Lift offers several persistence mechanisms out of the box (Mapper, Record,
JPA and CouchDB currently), but these are just options. You are free to
handle your model in any way you want. There is no single forced mapping API
you have to code to.
Mapper itself is an ORM, it uses SQL under the hood,
No, nodes that have been created keep their ids for ever.
/Tobias
On Mon, Mar 1, 2010 at 10:26 PM, Pierre Ducrot wrote:
> Thanks for you help.
> Since the original reference node (0) is the first node, would deleting it
> affect node indices, hence 1 would become 0?
> Cheers,
> Pierre
>
> Le 1 m
Hi Everyone,
I am running into some null pointer exceptions when I try to feed
things into some of the graph algos. The test cases can be found in
the link below. It is all maven based and the pre-built graph is
included. Queries19 (Floyd-Warshall), 20 (Eigenvector Centrality with
the "Arnoldi ite
Thanks, I would probably also go with option 3, though it might take a
couple of weeks to get oriented. Hopefully, you guys dont mind if I bug
you the usergroup from time to time with questions
--
Message: 3
Date: Mon, 1 Mar 2010 15:00:28 +0100
From: Tobias Ivarsson
Hi, all.
We're having a tough time troubleshooting a few bugs, and would really like
to be able to view/browse the graph structure. What is the recommended
tooling for this at present? If it matters, we're on a Windows platform.
Thanks,
Rick
___
Thanks for you help.
Since the original reference node (0) is the first node, would deleting it
affect node indices, hence 1 would become 0?
Cheers,
Pierre
Le 1 mars 2010 à 20:01, Peter Neubauer a écrit :
>
> Pierre,
> you can always delete the reference node after creating the DB, then
> creat
Pierre,
you can always delete the reference node after creating the DB, then
creating a node and setting it as the new reference node. Not setting
it again and asking getReferenceNode() will give you a
NotFoundException, which might be inconvenient ...
Cheers,
/peter neubauer
COO and Sales, Neo
Hi Peter,
Actually not, I'm using eclipse directly, creating the database from documents.
Pierre
Le 1 mars 2010 à 18:25, Peter Neubauer a écrit :
>
> Pierre,
> are you using Neo4j via Gremlin? In that case, you probably could
> simply get the auto-created reference node by
>
>
> \,,,
Pierre,
are you using Neo4j via Gremlin? In that case, you probably could
simply get the auto-created reference node by
\,,,/
(o o)
-oOOo-(_)-oOOo-
gremlin> $_g := neo4j:open('tmp')
==>neograph[db:tmp, vertices:1, edges:0]
gremlin> $_ := g:id('0')
==>v[0]
gremlin>
Chee
Hi,
It seems as if EmbeddedGraphDatabase("var/db") by default create a node with ID
= 0 if the database doesn't exist.
Is it possible to create an empty database so that node ID = 0 would the first
node created using g.createNode()
Kind regards,
Pierre
_
I attached log and java I am using,
regards
> Hi,
>
> Can you reproduce this in a test case and send me the code?
>
> If not I would need the active logical log that rotation fails at
> (name of file is either called nioneo_logical.log.1 or
> nioneo_logical.log.2).
>
> Regards,
> -Johan
>
> On Fri
Hi Craig,
while the Neo4j Scala project is not specifically tailored to Lift you
can use it just as easily in a Lift project as you can use "regular"
Neo4j in a Java EE project. Just instantiate the GraphDatabaseService in
the bootstrap code, encapsule your Domain logic etc.
Unfortunately my S
Hi Chike!
All we have done in the core development team is to recognize that "yes,
.Net support would be nice". We don't have the resources to take on
this endeavor at the moment.
There are basically three approaches one could take to provide .Net bindings
for Neo4j:
1. Go through a network inter
Actually, we do have the case (due to an indexing/tagging model that can span
many diverse "types") where we do not have knowledge within the domain model of
the specific "type" of entity represented by a node at one end of a
relationship, thus the reason for marking them with a "type" property.
Hi,
> Is that right? Will I have to manually check for these other relationships
> or there is another solution?
You are right.
I added some information regarding this on the wiki:
http://wiki.neo4j.org/content/Traversal#Extracting_a_subgraph
/anders
___
Hi,
Can you reproduce this in a test case and send me the code?
If not I would need the active logical log that rotation fails at
(name of file is either called nioneo_logical.log.1 or
nioneo_logical.log.2).
Regards,
-Johan
On Fri, Feb 26, 2010 at 5:27 PM, Lyudmila L. Balakireva wrote:
> I am
2010/2/26 :
> Hi, Mattias.
>
>
>
> We had a similar requirement (to track the "type" of a node), and while
> we were able to achieve this with relationships in very constrained
> scenarios, we could not do so in a more general sense. Let me explain
> and maybe you can suggest some ideas
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