private void addMutantToDB(
Individual original, Individual mutant, int generationNumber, Location location) {
final GraphDatabaseService graphDB = GraphDB.graphDB();
IndexManager index = graphDB.index();
Index<Node> individualNodes = index.forNodes("individuals");
Index<Node> locationNodes = index.forNodes("locations");
Transaction tx = graphDB.beginTx();
Relationship mutantRelationship;
Relationship node;
Node individualNode;
try {
individualNode = graphDB.createNode();
individualNode.setProperty("fitness", mutant.getGlobalFitness());
individualNode.setProperty("id", mutant.uid.toString());
Node locationNode = locationNodes.get("locationID", location.getPosition()).next();
node = individualNode.createRelationshipTo(locationNode, RelTypes.LOCATEDIN);
node.setProperty("generation", generationNumber);
Node originalNode = individualNodes.get("id", original.uid.toString()).next();
mutantRelationship = individualNode.createRelationshipTo(originalNode, RelTypes.MUTANTOF);
mutantRelationship.setProperty("generation", generationNumber);
individualNodes.add(individualNode, "id", mutant.uid.toString());
tx.success();
} finally {
tx.finish();
}
}
