Having played around with some ASCII art (quite good fun actually!) it is
starting to feel more natural to re-order the index entries, so that the
key:value part is both consistent with existing syntax and adjacent to the
index reference. I have ended up with:
# ADD ENTRY:
# ensure node bert has
Michael Hunger wrote
No, the alternative there is to provide a server-side extension that
encapsulates your business logic as an endpoint running inside of a tx.
Yes, this is 3rd solution. But this is the worst one because I have to
create custom layer which will work ONLY with my app.
Michael Hunger wrote
Am I missing something?
I hope I do, because in this situation, Neo4j isn't actually interesting
DB
server/solution...but I want it to be.
I would like to know some more detailed reasons for that, so far we
haven't received this kind of response.
Do You know ANY
Good point. Yes, that certainly is an alternative.
But unfortunately in practice I hardly can imagine .NET, Nodejs, MRI Ruby
(non Java basically) guys to start duplicating the logic for the plugin.
Not even taking into account additional complexity, including unit testing.
Similar thing ships
That's why we've enable the
- ruby-extensions for the server.
- and want to provide the same functionality for other dynamic languages
it is not about duplicating functionality but about moving persistence related
code closer to the db.
Michael
Am 02.12.2011 um 09:43 schrieb Dmytrii Nagirniak:
Everyone,
the next Neo4j Öresund meetup is coming up next Tuesday. I think we
might be able to show off some nice Heroku-Sinatra-GoogleCalc
integration, too, along with some NOSQL war stories and beer, so be
there or be [] !
http://www.meetup.com/Neo4j-Oresund/events/42155032/
Cheers,
/peter
That's why we've enable the
- ruby-extensions for the server.
Haven't seen anything about it. Could you please give some more info on that
(links maybe)?
it is not about duplicating functionality but about moving persistence
related code closer to the db.
It is a long topic on itself:
Anyway, You are talking now about things that doesn't exist and I have to
implement them on my own.
I can't imagine RDBMS server that doesn't give me JDBC driver in the box.
Unfortunately Neo4j is like this. There is no native transaction-full
support so Neo4j can work as standalone server with
Radoslaw,
if you need transactions, embedded and multiple machines, you can
always use HA to let the DB replicate between your servers.
More to the point, we have shun away from a low level API binary
protocol because of serialization overhead reasons when you do for
instance traversals
Be there or be an empty array? I may start saying that just to confuse
people :-)
On 2 Dec 2011 09:30, Peter Neubauer peter.neuba...@neotechnology.com
wrote:
Everyone,
the next Neo4j Öresund meetup is coming up next Tuesday. I think we
might be able to show off some nice
My ASCII art skills suck. I mean square :)
Cheers,
/peter neubauer
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brew install neo4j neo4j start
heroku addons:add
Great.
Let us know if that is working for you.
Cheers,
/peter neubauer
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brew install neo4j neo4j start
heroku addons:add
Johnny,
at which URI si the WADL hosted? Would like to look at the code, or
you could dig into the code yourself if you don't want to wait.
Cheers,
/peter neubauer
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Not sure,
Craig, do you have the code somewhere?
/peter
On Tue, Nov 22, 2011 at 4:17 PM, grimace macegh...@gmail.com wrote:
thanks for the response(s)! The hardware I'm testing on is not the best and
only 4G of ram so I'm limited, but this seems the best opportunity for me to
learn
The WADL is generated by Jersey which uses the metadata that it generates from
the annotated REST-Endpoints.
So it is always up to date: http://localhost:7474/db/data/application.wadl
The Neo4j REST API is designed with discoverability in mind, so that you can
start with a GET / and from there
How about extensions and plugins? Are these discovered by Jetty also?
Cheers,
/peter neubauer
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brew install neo4j neo4j
Hello,
Do You know ANY (mature) RDBMS which is: provides many connection at the
same time, transaction-less and is still popular? I don't know any (even
SQLite has transactions). And now, somebody (not meaning You) want to
convince me that transactions are not needed. At least there strange
It is a long topic on itself: Where the business logic belongs to - the
server or the client.
But the point is that far the most common use-case is to write the business
logic on the client, not on the server.
The business logic on the server has already failed multiple times in the
...though there are perfectly good reasons to include business logic on the
server as well (e.g. stored procedures, which Neo4J can support in its own way
via server-side extensions).
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On
Behalf
At the risk of re-iterating this:
Neo4j in embedded mode supports as many connections as the application where
you embed it.
Jim
On 2 Dec 2011, at 20:38, zolv wrote:
Anyway, You are talking now about things that doesn't exist and I have to
implement them on my own.
I can't imagine RDBMS
Sure the limitations apply, but as only the target database would be corrupted
and none of the ones
being used for the import that should be ok.
That is actually like a nice lab-day project.
I'll add it to the list.
Michael
Am 29.11.2011 um 15:18 schrieb Craig Taverner:
There are two
On 02/12/2011, at 10:36 PM, Jim Webber wrote:
I don't believe that we are talking about business logic on the server -
we're talking about data access logic (queries). Business logic binds to that
data over the network - that the data is sourced through a plugin is an
implementation
...or you can re-think the definition of client. As you know, it is very
common in an SOA model to have actors functioning as both clients and servers.
For example, to the client making a reservation, the server might be the
airline's reservation site. That site might have server-side logic
I may be missing something, but it can't see exactly how to link up your code
with the server.
Should the extension be packaged as a gem and published publicly?
That Wiki entry is a little bit poorly written IMO. Sorry for saying that :-(
On 02/12/2011, at 8:42 PM, Michael Hunger wrote:
What should be improved.
You can also print the page as pdf and annotate what should be better /
different.
Yes packaged as gem and published to the server with a Gemfile.
Thanks a lot
Michael
Am 02.12.2011 um 13:36 schrieb Dmytrii Nagirniak:
I may be missing something, but it can't see
On 2011-11-18 17:12, Jacob Hansson wrote:
Hey all,
Like we've mentioned before, we have lab-day fridays at Neo4j, and
today I hacked some stuff together that landed directly in trunk
for the embedded python bindings.
As of 1 minute ago, the following operations are now possible with
the
On 02/12/2011, at 11:28 PM, Rick Bullotta wrote:
...or you can re-think the definition of client. As you know, it is very
common in an SOA model to have actors functioning as both clients and
servers. For example, to the client making a reservation, the server
might be the airline's
Hello folks, i've been trying to prune based on number of outgoing
relationships, but so far i am stumped,
since org.neo4j.graphdb.Node interface doesn't expose any way to count
outgoing relationships. Traversal is for
tree visualisation, and i want to avoid creating too much of a
clutter, hence
dnagir wrote
On 02/12/2011, at 11:28 PM, Rick Bullotta wrote:
Doesn't matter how you play the words, you need transactions somewhere.
And with REST it is only available as a database plugin.
For most people it is just not worth the effort (especially who's not
coming from Java
FWIW, at present Neo4J has among the most comprehensive ACID support of the
major NoSQL databases. The fact that you might have to write a bit of code or
script to run on the server shouldn't necessarily be viewed as a negative - the
fact that you *can* do this at all is a big plus! Most NoSQL
Please help answering him,
thanks a lot.
http://stackoverflow.com/questions/8356626/orm-with-graph-databases-like-neo4j-in-python
i wonder wether there is a solution (or a need for) an ORM with Graph-Database
(f.e. Neo4j). I'm tracking relationships (A is related to B which is related to
A
Hi,
We are trying to setup neo4j in high-availability mode with 3 nodes in the
cluster.
When we restart any of the neo4j servers, it fails. We get following
exception:
== neo4j-zookeeper.log ==
ERROR main-EventThread org.apache.zookeeper.ClientCnxn - Error while calling
watcher
On 03/12/2011, at 12:50 AM, Rick Bullotta wrote:
I also agree with you that it would be nice to have transaction support over
a remote API, but that's not a trivial thing to accomplish in a web scenario
when there is not any thread affinity or even necessarily server affinity
between
Quick question:
Just saw this commit from Jake:
http://github.com/neo4j/community/commit/f011c51fcbd5f12236fc633f57dcec9fb8cade83
Will the old Cypher plugin endpoint be going away, or will it remain for
back-compat? Which release will have the new endpoint?
This will be helpful info for library
Put my thoughts in :)
--
Matt Luongo
Co-Founder, Scholr.ly
On Fri, Dec 2, 2011 at 8:56 AM, Michael Hunger
michael.hun...@neotechnology.com wrote:
Please help answering him,
thanks a lot.
http://stackoverflow.com/questions/8356626/orm-with-graph-databases-like-neo4j-in-python
i wonder
On Fri, Dec 2, 2011 at 3:45 PM, Dmytrii Nagirniak dna...@gmail.com wrote:
On 03/12/2011, at 12:50 AM, Rick Bullotta wrote:
I also agree with you that it would be nice to have transaction support
over a remote API, but that's not a trivial thing to accomplish in a web
scenario when there is
On Fri, Dec 2, 2011 at 4:53 PM, Jacob Hansson
jacob.hans...@neotechnology.com wrote:
On Fri, Dec 2, 2011 at 3:45 PM, Dmytrii Nagirniak dna...@gmail.comwrote:
On 03/12/2011, at 12:50 AM, Rick Bullotta wrote:
I also agree with you that it would be nice to have transaction support
over a
On 03/12/2011, at 2:53 AM, Jacob Hansson wrote:
This is similar to the approach we're looking at, except interaction
currently looks like:
POST /tx
200: 1
POST /tx/1/node {name:Steven}
201
POST /tx/1/batch [blah blah]
200
PUT /tx/1/state COMMITTED
Yeah. Right. We do need the Trn
Hi all,
todays lab project: http://vimeo.com/33032604
Thought you might enjoy it.
Cheers,
/peter neubauer
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brew install
Hi,
Scenario 1:
I would like to get all Nodes that do not have a relationship to another
node. What is the best way to do this Gremlin?
Root = NodeA = NodeB
Root = NodeC
Output should be NodeC
I don't understand the problem.
Scenario 2:
Root = User - Centre
I would like
On Fri, Dec 2, 2011 at 5:12 PM, Dmytrii Nagirniak dna...@gmail.com wrote:
On 03/12/2011, at 2:53 AM, Jacob Hansson wrote:
This is similar to the approach we're looking at, except interaction
currently looks like:
POST /tx
200: 1
POST /tx/1/node {name:Steven}
201
POST
Nice! Show me how to access those services and I'll build you a killer UI for
it using ThingWorx - in 10 minutes. ;-)
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On
Behalf Of Peter Neubauer
Sent: Friday, December 02, 2011 11:51 AM
To:
It's all in there!
/peter
Sent from my phone, please excuse typos and autocorrection.
On Dec 2, 2011 6:37 PM, Rick Bullotta rick.bullo...@thingworx.com wrote:
Nice! Show me how to access those services and I'll build you a killer UI
for it using ThingWorx - in 10 minutes. ;-)
-Original
On Fri, Dec 2, 2011 at 3:55 PM, jadell josh.ad...@gmail.com wrote:
Quick question:
Just saw this commit from Jake:
http://github.com/neo4j/community/commit/f011c51fcbd5f12236fc633f57dcec9fb8cade83
Will the old Cypher plugin endpoint be going away, or will it remain for
back-compat? Which
No worries :-) I'm on github all day and just happened to see it on my feed.
Good to know that the plugin is staying around for a little while. I'll
probably make the switch to the new endpoint for the next milestone, so that
it can start seeing some use. This will be a good test of libraries
I'm having some trouble understanding relationship indexes.
I plan to have nodes with many (hundreds, sometimes thousands) of
relationships to other nodes.
Give node N, I want to be able to quickly locate one of those relationships
given a key. I want to consider only the outgoing relationships
Frank,
Either you could put just some of the rels into the index, or maybe have an
additional property in the index for the direction?
/peter
Sent from my phone, please excuse typos and autocorrection.
On Dec 2, 2011 8:28 PM, Frank fr...@studyblue.com wrote:
I'm having some trouble
Thanks for the reply.
I *think* that what I need is to do is this:
Relationship relationship = relationshipIndex.get(signature, signature,
lastNode, null).getSingle();
If I understand the documentation correctly, this should return only the
relationships attached to the node lastNode that
Doesn't matter how you play the words, you need transactions somewhere. And
with REST it is only available as a database plugin.
For most people it is just not worth the effort (especially who's not coming
from Java background) and they will turn around.
If you use the REST API as-is, you
And with REST it is only available as a database plugin.
And so what if it were? Writing a server plugin isn't hard - I knocked one
up in an evening. It's just like writing a stored procedure, only with a
different language.
Not sure why so many seem to be clinging onto their RDBMS-coloured
Hi Guys,
If I do a query with out.as(xyz)...out.unique()..out.tablecap I find that
the table projections for the closure do not work and I lose all AS references.
So to get closure support I do this
Out.unique._().out..table
The above sorts out the closure error, but then I lose my
Marko,
Thank you very much, I really appreciate it, I will start going through your
response here. I have also added the copy/split aggregate functionality into
our Gremlin Client. I was not aware of the if then else as well, will extend
our client to support this.
Apologise, will explain
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