,
> Marko.
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ader$JiraExtractor$Item.updateGraph(JiraLoader.java:240)
>
> Thanks,
> Paul Jackson
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> Use
, it's to avoid having to pass around both the batch inserter and the
> index.
> A lot of other APIs provide access to underlying data structures.
>
> Thanks,
> Tim
>
>
>
> ----- Original Message
> From: Mattias Persson
> To: Neo4j user discussions
>
sition.currentNode().hasProperty("category");
> >>if(returnable) {
> >>if(result.get(currentNode) == null) {
> >>result.put(currentNode, 1);
> >> } else {
> >>
of a problem with 1 million relationships, but anyway,
> I'm just curious ;-) )
> ---
> balazs
>
> On 7/8/10 3:21 PM, Mattias Persson wrote:
> > Yeah, that API isn't stable yet, but I think that it will end up similar
> to
> > that... and hopefully merged in
;>>>> title:"The Right Way" AND text:go
> >>>>>
> >>>>> This would find documents with a title field matching "The Right Way"
> >>>>> and a text field matching "go".
> >>>>>
> >>>>> Is it possible to do this in neo4j and the
> LuceneFulltextIndexService?
> >>>>>
> >>>>> As far as I can seee, the answer is no. If it is the case, how
> difficult
> >>>>> would it be to add such multi field query to the
> LuceneFulltextIndexService?
> >>>>>
> >>>>> Thanks for any help, or at least a confirmation that such multi field
> >>>>> Lucene query is possible or not witn neo4j 1.0.
> >>>>>
> >>>>> Regards,
> >>>>> ---
> >>>>> balazs
> >>>>> ___
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> >>>>> https://lists.neo4j.org/mailman/listinfo/user
> >>>>>
> >>>>
> >>>>
> >>>>
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e to retrieve the underlying inserter
> associated with the LuceneIndexBatchInserterImpl please?
>
> Thanks,
> Tim
>
>
>
>
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2010/7/7 Mattias Persson
> Somewhere in 1.1-SNAPSHOT the neo4j-commons component have been merged into
> kernel (org.neo4j.commons package). Since then numerous people have had
> problems with NoSuchMethodErrors and the reason for that is that they have
> had the latest neo4j-ke
. Iterable stuff)
org.neo4j.commons.collection.{MapUtil}
org.neo4j.commons.{Pair, Predicate, Service}
Here are some elaborate examples :)
* org.neo4j.useful
* org.neo4j.misc
* org.neo4j.generic
* org.neo4j.shared
It'd be great to hear your oppinion on this.
--
Mattias
https://lists.neo4j.org/mailman/listinfo/user
> >
>
>
>
> --
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> Independent Software Developer
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> t...@okidokiteam.com
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t Neo4j team and community!
Cheers!
> Cheers,
> Jörg
>
>
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A DI VACANZE ?
> * A Riccione i Riviera Park Hotels sono gli alberghi specializzati per le
> vacanze nei parchi divertimento.Vieni nei Riviera Park Hotels! Ti aspettano
> sconti per tutti i parchi della Romagna! Prenota subito on-line la tua
> vacanza!
> Clicca qui: http://adv.emai
heir logical logs or other stuff. Just
a thought... would that be useful?
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2010/7/1 Mohit Vazirani
>
>
>
>
> - Original Message
> From: Mattias Persson
> To: Neo4j user discussions
> Sent: Thu, July 1, 2010 6:53:48 AM
> Subject: Re: [Neo4j] neo4j REST server standalone
>
> Hi, I'm guessing you would like to specify a
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>nodes = index.getNodes( "name", "andy AND larry" ); // -->
>System.out.println("6: nodes size " + nodes.size());
> nodes = index.getNodes( "name", "andy OR larry" ); // --
ndex for the value you are searching for has changed.
>
> How is that implemented in neo4j? Do you open a new reader whenever
> you do a search on a dirty index?
>
> -atle
>
>
>
>
>
> On Tue, Jun 29, 2010 at 9:22 AM, Mattias Persson
> wrote:
> > I think
j db?
>
> Oh - and the project (which is bare-bones maven stuff right now) is
> available at http://github.com/neo4j/webadmin
>
> Cheers!
> --
> Jacob Hansson
> Phone: +46 (0) 763503395
> Twitter: @jakewins
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; 8; i++) {
>array[7 - i] = (byte) (value >>> (i * 8));
>}
>return array;
>}
>
>private static long fastToLong( byte[] array ) throws IOException {
>long value = 0;
>for (int
00 nodes, but the problem is
>> > still occurring.
>> > Is there a way to iterate all nodes lazily ?
>> >
>> > I'm thinking about a for cycle with long used to ask nodes to batch
>> > inserter, but it doesn't sounds like a good idea.
>&
as a
b-tree or some other ??-tree.
>
> atle
>
>
>
>
> On Wed, Jun 23, 2010 at 11:04 AM, Mattias Persson
> wrote:
> > I think the lucene test is flawed since it never returns any results in
> > lookup method. That's why it's so fast :)
> >
> >
gt;>
>
>
>
>> Details on my server config:
>>
>> 1. Java version:
>> javac version: javac 1.6.0_18
>> java version: (default) "1.4.2_17"
>> However, while executing the program, I use the java executable 1.6.0_18.
>>
>>
>>
tra algorithm in the Graph - Algo package?
> I did not find anything pointing in that direction in the javadocs.
>
> Thanks,
> Bruno Santos
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around these as far as I know, so we would
> lose
> our ability to monitor.
>
> Any suggestions would be great!
>
> Thanks,
> Alex
>
>
> On Wed, Jun 23, 2010 at 3:52 PM, Mattias Persson
> wrote:
>
> > Also, the latest graph-algo is 0.6-SNAPSHOT... s
; as a single method interface, which is useful for when you want to
> >> implement
> >> your own expansion logic.
> >>
> >> This API is added to trunk so that we can get feedback from everyone who
> >> use
> >> the snapshot builds of Neo4j, if the response to this API isn't
> positive,
> >> it
> >> will probably be removed before the release of 1.1, so please submit
> >> comments in this thread on what you think about this API.
> >>
> >> Happy Hacking,
> >> --
> >> Tobias Ivarsson
> >> Hacker, Neo Technology
> >> www.neotechnology.com
> >> Cellphone: +46 706 534857
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o4j-apoc-1.0.zip>
> from the website and using it for the project.
>
> 3. - RAM, OS and Filesystem of your machine?
>
> 2 Intel Xeon Quad-Core 3.0GHz CPUs
> 96 nodes, each node with 2 Intel Quad-Core Xeon E5440 processo
> RAM - 16 GB(2 GB/Co
rcher.search( query, 100 );
>for (ScoreDoc scoreDoc : docs.scoreDocs) {
>Document doc = searcher.doc( scoreDoc.doc );
>fastToLong( doc.getBinaryValue( "_id_" ) );
>}
>}
>
ich stores very long strings (at least several
hundred characters each) and it worked quite well.
> -Original Message-
> From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On
> Behalf Of Mattias Persson
> Sent: Tuesday, June 22, 2010 8:40 AM
> To: Neo4j
e: [Neo4j] Store binary data with byte []
>
> Around what size of byte[] should i consider using some other storage
> means than neo4j?
>
> Could it be as easy as just storing the byte[] as a single file
> transparently?
>
> -atle
>
> On Tue, Jun 22, 2010 at 8:09 AM,
e
> transparently?
>
Sure, that could be a solution, it's not transactionally safe though, but
definately a thing to try out.
>
> -atle
>
> On Tue, Jun 22, 2010 at 8:09 AM, Mattias Persson
> wrote:
> > Neo4j isn't optimized to store big data blobs, so
l...
>
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Your high performance graph database.
> http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
>
>
>
> On Mon, Jun 21, 2010 at 9:12 PM, Mattias Persson
> wrote:
> > I've whipped up a little patch which does just that... anyone keen on
> > trying it out?
?
> Thanks,
> canal
> thanks,
> canal
>
>
>
>
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.. where
>> > many indices are created and has a very short lifespan. I assume
>> > you're using the LuceneIndexService#removeIndex(String key) right? I
>> > see that it just clears the index, it doesn't delete the index on
>> > disk. And I s
t; already there, but what I miss is quick access to them.
>>
>> Thank you very much and best regards!
>>
>> Marius
>>
>> --
>> "Programs must be written for people to read, and only incidentally for
>> machines to execute."
>>
>> - Abelson & Sussma
t will still take up some memory in the JVM as
well. I'll see what I can do about it!
>
> Thank you
>
> Alex
>
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-
; Any help appreciated.
>
> Adnan
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query times on Neo4j. From your
>> experience, how much are the typical query times for large graphs using
>> neo4j for a simple query like:
>> "Find all the first level neighbors of all the nodes in the graph".
>>
&g
i.neo4j.org/content/Batch_Insert
>
> Please let me know your inputs.
>
> Thanks,
> Sue
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. I just tried that and it works like a
charm.
2010/6/17, Mattias Persson :
> 2010/6/17 Arijit Mukherjee :
>> Thanx Mattias for the hints.
>>
>> Actually I was just trying to test whether the shutdown hook may help or
>> not
>> - it didn't. I'm getting
orgot to mention the platforms I've been using:
>
> 1) Apple PPC, 2GB RAM, OSX - Leopard, java version "1.5.0_24"
> 2) Intel x86, 2GB RAM, CentOS 5, java version 1.6.0_20
>
> Regards
> Arijit
>
> On 17 June 2010 16:39, Mattias Persson wrote:
>
>> It can b
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; done
>
> Am I misinterpreting the term "standalone" as used here? Should I be
> running this in a different environment?
>
> Thanks,
> Travis
>
>
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> If I comment out the shutDown invocation, the exception is not thrown, but
> the program never stops. Being a newbie, I don't fully understand what's
> going on here. Can anyone please help me?
>
> Regards
>
> Arijit
>
> --
> "And when the night is cloudy,
> There is still a light that
lookups (in an index with 5M key/value pairs): 30-40ms (0.03 ms/lookup)
that is quite impressive and may be worth implementing as an index
provider for such indices.
>
>
> On Fri, Jun 11, 2010 at 1:51 PM, Tobias Ivarsson
> wrote:
>> On Fri, Jun 11, 2010 at 12:54 PM, Mattias Pers
eo4j.org
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2010/6/11 Tobias Ivarsson :
> On Fri, Jun 11, 2010 at 12:20 PM, Mattias Persson > wrote:
>
>> I tried performance of BabuDB recently. I'm not very used to key-value
>> stores, but I chose this layout of the keys/values:
>>
>> key: key|value|id
>> v
fast,
> but does not work for fulltext query. For now the IndexService is embedded
> in the Object-graph mapper i wrote [2]. Anyone is free to check it out, if
> it looks interesting it could be moved to a neo4j subproject.
>
> -atle
>
>
> [1] http://code.google.com/p/bab
support. This is just a compilation of the kernel.
>
> Taylor
>
>
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> ..
> .
> If i have the timetable data as a property field for each node, can i use
> this data in the astar algorithm?
> Any help would be great
> Thanks
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' the issue by allowing the user to filter out
> >> data on
> >> import, so we don't store everything. This will not satisfy all
> users,
> >> however.
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block of 133 bytes can store 120 bytes
>> of data). This means if all your strings are in 120 bytes multiples in
>> size you will make very efficient use of the store file while if they
>> are empty you will not make very good use of the space (exactly like a
>> normal
/4, Biren Gandhi :
> In that case, what are the ways to estimate storage capacity numbers? Basic
> formula of nodes*9 + edges*33 doesn't seem like a practical one.
>
> On Wed, Jun 2, 2010 at 11:26 PM, Mattias Persson
> wrote:
>
>> String properties are stored in bl
> \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0 \0
> *
>
>
> On Wed, Jun 2, 2010 at 3:50 PM, Biren Gandhi wrote:
>
>> There is only 1 property - "n" (to store name of the node) - used as
>> follows:
&
tore.relationshiptypestore.db.names
> 4.0Kneostore.relationshiptypestore.db.names.id
> 4.0Knioneo_logical.log.active
> 4.0Ktm_tx_log.1
> 80M total
>
>
> On Wed, Jun 2, 2010 at 12:17 AM, Mattias Persson
> wrote:
>
>> Exactly, the problem is most likely that you try t
nstructors,
since you now can reach the graph database via
http://components.neo4j.org/neo4j-kernel/apidocs/org/neo4j/graphdb/PropertyContainer.html#getGraphDatabase()
, making that extra reference unnecessary.
Does anyone have an opinion about all this?
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2010/6/2 Javier de la Rosa :
> Thank you for your clarification.
>
> On 2 June 2010 13:31, Mattias Persson wrote:
>
>> "return filter": {
>> "language": "javascript",
>> "body": "position.node().getProperty( '
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viour you should do:
...
"prune evaluator": {
"language": "builtin",
"value": "none"
}
which converts into PruneEvaluator.NONE.
>
> Sorry, perhaps they are dumb questions, but I need some of light, please.
Not at all, I hope this h
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2010/5/31, Marko Rodriguez :
> Hi,
>
> Okay. I just removed it from Blueprints and everything compiled and all the
> test cases passed. Thus, all is "perfect." :)
>
Yep, aint that swell :)
> Thanks,
> Marko.
>
> On May 31, 2010, at 9:20 AM, Mattias Persson
ed on that, and that I bumped into a problem regarding isolation
recently I decided to remove it entirely, although I've wanted to do
that for quite some time now. Ahhh, now I feel great.
2010/5/31, Mattias Persson :
> Just don't use it and you'll be fine
>
> 2010/5/3
to something
> else?
>
> Thanks,
> Marko.
>
> http://markorodriguez.com
> http://tinkerpop.com
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n index on top of e.g. the year nodes in order to be able to
> effectively select multiple years. Do you have some more info on the
> dataset sizes of your domain so I can flesh the GIST out a bit with
> your search?
>
> /peter
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anks
> -Maaz Tariq
>
>
>
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getAbstractRepresentation(VerboseQuadStrategy.java:62)
>> >> >> > at
>> >> >> > org.neo4j.rdf.store.RdfStoreImpl.addStatement(RdfStoreImpl.java:89)
>> >> >> > at
>> >> >> > org.neo4j.rdf.store.RdfStoreImp
ind the right PC for you. Learn more.
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>> > 9708 1st Ave NW
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>> > rai...@chatsubo.net
>> >
>> > ph: +1 (206) 801-5728
>> > fx: +1 (206) 801-5729
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>>
>>
>>
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>> Hacker, Neo Technology
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>
>
>
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/20 Mattias Persson :
> Thank you all for the supplied use cases you've shared. By the looks
> of it there indeed seems to be cases where indexing for relationships
> is a nice fit.
>
> As Tobias mentioned earlier there's some lab code which I've been
> trying out
framework
>> > > didn't have to be generic. But in this case we'd like to support this
>> type
>> > > of interaction with simple graph structures with only one type of node
>> and
>> > > only one type of relationship since they are the structures that
>> > > social
>> > > network researchers are the most interested in.
>> > >
>> > > Thanks,
>> > > Alex
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ttp://wiki.neo4j.org/content/Traversal_HowTo#Label_all_nodes_in_a_depth_first_traversal_by_postorder
>
> btw, I intend to start adding more traversal howtos to that page, I
> encourage everyone to do the same :)
>
> Cheers,
> Tobias
>
> On Tue, May 18, 2010 at 10:19 AM, Mattias Per
And regarding post-order, I just added post-order depth/breadth first
selectors which can be used like:
TraversalFactory.createTraversalDescription().postorderDepthFirst();
or
TraversalFactory.createTraversalDescription().postorderBreadthFirst();
2010/5/18 Mattias Persson
> The easi
, we will keep working on the
> implementation,
> and hope to push this into the trunk of kernel as soon as possible.
>
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onality.
>
I concur with that
> > Date: Mon, 17 May 2010 10:01:30 +0200
> > From: matt...@neotechnology.com
> > To: user@lists.neo4j.org
> > Subject: Re: [Neo] indexing mode on MetamodelProperties
> >
> > Any thoughts on this?
> >
> > 2010/5/
estimate the
> actual memory requirement. I guess that using lucene index cache further
> increases the memory requirement.
>
Yeah it does... do you have much RAM in your machine? try to increase the
heap to 1 or 2 Gb and see what happens.
>
> Miklós
>
> 2010.05.17. 11:15 keltezéssel
big heap size it can be a problem and cause
out-of-memory problems like you encountered...
>
> Thanks,
> Miklos
>
> 2010.05.17. 9:35 keltezéssel, Mattias Persson írta:
> > Hi, sorry for a late response.
> >
> > Yep, this seems like an excellent fit for Neo4j. Regarding
Any thoughts on this?
2010/5/4 Mattias Persson
> Yep, but in that case just adding a length attribute doesn't really give
> enough. You could just as well add that the string must match a certain
> regex. pattern or something similar.
>
> 2010/5/3 Niels Hoogeveen
&
Have you tried this utility yet?
2010/5/7 Mattias Persson
> I just added a utility to do this operation, here's an example:
>
>VerboseQuadStore myStore = ...
>Context contextToRename = new Context( "http://whatever.org/my-context";
> );
>Cont
n advance,
> Miklós
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_
ourse I am willing to make this change, but I'd like to have feedback
> before doing so.
> Niels Hoogeveen
> _
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> ___________
- you can use any graphic display you want on top of the Sail framework
>>
>> Best regards
>> Hertzel Karbasi
>> Enterprise Architect
>> OPTinity eSolutions, CEO
>> hert...@optinity.com
>>
>>
>> On Mon, May 10, 2010 at 2:39 PM, Erwin Karbasi w
Great!
2010/5/10 Georg M. Sorst
> Hi Mattias,
>
> this looks quite similar to what I have done so I guess I'm on the right
> track :)
>
> Thanks again and best regards,
> Georg
>
>
>
> On 10.05.2010 12:59, Mattias Persson wrote:
>
>> All right, I s
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_
"message", "my commit message");
> tx.finish();
> int revision = transaction.getAttribute("revision");
>
> Now I see my first snippet is quite specific to implementing a versioning
> system, but the later might be useful for other cases too. Is there any w
urn filter": {
>"language": "builtin",
>"name", "all"
> },
>
>
> Should be (?):
> "return filter": {
>"language": "builtin",
>"name": "all"
> },
>
Yep thanks, I fi
re else and keep pointer to some verbose text in
> neo4j?
> What is casing the dramatic difference in loading of the verbose
> literals?
>
> Thanks, Luda
>
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( myStore ).renameContext( contextToRename, newValue );
You can call renameContext in a running transaction or by itself.
You must use the latest versions of the neo4j-rdf component (0.7-SNAPSHOT)
2010/5/6 Mattias Persson
> When I think about it it should be a simple and fast operation t
;
>
>
>
>
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> >
> >
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lo,
> Is it possible to update the context value in verbose triple store ?
> Thank you, Luda
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Neo4j has no built-in concept of users, groups, permissions or ACLs. That
wiki page is one approach of how to model it. However that model is used to
model security on an application level, not security for the graph database
itself (although it might be used for that as well).
>
> Thanks,
> Kevin
>
> _
gt; > > > indexing needs to used.
> > > > > _
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