All applications using Neo4j depend on drivers to execute statements to update or query data. Neo4j drivers are mostly built on the binary Bolt protocol. Official drivers exist for Java, JavaScript, .Net, Python, and Go and more. Other languages (R, ...
From the org.neo4j.driver.v1.StatementRunner javadoc : While these semantics introduce some complexity, it gives the driver the ability to handle infinite result streams (like subscribing to events), significantly lowers the memory overhead for your...
No I have been trying to dockerize my go api which is supposed to use the new driver to connect to a database installed in another container. I have followed an article and thanks to the author, I was able to build the application using docker-compos...
Hi guys I am learning both CYPHER and py2neo and sometimes I feel that things could be improved in the documentation for this (py2neo http://py2neo.org) particular driver. I made some comments on Slack about it and I was recommended to be more precis...
Hi, I have a mutation createaAccess that creates a HAS_ACCESS_TO relationship between 2 nodes. This works fine. createaAccess(user: ID!, entity_role: [String]!, application_role: [String]!, entity: Int!): WorkstationUser @cypher( statem...
Suppose I want to define a relationship like the following : a:University -[ENTRY]-> b:Department OR a:University -[ENTRY]-> p:Position How to do this with neo4j-graphql-js ?
export const typeDefs = ` type University { id: ID! level: Int } type Department { id: ID! name: String level: Int has: [Position] @relation(name: "HAS", direction: "OUT") childsof: [Department] @relation(name: "CHILD_OF", direction: "I...
After reading many threads in which my problem seems to be discussed, I still don't find any answers. I am trying to connect my 3.3.0 Neo4j embedded but everytime I run my scripts to do so I get this exception: Exception in thread "main" java.lang.Ru...
Hi everyone! I finally made the neo4r movie database example, I didn't follow the neo4j example because it didn't cover the main functions of the neo4r package. Also, there are some issues to fix. Anyway, I prefer to wait for revision to merge in the...
Hello, I invoke the Neo4j driver from an application to connect to Neo4j. Now I use a logger in my application and write the logs of my application into a certain log file in the application directory. In addition, I now have the requirement that all...
My colleague who understands the Java stack far better than I pointed out that a synchronously queried database may not work so well with the reactive patterns we're using in our projects (WebFlux). The concern was thread starvation, so he found me t...
Hi all, I am working on a unit test for an extension to apoc I started long ago. So long, I am using a branch based upon neo 3.3 My test fails because t.getQueryStatistics().getNodesDeleted() is always zero. So I was wondering if getQueryStatistics w...
So I have a quite functional setup that will add nodes as needed without duplication, however I'm at a total loss on how to remove a relationship between two nodes via save. Using og, 3.1.7 @NodeEntity public class Person extends Entity { @Relati...
I have a repository method that returns a list of lists. List<List<RouteRelationship>> findPaths(String a, String z, String rate); When I run my query with the repository method defined as above, I get no data returned. However if I change the meth...
Hi, I'm using the java driver version 1.7.3, and the OGM 3.1.7 with the bolt driver. I've ended up using the java driver to import data, as doing it through the OGM was proving to be too slow (and ran out of memory for the larger data saves). I kep...
Hi all, I've been using neo4j for awihle now but just started taking advantage of the awesome ogm java library. Ive been struggling over an issue for the past couple days and I cannot for the life of me figure it out. I've finally decided to break do...
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