Ain't that cool :-) I speak from experience it works and works well. Lucene is an efficient index, the integration is seemless (from my experience).
On 14 Aug 2009, at 17:13, Mattias Persson wrote: > // One instance per NeoService is enough > IndexService indexService = new LuceneIndexService( neoService ); > > and that will be your index, fully transactional and participates in > your neo transactions. > > 2009/8/14 Onur AKTAS <onur.ak...@live.com>: >> >> So I must build it on the top of Lucene? >> Hmm, shouldn't it be a native property of neo4j? Do we have a >> chance to get Node's id after we insert it? >> So I can use an additional key - value based database for keeping >> the relation between Node and User like below: >> (rdbms_user_id, neo4j_node_id) >> >> Is it a good idea? >> >>> From: neil.el...@mangala.co.uk >>> To: user@lists.neo4j.org >>> Date: Fri, 14 Aug 2009 16:21:38 +0100 >>> Subject: Re: [Neo] neo4j Beginner Question >>> >>> And then use the index-utils to find the node (it's a good simple >>> and >>> efficient integration with Lucene). >>> >>> On 14 Aug 2009, at 16:10, Dan Heaver wrote: >>> >>>> Onur, add a property to each node to hold the surragate key from >>>> your >>>> RDBMS... >>>> >>>> Dan >>>> >>>> On 14 Aug 2009, at 15:30, Onur AKTAS <onur.ak...@live.com> wrote: >>>> >>>>> >>>>> Thank you for your response. I'm trying to understand the main >>>>> concept, please correct me if I am wrong. >>>>> >>>>> For example, there are many users of an application and each >>>>> represented as "Node". And each User has a "UserId" in RDBMS. I >>>>> have checked "Node" class and saw that there is a method called >>>>> as " >>>>> getId() " but I could not see "setId()" for mapping the User in >>>>> the >>>>> RDBMS to neo4j. >>>>> >>>>> Sample data: (UserId / Friends Ids) >>>>> 1 - [2, 4] >>>>> 2 - [1, 3] >>>>> 3 - [10] >>>>> 4 - [1, 3, 5] >>>>> 5 - [3] >>>>> >>>>> And I need to query " What are the all shortest paths from 1 to 10 >>>>> for max length 4 " >>>>> And results should be, >>>>> >>>>> 1 -> 2 -> 3 -> 10 >>>>> 1 -> 4 -> 3 -> 10 >>>>> * 1 -> 4 -> 5 -> 3 -> 10 (It will not be shown because it exceeds >>>>> the length 4). >>>>> >>>>> You mean that it can be handled with neo4j, but how can I map each >>>>> User in RDBMS, to Nodes by their original Ids? >>>>> >>>>> Thanks. >>>>> >>>>> >>>>> >>>>>> From: neubauer.pe...@gmail.com >>>>>> Date: Wed, 5 Aug 2009 11:16:15 +0200 >>>>>> To: user@lists.neo4j.org >>>>>> Subject: Re: [Neo] neo4j Beginner Question >>>>>> >>>>>> Hi Onur >>>>>> >>>>>> 2009/8/4 Onur AKTAS <onur.ak...@live.com>: >>>>>>> Calculating,"friends of friends", 3rd degree contacts or 4th >>>>>>> degree etc. is not a good idea with RDBMS. In short words, neo4j >>>>>>> fits perfectly for these kinds of jobs? >>>>>> yes, that is the kind of problems Neo4j and Graph Databases are >>>>>> trying >>>>>> to solve in general. Semi-structured data, havy use of relational >>>>>> information between information entities and complex analysis of >>>>>> high >>>>>> depth fast are some of the common use cases for using a graph >>>>>> database. >>>>>> >>>>>>> Do we have a chance to scale neo4j by adding nodes, does it >>>>>>> support distributed processing? Also, can we delete any node in >>>>>>> the graph when we need to delete user or we must create the >>>>>>> entire >>>>>>> graph again when we need any updates? Do graph objects have id's >>>>>>> that helps us to find the node quickly? >>>>>> >>>>>> Neo4j atm does not support distributed processing or partitioning >>>>>> the >>>>>> graph. There is high-availability and online-backup being >>>>>> worked on >>>>>> which feels more acute since Neo4j on a single instance scales >>>>>> over 1 >>>>>> Billion primitives, which should be enough for most immediate >>>>>> scenarios. >>>>>> But there are of course ways to achieve a custom partitioning >>>>>> using >>>>>> targeted techniques - but that depends on your use case ... >>>>>> >>>>>> HTH >>>>>> >>>>>> /peter >>>>>> _______________________________________________ >>>>>> Neo mailing list >>>>>> User@lists.neo4j.org >>>>>> https://lists.neo4j.org/mailman/listinfo/user >>>>> >>>>> _________________________________________________________________ >>>>> Anılarınızı istediğiniz herkesle çevrimiçi paylaşın. >>>>> http://www.microsoft.com/turkiye/windows/windowslive/products/photos-share.aspx?tab=1 >>>>> _______________________________________________ >>>>> Neo mailing list >>>>> User@lists.neo4j.org >>>>> https://lists.neo4j.org/mailman/listinfo/user >>>> _______________________________________________ >>>> Neo mailing list >>>> User@lists.neo4j.org >>>> https://lists.neo4j.org/mailman/listinfo/user >>> >>> _______________________________________________ >>> Neo mailing list >>> User@lists.neo4j.org >>> https://lists.neo4j.org/mailman/listinfo/user >> >> _________________________________________________________________ >> Windows Live tüm arkadaşlarınızla tek bir yerden iletişim >> kurmanıza yardımcı olur. >> http://www.microsoft.com/turkiye/windows/windowslive/products/social-network-connector.aspx >> _______________________________________________ >> Neo mailing list >> User@lists.neo4j.org >> https://lists.neo4j.org/mailman/listinfo/user >> > > > > -- > Mattias Persson, [matt...@neotechnology.com] > Neo Technology, www.neotechnology.com > _______________________________________________ > Neo mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user _______________________________________________ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
