Sorry forwarding to the list, accidentally only sent to Peter. From: [email protected] To: [email protected] Subject: RE: [Neo4j] Neo4j spatial Date: Fri, 18 Mar 2011 08:54:51 -0700
Peter/Craig,Want to continue this thread, so I need to: 1) Load a lot of data initially about a nodes in paths inside a park2) I need to query this to calculate shortest paths, run complex traversals based on various properties of each node 3) I need to be able to update the graph (perform CRUD operations on the fly)4) I need to be periodically able to flush the contents of the graph and reload If I stay with my approach of using a background thread in java to perform operations 1,4 what are the tradeoffs between doing 2 and 3 in java versus using the REST server. I would presumably be using gremlin and pipes in both approaches. Any thoughts on this.Regards > Date: Thu, 17 Mar 2011 07:19:16 +0100 > Subject: Re: [Neo4j] Neo4j spatial > From: [email protected] > To: [email protected] > CC: [email protected] > > Saikat, > which approach to use - atomic REST calls or a server plugin to work > in the background - depends on the load of things. If you are > importing stuff in the beginning, I would not use REST. If you are > thinking about "normal" operations with moderate load, I think REST > will be fine. > > Cheers, > > /peter neubauer > > GTalk: neubauer.peter > Skype peter.neubauer > Phone +46 704 106975 > LinkedIn http://www.linkedin.com/in/neubauer > Twitter http://twitter.com/peterneubauer > > http://www.neo4j.org - Your high performance graph database. > http://startupbootcamp.org/ - Öresund - Innovation happens HERE. > http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. > > > > On Thu, Mar 17, 2011 at 1:11 AM, Saikat Kanjilal <[email protected]> wrote: > > I've written a Quasi-mashup which loads points from google maps using a > > background thread in Spring to initially load points into neo4j, what I'm > > trying to evaluate with the goal of simplifying the architecture is the > > following: > > > > 1) Should I rejigger the tomcat service code to have a webservice call to > > add points which would be called through the steps you describe below from > > google or bing maps given that I already have service API calls that do > > traversals with pipes and shortest path calculations > > > > 2) Take the rexster and http approach to upload the points through some > > automated process from my maps and stick with the http approach when doing > > traversals through gremlin and shortest path calculations. > > > > > > Also I am trying to play with neo4j-spatial and trying to figure out how to > > leverage it moving forward > > > > That was a mouthful :) > > Sent from my iPhone > > > > On Mar 16, 2011, at 4:49 PM, Craig Taverner <[email protected]> wrote: > > > >> Hi Saikat, > >> > >> There are a few places you can look for code samples. One of the best > >> places > >> is the set of test cases included in neo4j spatial. You can find them at > >> https://github.com/neo4j/neo4j-spatial/tree/master/src/test/java/org/neo4j/gis/spatial. > >> In particular, since you are interested mostly in point data, take a look > >> at > >> TestSimplePointLayer.java<https://github.com/neo4j/neo4j-spatial/blob/master/src/test/java/org/neo4j/gis/spatial/TestSimplePointLayer.java>and > >> LayersTest.java<https://github.com/neo4j/neo4j-spatial/blob/master/src/test/java/org/neo4j/gis/spatial/LayersTest.java> > >> . > >> > >> What you will find in those classes is Java code for adding points to the > >> database, similar, but more extensive than the code in the blog. > >> > >> Regarding your specific case, if you are working with a normal google map > >> or > >> bing map, and want to port the points into a local database, you would need > >> to export them, and write a simple importer. If you have written a mashup > >> between google or bing maps and your own neo4j-based web application, you > >> should be able to use some client side coding to automate this, accessing > >> the map, and posting the points directly into your own server (where of > >> course you would have some code adding the points to the database). Does > >> this answer your question? > >> > >> Regards, Craig > >> > >> On Thu, Mar 17, 2011 at 12:32 AM, Saikat Kanjilal > >> <[email protected]>wrote: > >> > >>> Hi Folks, > >>> I was reading through the docs on neo4j spatial and was wondering about a > >>> few things: > >>> > >>> 1) If I have a google or bing map and I manually plot some points can I > >>> use > >>> neo4j spatial to automate the loading of those points into my neo4j db? > >>> > >>> 2) Are there code samples for neo4j-spatial or implementations I can look > >>> at for a deeper look at the API's etc? > >>> > >>> Best Regards > >>> > >>> Sent from my iPhone > >>> _______________________________________________ > >>> Neo4j mailing list > >>> [email protected] > >>> https://lists.neo4j.org/mailman/listinfo/user > >>> > >> _______________________________________________ > >> Neo4j mailing list > >> [email protected] > >> https://lists.neo4j.org/mailman/listinfo/user > >> > > _______________________________________________ > > Neo4j mailing list > > [email protected] > > https://lists.neo4j.org/mailman/listinfo/user > > _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
