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ashwini hirlekar

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since Apr 01, 2014
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Recent posts by ashwini hirlekar

Hi,
I have one column "category" which contain data like

`"Failed extract of third-party root list from auto update cab at: <http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab>; with error: The data is invalid."`

I need to select url part in between `" < > "` sign of category column.

how to do this usign regex?
Please help.
7 years ago
I have created nodes and relationships in java using Neo4j jars,I am trying to display the same from Neoclipse, I am getting Exception when trying to create connection from Neoclipse to the folder created by java program (I am using windows 7) . Exception:
java.lang.IllegalStateException:Mismatching store version found(v0.A.1 while expecting v0.A.0)
and the store is not cleanly shutdown.
Recover the database with previous database version and then attempt to upgrade .
after this i added graphDb.shutdown(); code then i got different exception:

org.neo4j.kernel.impl.storemigration.StoreUpgrader$UnableToUpgradeException:
Not all store Files match the version required for successful upgrade.
List of jar files:
geronimo-jta_1.1_spec-1.1.1.jar
lucene-core-3.6.2.jar
neo4j-2.0.1.jar
neo4j-cypher-2.0.1.jar
neo4j-graph-algo-2.0.1.jar
neo4j-graph-matching-2.0.1.jar
neo4j-jmx-2.0.1.jar
neo4j-kernel-2.0.1.jar
neo4j-lucene-index-2.0.1.jar
neo4j-udc-2.0.1.jar
7 years ago
Hi,

I am trying to create new neo4j EmbeddedDatabase() in java using jar "neo4j-kernel-2.0.0-M03".
GraphDatabaseService graphDb= new GraphDatabaseFactory().newEmbeddedDatabase("D://New Graph");
Transaction tx=graphDb.beginTx();
// remaining code here............................

I am getting error "org.neo4j.graphdb.index.IndexProviderKernelExtensionFactory$IndexProviderKernelExtension@6e705b40' was successfully initialized, but failed to start."
Caused by: java.lang.AbstractMethodError: org.neo4j.graphdb.index.IndexProvider.load(Lorg/neo4j/graphdb/DependencyResolver;)Lorg/neo4j/graphdb/index/IndexImplementation;

How to fix it? Please guide
7 years ago
I am creating unique neo4j relationships in java class based on no. of column values in database. Value of column "Interface_Name" will be assigned to each relationship.My Code :

while(rs.next()){
String rel=rs.getString("Interface_Name");
GraphDatabaseService graphDb = new EmbeddedGraphDatabase("D://My Graph");
Transaction tx=graphDb.beginTx();
try{
RelationshipType rel = DynamicRelationshipType.withName(rel); //Gives error since "rel" is string
//
.....
tx.success();
}
How can i create multiple relationship Types based on Column values in DB?Inside while loop Relationship Types should get created according to DB values.
7 years ago
I am creating unique neo4j nodes in java class based on column values in database. column value will be assigned to each node. Code is as follow:
public void createNode(String name) {
GraphDatabaseService graphDb = new EmbeddedGraphDatabase("D://NewGraph");
Transaction tx=graphDb.beginTx();
try{
Node nodeName;
nodeName.addLabel(DynamicLabel.label(name));
nodeName = graphDb.createNode();
nodeName.setProperty("name", nodeName);
tx.success();
}


i have already added neo4j.kernel-1.6.M01.jar but still i am getting an error "DynamicLabel cannot be resolved". please guide.
Hi,

I have created nodes and relationships in java class using Neo4j. how can i represent those relationships in the graph ? where to show them in graph like structure using java code?

Please guide.
7 years ago
I am trying to connect neo4j from java however I am getting following error:

]org.neo4j.graphdb.TransactionFailureException: Could not create data source [nioneodb], see nested exception for cause of error

Exception in thread "main" org.neo4j.graphdb.TransactionFailureException: Could not create data source [nioneodb], see nested exception for cause of error
org.neo4j.kernel.impl.storemigration.UpgradeNotAllowedByConfigurationException: Failed to start Neo4j with an older data store version. To enable automatic upgrade, please set configuration parameter "allow_store_upgrade=true"

I changed ""allow_store_upgrade" parameter in neo4j.properties but still getting the same error.

Please guide .
7 years ago
I am trying to connect neo4j from java class , i have added all the required jar files however i am getting following error :
java.lang.NoClassDefFoundError: org/apache/lucene/index/IndexNotFoundException
java.lang.ClassNotFoundException: org.apache.lucene.index.IndexNotFoundException


though i have included neo4j-lucene-index-2.1.0-M01.jar file, which jar file should i include for lucene index? please guide
7 years ago