For the first position (at the start node), there is no relationship leading
up to it, which means that the lastRelationship() method returns null.
This is a special case that has to be dealt with.
Cheers,
Tobias
On Wed, Mar 23, 2011 at 9:05 PM, Justine Mathews justine.math...@megree.com
wrote:
Javier,
unfortunately it is not clear what you're asking for.
Is it the discoverable part of the REST API which describes parameters and
return values?
I think the parameter description is generated from the server plugin method
parameter names, types and annotation values.
This is handled by
Hi,
is it true that the current neo4j-spatial jarfiles are not available on
http://m2.neo4j.org/org/neo4j/neo4j-spatial/ anymore?
I cannot find it at http://m2.neo4j.org/snapshots/org/neo4j/ either.
On https://repo.neo4j.org/ I only find 0.1-SNAPSHOT.
Anton,
we are thinking of adding more property types to Neo4j after 1.3,
among them a structured document one that would be exactly this.
Until then, you can of course either just have properties for each of
the map entries, or escape the whole JSON map and store it as a String
property. Would any
Hi!
Lots of files in the repo got moved yesterday while some work was done
there. I'll try to bring them back ASAP.
/anders
On 03/24/2011 10:18 AM, Axel Morgner wrote:
Hi,
is it true that the current neo4j-spatial jarfiles are not available on
http://m2.neo4j.org/org/neo4j/neo4j-spatial/
Hi!
The neo4j-spatial snapshots are now back.
/anders
On 03/24/2011 10:18 AM, Axel Morgner wrote:
Hi,
is it true that the current neo4j-spatial jarfiles are not available on
http://m2.neo4j.org/org/neo4j/neo4j-spatial/ anymore?
I cannot find it at http://m2.neo4j.org/snapshots/org/neo4j/
Yes, thanks a lot!!
Am 24.03.2011 10:42, schrieb Anders Nawroth:
Hi!
The neo4j-spatial snapshots are now back.
/anders
On 03/24/2011 10:18 AM, Axel Morgner wrote:
Hi,
is it true that the current neo4j-spatial jarfiles are not available on
http://m2.neo4j.org/org/neo4j/neo4j-spatial/
Hi,
I'm new to Neo4J and I'm a little bit confused (maybe totally lost...) about
the use of the Neo4J server against an embedded database in high
availability mode...
I need a database with high availability, replication and high concurrency
management accessed as a remote server.
If I have well
Hi Kiiv,
Both the embedded database *and* the server database can run in HA mode.
We tend to think of the server as simply a wrapper around the database that
provides a RESTful API to augment the local API.
So go right ahead and pick the configuration that's right for you, and you'll
be able
Hi Axel,
We had a brief outtage of the m2.neo4j.org snapshot repository. It should all
be back up again.
Apologies,
Andreas
On Mar 24, 2011, at 10:18 AM, Axel Morgner wrote:
Hi,
is it true that the current neo4j-spatial jarfiles are not available on
Hi, I've been playing with Neo4j Spatial and the OSM data imports to
see how it all fits together. I've been blogging on my experiences
(http://bbboblog.blogspot.com).
It's still early days but think that I have run into an issue. Having
imported the OSM data successfully I've tried to execute
Hi Jim,
thanks for your answer.
So the Neo4J server and REST API are principaly interesting for non
supported langages but with Java you confirm that the embedded database in
high availability mode act like a standalone server.
Nice ;)
Kiiv
2011/3/24 Jim Webber j...@neotechnology.com
Hi
Folks,
I was wondering if there's a way to simulate the notion of a cron job inside
embedded neo4j, I nerd to have a way to periodically update a certain property
of each and every node in my graph by calling into a remote service .
Regards
Sent from my iPhone
Hi Saikat,
The embedded graph database does not have such a facility. You'd have to manage
a timer thread yourself or use perhaps Quartz[1] for sophisticated job
scheduling.
Cheers,
Andreas
[1] http://www.quartz-scheduler.org/
On Mar 24, 2011, at 3:08 PM, Saikat Kanjilal wrote:
Folks,
I
On Thu, Mar 24, 2011 at 04:58, Michael Hunger
michael.hun...@neotechnology.com wrote:
unfortunately it is not clear what you're asking for.
Sorry about that. The only thing I want in the REST component is a way
to identify the data type of the value returned by an extension.
Is it the
Hit there,
there is a nice write-up at
http://onjava.com/pub/a/onjava/2005/09/28/what-is-quartz.html?page=1
on quartz.
I have used Quartz before - it's VERY convenient, and does handle
threads etc nicely. I am not certain what use a wrapper or utility
would provide in itself since Quartz already
Hi Robert,
Interesting work you're doing. I just read your blogs and I think it would
be great to discuss your tests in more detail. Michael Hunger has done some
interesting tests on the scalability of the OSM import, and could probably
give suggestions on configuring the import.
Looking at your
Yes to be clear what I need is some hook in neo4j connected to a utility that
does update of global data using quartz, in my case I would need this to update
a specific property of all nodes.
Date: Thu, 24 Mar 2011 15:56:37 +0100
From: peter.neuba...@neotechnology.com
To:
Thanks for the response Craig. You're right I had mixed up the
latitude and longitude coordinates. I've now got the expected
answers...
However the transposition of the elements of the spatial index's root
node geometry envelope definitely occurs. I just wouldn't have spotted
it if I hadn't mixed
For fun:
This is a visualization of the graph resulting from a simulation
(interacting energy markets).
http://test.eeni.tbm.tudelft.nl/~alfredas/d13n-graph.png
After 10 simulation ticks we have ~170'000 entities (agents, markets,
power plants, bids, substances, technologies, etc) and ~650'000
Hi All,
When I load data via an EmbeddedGraphDatabase - I need to stop the
server, load the nodes and then restart the server. Is there a way to
load the server while it is active?
Are there ways to do intermittent transaction commits? I was thinking
to call transaction.finish and then get a
Hi,
Is this of help?
http://wiki.neo4j.org/content/Transactions#Big_transactions
David
On Thu, Mar 24, 2011 at 12:11 PM, jisenhart jisenh...@yoholla.com wrote:
Hi All,
When I load data via an EmbeddedGraphDatabase - I need to stop the
server, load the nodes and then restart the server.
only one jvm can access a graphdb at a time
you could write a server plugin or extension for loading the data
those share the db with the other server modules
for intermittent commits just use a counter to commit and restart transactions
after xx inserts
Michael
Sent from my iBrick4
Am
What kind of property is that?
Is it the same on all nodes? So perhaps you can abstract that and just put it
on one node and have the others linked to that?
Could you please elaborate on your domain?
Thanks
Michael
Am 24.03.2011 um 18:19 schrieb Saikat Kanjilal:
Yes to be clear what I
Wow!
That is some wicked impressive visualization! Well done! Also, there
will be a GeekOut in Tallin, Estonia, http://twitter.com/#!/GeekOut_ee
Maybe we could meet up there and have some Graph-fun and you show off
this stuff to the geeks?
Cheers,
/peter neubauer
GTalk: neubauer.peter
But Alfredas is in the Netherlands, right, in Delft?
Btw. they used Spring Data Graph successfully for their project, I already got
some great feedback.
Thanks for that
Cheers
Michael
Am 24.03.2011 um 21:06 schrieb Peter Neubauer:
Wow!
That is some wicked impressive visualization! Well
Thanks!
On Thu, 24 Mar 2011 20:29:01 +0100, Michael Hunger
michael.hun...@neotechnology.com wrote:
only one jvm can access a graphdb at a time
you could write a server plugin or extension for loading the data
those share the db with the other server modules
for intermittent commits just
Is there a way to determine the path to the conf directory from within
a plugin?
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Estonia is nice. But unfortunately I'm in Delft, NL most of the time.
It would be great though to meet somewhere in the middle at some
point, maybe Cph?
Alfredas
On Thu, Mar 24, 2011 at 9:20 PM, Michael Hunger
michael.hun...@neotechnology.com wrote:
But Alfredas is in the Netherlands, right, in
Nice to see my visualization code being put to good use.
The most recent version has moved to github, along with the rest of Neo4j,
since this is an unofficial tool it is on my personal github:
https://github.com/thobe/neoviz
Cheers,
Tobias
On Thu, Mar 24, 2011 at 8:09 PM, Alfredas
Hello everyone,
Another milestone has arrived, bringing a new webadmin UI, extended server
extensions and improvements on the Windows side of things. For a thorough
description of the changes present, as always, refer to the official blog post,
available at:
http://blog.neo4j.org/
A new
I will need to double check this. I know there was a dispute early on with
Neo4j Spatial because the JTS library orders bbox params in one way, and
GeoTools does it another way, so you might be seeing the results of that. I
believed we sorted that all out, but perhaps not. I have have just checked
Nice visualization! How long did it take to render this image?
By the way, we are going to hire a student through Google Summer of
Code to use Cytoscape 3 as a visualizer for Neo4j. If any of you are
a student and interested in this type of coding project, please apply:
Easy question (I hope):
For a simple, one key index, is it better (more performant on write and query)
to use the indexing framework or to create your own index using relationships?
Thanks,
Rick
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Oh, and one related question: With the index framework, is there a way to limit
the # of items returned from a query? I could potentially have millions of
values, but am only interested in the top or bottom 100 (based on sort order).
-Original Message-
From:
Hi, Mattias.
This looks like it is almost exactly what I need for one of our use cases, but
I can't find any examples/documentation on its usage. Can you point me to an
example of creating/adding/querying using these index?
Cheers,
Rick
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Neo4j
Answering (part of) my own question, I found top(n) in QueryContext. Anyone
have an example of its proper usage?
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On
Behalf Of Rick Bullotta
Sent: Thursday, March 24, 2011 9:01 PM
To: Neo4j user
Hi,all
I am confused at the index real-time, If I make an index, and add some
nodes in , when I can used the index and find the node ? if it's real-time , It
will cause some CPU and calculate ? It is worth for me to use real-time ? how
can config that
Though I don't see a reason not to support it, but I did not understand the
point of HA in a embedded mode. Would be interested in hearing couple of
examples of what that would be...
Embedded would mean - same VM - so replication and concurrency - do they
really mean much here ?
Also, that
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