Thursday, November 17, 2011 12:31 PM
To: Neo4j user discussions
Subject: Re: [Neo4j] Gremlin plugin and script e
Thanks!
What exactly does iterate() do?
A
On Thu, Nov 17, 2011 at 4:07 PM, Marko Rodriguez wrote:
> Hey Alfredas,
>
> Be sure to iterate your pipeline
>
> x = []; g.v(1).out("from").out("to").aggregate(x).loop(3){it.loops <
> 4}.iterate(); x
>
> * NOTE: You can also do:
> g.v
Another regular expression related issue in Cypher. 1.5 GA.
I'm using repositories extensively in my application. I'm extending the
queries defined by the repository interfaces with my own using the @Query
annotation.
It seems as if using parametrized regular expressions in these queries
isn't wo
This is using 1.5 GA.
I think I found a bug (or unsupported feature) in how regular
expressions used in where clauses work in Cypher queries.
It doesn't look like having multiple regular expression conditions
in a where clause back to back works too well.
Here's an example that works:
start n =
Hey Alfredas,
Be sure to iterate your pipeline
x = []; g.v(1).out("from").out("to").aggregate(x).loop(3){it.loops <
4}.iterate(); x
* NOTE: You can also do:
g.v(1).out("from").out("to").aggregate(x).loop(3){it.loops < 4} >>-1
but the >> convention is no longer with us in
Hey,
It might be a little too soon to bring it up, but early December, we are
releasing Gremlin Scala in Gremlin 1.4 which will allow you to import Gremlin
into your Scala project (e.g. Neo4j-Scala Wrapper) and evaluate Gremlin queries
natively.
https://github.com/tinkerpop/gremlin/tr
Dear all,
This concerns gremlin plugin and the script engine.
Maybe there's an explanation for this behavior:
1) gremlin> x = [];
g.v(1).out("from").out("to").aggregate(x).loop(3){it.loops < 4};
gremlin> x;
==> v[7]
==> v[3]
==> v[5]
2) gremlin> x = [];
g.v(1).out("from").out("to").aggregate(
Thanks for the great reply Michael, the "RESTDataService" is
SpringRestGraphDatabase , sorry, I was away from docs, and was the best
approximation of the real name I had :P
Thanks a lot for clarification. I guess I'm just assuming REST will not be
enough before even trying, it may not be an overh
Sure, no problem.
Here you go: https://gist.github.com/1373211
On 17 Nov 2011, at 12:41, Peter Neubauer [via Neo4j Community Discussions]
wrote:
> Great,
> Thanks for sharing it! Would love to see this in some public place to be
> able to refer to it. Gut it on Github somewhere?
> On Nov 1
If you're using spring you can also look into Spring Data Neo4j
(http://spring.neo4j.org)
(see the docs here:
http://static.springsource.org/spring-data/data-graph/snapshot-site/reference/html/#reference:neo4j-server)
and its use of the SpringRestGraphDatabase and/or the java-rest-binding
(ht
I don't think lucene supports that. You could instead make sure that
everything you index is also indexed in some kind of "all" field, which
would duplicate your index, but make this possible.
Den 17 november 2011 11:00 skrev Anders Lindström :
>
> Thanks Michael for this creative idea.
>
> But i
2011/11/17 Axel Morgner
> We remove nodes from the index with index.remove(node). The index is
> initialized at startup with
>
It cannot be only that. By the looks of it some part of your code uses
Node#hasProperty after Node#delete, which is illegal and that's what's
causing it. Can you provide
After I finally figured out that one of my main problems was with the
version of jersey used (I upgraded to 1.10),
I copied over the static web dependency to the lib folder and it worked as well.
But your approach is much nicer. Will give it a try.
On Thu, Nov 17, 2011 at 1:40 PM, Peter Neubaue
On Thu, Nov 17, 2011 at 1:21 PM, Christopher Schmidt <
fakod...@googlemail.com> wrote:
> Cypher has some
> similarities to SQL as a special query language. And to be honest, I think
> using it programmatically will cause the same symtoms as SQL with respect
> to runtime errors, type safety, abstra
Sure, here are the files, first after the checkout directly and then after I
add the missing entry (maybe you can correct this on the repository?).
http://dl.dropbox.com/u/18693700/git.txt
http://dl.dropbox.com/u/18693700/meta-inf_fixed.txt
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View this message in context:
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Hi there! I've being playing around with neo4j for a few weeks now. I'm
using embedded graph db, and the data lives inside my developer machine.
But now I need to turn things into a more production like stage.
Coming from a traditional SQL world where we have our clusters of DB
running in some ser
On 11/17/2011 08:44 PM, Peter Neubauer wrote:
> Eric,
> Maybe we can connect over Skype and get it working? I am somewhat of a
> fixing things expert :-)
OK. I can share the screen but talk much since my colleagues are still
working. :D
Anyway, is your skype peter.neubauer and what time is conveni
Eric,
Maybe we can connect over Skype and get it working? I am somewhat of a
fixing things expert :-)
On Nov 17, 2011 11:26 AM, "Eric Liang" wrote:
> On 11/17/2011 02:46 PM, Anders Nawroth wrote:
> > Hi!
> >
> >> From the discussion ( http://neo4j.org/forums/#nabble-td3217906 ),
> >> Anders Nawr
Great,
Thanks for sharing it! Would love to see this in some public place to be
able to refer to it. Gut it on Github somewhere?
On Nov 17, 2011 1:35 PM, "g-eorge" wrote:
> I added the following to my .sbt file and everything appears to work fine
> so
> far..
>
> libraryDependencies ++= Seq(
>
Daniel,
Could you send over the full console output of a
mvn clean install -DskipTests
?
On Nov 17, 2011 12:55 PM, "danielb" wrote:
> Hi I have some problems with the new build of Neo4j Spatial. First if I
> checkout and try to build the following error occurs "[ERROR]
>
> spatial\src\main\java
I added the following to my .sbt file and everything appears to work fine so
far..
libraryDependencies ++= Seq(
"org.neo4j.app" % "neo4j-server" % "1.5",
"org.neo4j.app" % "neo4j-server" % "1.5" classifier "static-web"
from
"http://m2.neo4j.org/releases/org/neo4j/app/neo4j-server/1.5/
Peter, I think its not possible because "[" and "]" are reserved for Scalas
type declarations.
The String (fe. "KNOWS") is implicitly converted
into DynamicRelationshipType.withName("KNOWS").
What would be possible to get something like this (which is actually just a
change of method names):
star
> Does this problem occur with automatic node indexing?
>
We're not using auto indexing, so I can't say.
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Hi I have some problems with the new build of Neo4j Spatial. First if I
checkout and try to build the following error occurs "[ERROR]
spatial\src\main\java\org\neo4j\gis\spatial\indexprovider\SpatialIndexProvider.java:[38,0]
error: Internal error: java.io.FileNotFoundException:
META-INF/services/or
Does this problem occur with automatic node indexing?
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Dear Graphistas,
today we would like to ask for your contribution in our efforts to create an
introductional reference card for Neo4j.
We would like to publish it as a 6 page DZone Ref-Card but also include the
content in our distribution / website.
We feel many people are overwhelmed when it
We remove nodes from the index with index.remove(node). The index is
initialized at startup with
Index index = graphDb.index().forNodes("fulltextAllNodes",
MapUtil.stringMap("provider", "lucene", "type", "fulltext"));
Removing the node from the index before executing node.delete() avoids
the e
On 11/17/2011 02:46 PM, Anders Nawroth wrote:
> Hi!
>
>> From the discussion ( http://neo4j.org/forums/#nabble-td3217906 ),
>> Anders Nawroth said neo4j-cypher works with Eclipse Indigo, so I
>> installed a fresh latest version of Eclipse, but still not work.
> It worked when I wrote the instructi
Thanks Michael for this creative idea.
But is it possible to query for _all_ objects in a Lucene index? As I
understand it, I need at least the name of an index key field, e.g. 'title',
right? What I would like to do is basically query for * (without knowing
_anything_ but the index name, i.e.
"Removing from index": is that done by looking at properties and removing
them from the index for every property. If that's the case then this is
expected since the node has been deleted just before.
2011/11/17 Peter Neubauer
> Axel,
> Can you isolate this into a test, and maybe send the message
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