@Override
	public boolean hasNextLeaf() throws IOException {
		int nextLeafId = buffer.getInt(NEXT_LEAF_ID_OFFSET);
		return (nextLeafId >= 0);
	}
Construct a new variable-length-key record leaf node with no siblings.
@param nodeMgr table node manager.
@param keyType key Field type
@throws IOException thrown if IO error occurs
Ghidra/Framework/DB/src/main/java/db/VarKeyRecordNode.java