private void RemoveOldNodes(LongStream idRange)
{
using (Transaction transaction = Database.beginTx())
{
idRange.mapToObj(id => Database.getNodeById(id)).forEach(Node.delete);
transaction.Success();
}
}
private void RemoveExistingNode(IList <Pair <long, Label[]> > nodesInStore)
{
Node node;
Label[] labels;
do
{
int targetIndex = Random.Next(nodesInStore.Count);
Pair <long, Label[]> existingNode = nodesInStore[targetIndex];
node = Db.getNodeById(existingNode.First());
labels = existingNode.Other();
} while (labels.Length == 0);
node.Delete();
}
private void ModifyLabelsOnExistingNode(IList <Pair <long, Label[]> > existingNodes)
{
int targetIndex = Random.Next(existingNodes.Count);
Pair <long, Label[]> existingPair = existingNodes[targetIndex];
long nodeId = existingPair.First();
Node node = Db.getNodeById(nodeId);
node.Labels.forEach(node.removeLabel);
Label[] newLabels = RandomLabels();
foreach (Label label in newLabels)
{
node.AddLabel(label);
}
existingNodes.RemoveAt(targetIndex);
existingNodes.Add(Pair.of(nodeId, newLabels));
}