Thanks for reply Michael, But what is the use of this _ one and it will also the case if i will craete label using core java api , cypher query or it is specific to SDN only?
Thanks, Pallavi On Thursday, 12 June 2014 17:02:34 UTC+5:30, Michael Hunger wrote: > > It needs the labels with the underscore to identify the one which actually > belongs to this class (in the inheritance hierarchy). > > Michael > > Am 12.06.2014 um 14:28 schrieb PM <[email protected] <javascript:>>: > > Hi Michael, > > I am also facing the same issue creating node labels one with underscore > and another without underscore. I m using SDN 3.0.1 & Neo4j 2.0.3 . Is this > SDN specific or there should be some configuration in SDN so i can stopped > labels creating with underscore. > > > > > Thanks, > Pallavi > > On Tuesday, 10 June 2014 20:44:52 UTC+5:30, Michael Hunger wrote: >> >> Hmm interesting. >> >> Can you return two of the different nodes side by side? >> >> Do you only have movies in your db? >> >> Michael >> >> Am 14.05.2014 um 13:25 schrieb Manuel Moraga <manuel.mor...@gmail. >> <http://gmail.com/>com <http://gmail.com/>>: >> >> I have already posted this on StackOverflow, but haven't gotten any >> answers. I suspect there may be a bug involved, or it's just a gotcha that >> I must have missed somewhere. I have tried everything I could think of, and >> checked the documentation but still can't find the reason why my nodes >> can't be mapped even after adding the correct primary SDN label. >> >> I'm running SDN 3.0.2.RELEASE and neo4j 2.0.3 on arch linux x64 with >> Oracle Java 1.8.0_05 >> >> Trying to retrieve nodes in SDN, imported using the Neo4j CSV Batch >> Importer <https://github.com/jexp/batch-import>, gives the >> java.lang.IllegalStateException: >> >> java.lang.IllegalStateException: No primary SDN label exists .. (i.e one >> with starting with _) >> >> This is after having added a new label through a cypher query: >> >> match (n:Movie) set n:_Movie; >> >> Inspecting nodes created through SDN shows they have the same labels. The >> result when running >> >> match (n) where id(n)={nodeId} return labels(n) as labels; >> >> as found in LabelBasedStrategyCypher.java >> <https://github.com/spring-projects/spring-data-neo4j/blob/1bd9c20787c2589b84cc1f3498675ea34d5c13e3/spring-data-neo4j/src/main/java/org/springframework/data/neo4j/support/typerepresentation/LabelBasedStrategyCypherHelper.java> >> is >> the same for both: >> >> ["Movie","_Movie"] >> >> Saving and retrieving nodes thorugh SDN works without any issues. I must >> be missing something as I got the impression that setting the appropiate >> labels >> <http://neo4j.com/blog/spring-data-neo4j-progress-update-sdn-3-neo4j-2> >> should >> be enough. >> >> My CSV file looks like this. The appId is only used to assure the node is >> the same that we have stored earlier, as the internal nodeId is Garbage >> collected <http://api.neo4j.org/2.0.3/org/neo4j/graphdb/Node.html> and >> new nodes could get old nodeIds after the old ones are deleted. The nodeId >> is used for actual lookups and for connecting relationships and so on. >> >> appId:int l:label title:string:movies year:int1 Movie Dinosaur Planet >> 20032 Movie Isle of Man TT 2004 Review 2004 >> >> I have made more tests, checking the source of >> LabelBasedNodeTypeRepresentationStrategy to see what is going wrong. >> Running the readAliasFrom() method that the Exception is thrown from does >> not return any errors: >> >> String query = "start n=node({id}) return n";Node node = null;for(Node n : >> neo4jTemplate.query(query,params).to(Node.class)){ >> node = n;} >> // when running the readAliasFrom method manually the label is returned >> correctlyLabelBasedNodeTypeRepresentationStrategy strategy = new >> >> LabelBasedNodeTypeRepresentationStrategy(neo4jTemplate.getGraphDatabase());System.out.println("strategy >> returns: " +(String)strategy.readAliasFrom(node)); >> // trying to convert the node to a movie object, however throws the Illegal >> State ExceptionMovie movie = null; >> movie = neo4jTemplate.convert(node,Movie.class); >> >> So, the _Movie label exists, running the readAliasFrom() method manually >> doesn't throw Exceptions but trying to convert the node into a Movie does. >> Nodes created from SDN do not have these issues, even if they look >> identical to me. >> >> /Manuel >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Neo4j" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> >> > -- > You received this message because you are subscribed to the Google Groups > "Neo4j" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > For more options, visit https://groups.google.com/d/optout. > > > -- You received this message because you are subscribed to the Google Groups "Neo4j" group. 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