public static PrimitiveIntIterator nodeGetLabels(
StoreReadLayer storeLayer, ReadableTxState txState, long nodeId)
throws EntityNotFoundException {
if (txState.nodeIsDeletedInThisTx(nodeId)) {
return PrimitiveIntCollections.emptyIterator();
}
if (txState.nodeIsAddedInThisTx(nodeId)) {
return PrimitiveIntCollections.toPrimitiveIterator(
txState.nodeStateLabelDiffSets(nodeId).getAdded().iterator());
}
return txState.nodeStateLabelDiffSets(nodeId).augment(storeLayer.nodeGetLabels(nodeId));
}
@Override
public PrimitiveIntIterator nodeGetRelationshipTypes(KernelStatement state, long nodeId)
throws EntityNotFoundException {
if (state.hasTxStateWithChanges() && state.txState().nodeModifiedInThisTx(nodeId)) {
ReadableTxState tx = state.txState();
if (tx.nodeIsDeletedInThisTx(nodeId)) {
return PrimitiveIntCollections.emptyIterator();
}
if (tx.nodeIsAddedInThisTx(nodeId)) {
return tx.nodeRelationshipTypes(nodeId);
}
Set<Integer> types = new HashSet<>();
// Add types in the current transaction
PrimitiveIntIterator typesInTx = tx.nodeRelationshipTypes(nodeId);
while (typesInTx.hasNext()) {
types.add(typesInTx.next());
}
// Augment with types stored on disk, minus any types where all rels of that type are deleted
// in current tx.
PrimitiveIntIterator committedTypes = storeLayer.nodeGetRelationshipTypes(nodeId);
while (committedTypes.hasNext()) {
int current = committedTypes.next();
if (!types.contains(current) && nodeGetDegree(state, nodeId, Direction.BOTH, current) > 0) {
types.add(current);
}
}
return PrimitiveIntCollections.toPrimitiveIterator(types.iterator());
} else {
return storeLayer.nodeGetRelationshipTypes(nodeId);
}
}