this(rootNode, null);
}
public SegmentMemory(NetworkNode rootNode, StreamTupleEntryQueue queue) {
this.rootNode = rootNode;
this.linkedNodeMask = new AtomicBitwiseLong();
this.dirtyNodeMask = new AtomicBitwiseLong();
this.pathMemories = new ArrayList<PathMemory>(1);
this.nodeMemories = new LinkedList<Memory>();
this.stagedLeftTuples = new LeftTupleSetsImpl();
this.queue = queue;
}