Questions tagged [neo4j-plugin]
18 questions
11
votes
2 answers
Neo4j Install APOC and Graph Algorithms Neo.ClientError.Procedure.ProcedureRegistrationFailed
I have some issues with APOC and Graph Algorithms plugins.
I followed the instruction to put the .jars in {NEO4j_HOME}/plugins and also change the setting in my…
mlo0424
- 359
- 2
- 4
- 16
2
votes
1 answer
How to add plugins to Neo4j Docker Container at build phase instead of dowloading plugins at container run?
I need my neo4j service to use few plugins. My Neo4j Docker build file is :
FROM neo4j:3.5.14
ENV NEO4J_AUTH='neo4j/password'
ENV NEO4J_ACCEPT_LICENSE_AGREEMENT='yes'
ENV NEO4JLABS_PLUGINS='["apoc", "graph-algorithms"]'
RUN echo…
Brotchu
- 115
- 1
- 8
2
votes
1 answer
Neo4j plugin : can't use the spatial procedures after installing neo4j spatial plugin
So I have neo4j3.1.4 community edition, and tried to put neo4j spatial plugin jar v0.24 file under the "E:\softwares\Neo4j CE 3.2.0\plugins" directory. "E:\softwares\Neo4j CE 3.2.0\" is my neo4j installation directory. I couldn't find any of th…
Tanya Lew
- 21
- 2
2
votes
1 answer
Receiving nested Neo4j resutls with Golang
I have a problem with transferring a response from Neo4j to Golang using neoism.
The Neo4j response has nested structure and is assembled with Neo4j plugin in the following way.
I can see that the response is correct in the Neo4j panel. The problem…
Mykola Makhynko
- 113
- 2
- 10
1
vote
1 answer
java.lang.ClassNotFoundException: org.apache.log4j.Logger with elasticsearch and neo4j
I am writing a neo4j plugin in which I want to use elasticsearch. While running the neo4j, I am getting the following error:
ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@435a13ac'…
Darshil Babel
- 145
- 1
- 1
- 10
1
vote
0 answers
Neo4j 3.3.0 docker image with APOC - was successfully initialized, but failed to start
I try to add APOC to my Neo4j instance from Neo4j 3.3.0 docker image but during the startup, I received the following error:
neo4j-database> 2017-12-11 19:57:01.189+0000 ERROR [c.g.r.b.RuntimeKernelExtension] Could not start GraphAware Runtime…
alexanoid
- 24,051
- 54
- 210
- 410
1
vote
1 answer
Issues with exporting Neo4j 3.2.2 Graph to Gephi 0.9.1
As there is no Neo4j plugin for Grephi 0.9.1 I tried to export my Neo4j graph as an .graphml file. I created an empty .graphml file in Grephi and used the procedure:
call apoc.export.graphml.all('file:C:/test.graphml',{})
However I recieve:
Failed…
Grapheneer
- 897
- 8
- 25
1
vote
1 answer
How to return node neighbours in Neo4j using java plugin?
In Cypher returning neighbours would look like this:
START n=node({nodeId}) MATCH n--m RETURN m;
I struggle to create a Java-plugin that does the same. Afterwards i want to see the properties of the returned neighbours and so on. This is my code…
Grapheneer
- 897
- 8
- 25
1
vote
1 answer
How to return multiple nodes in Neo4j using Java plugin?
I try to write a function in Java that finds nodes in my Neo4j graph database with same names and labels.
@UserFunction(value = "boris.example")
@Description("finds nodes with same name")
public ResourceIterator passName(@Name("nodeId")…
Grapheneer
- 897
- 8
- 25
1
vote
1 answer
Embedding j2v8 library in neo4j and reuse of the V8 runtime
I need to embed j2v8-4.6.0 library (bindings for JavaScript engine, V8) for use in neo4j-community-3.1.0 (graph database management system) user-defined functions.
So, code of my simple plugin:
package js;
import org.neo4j.procedure.*;
import…
stdob--
- 28,222
- 5
- 58
- 73
0
votes
2 answers
Neo4j event handling plugin + logging
I am new to neo4j and I want to develop a plugin that registers changes in database to a log, for now i only want log transaction data. I am using maven with java 17 to build the jar and Docker to deploy neo4j with the latest image (5.10.0).
The…
matej
- 1
- 1
0
votes
1 answer
db.contraints() is not known in higher version of Neo4j. Error while using GraphXR to save to database
I am using GraphXR with Neo4j. When trying to save the graph to neo4j, I am presented with the following error:-
There is no procedure name 'db.constraints()'.
I am using v5.3.0. I know that the above procedure is deprecated but is there a…
0
votes
0 answers
Breakpoints in neo4j plugin code don't work when debugging
I'm trying to debug my unit tests for my neo4j plugin code, but while breakpoints in the tests work fine, breakpoints in the plugin code I'm testing don't work. I'm using the neo4j test harness.
I'm setting up my plugin code like this:
…
mcv
- 4,217
- 6
- 34
- 40
0
votes
1 answer
Docker unable to run neo4j (exited with code 4)
I am running neo4j on docker (windows 11), using the following:
version: '3.3'
services:
neo4j:
image: neo4j:latest
container_name: "cmkg-neo4j-db"
restart: always
volumes:
- $HOME/neo4j/data:/data
-…
Amr
- 1
- 1
0
votes
0 answers
User defined procedure timeout
How can I implement a timeout mechanism for my neo4j user-defined procedure?
My code is simply this.
@Procedure(value = "nameOfMyProcedure", mode = Mode.WRITE)
@Description("finds the minimal sub-graph from given nodes")
public Stream
canbax
- 3,432
- 1
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