I have already loaded 50k nodes and established relationships between them through talend. I wrote java code to connect to neo4j and try to execute cypher query. It is connecting to neo4j but showing wrong results. My java code is:
package com.Neo4J;
import org.neo4j.cypher.javacompat.ExecutionEngine;
import org.neo4j.cypher.javacompat.ExecutionResult;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Transaction;
import org.neo4j.graphdb.factory.GraphDatabaseFactory;
public class CaseNeo4J {
private static final String Neo4J_DBPath="/neo4j-community-1.9.2/data/graph.db";
GraphDatabaseService gdb;
public void connect(){
gdb = new GraphDatabaseFactory().newEmbeddedDatabase(Neo4J_DBPath);
Transaction transaction = gdb.beginTx();
ExecutionEngine engine = new ExecutionEngine(gdb);
ExecutionResult result = engine.execute( "start n=node(*) return n");
System.out.println(result.dumpToString());
}
public static void main(String[] args) {
CaseNeo4J neoobj = new CaseNeo4J();
neoobj.connect();
}
}
outputs as :
+-----------+
| n |
+-----------+
| Node[0]{} |
+-----------+
1 row
Actully it should show 50000 nodes but it is showing ony 1... Any idea?
/neo4j-community-1.9.2the downloaded server package from the Neo4j website? Because then, the data should actually be located in/neo4j-community-1.9.2/data/graph.db. If you look now, there will be the directory/neo4j-community-1.9.2/graph.dbbecause your code created it. But it's seemingly empty. – khituras/neo4j-community-1.9.2you won't see the data you inserted into the sever. – khiturasgraph.db? The full path should be - as I wrote in my first comment/neo4j-community-1.9.2/data/graph.db. If there is still nothing then, I don't know. Perhaps make sure the server is down when using the Java class. – khituras