@Override
    public Future<Integer> preSinkTasks(ExecutorService executor) {
        // On COMPLETE_ATOMIC mode
        if (options.getMode().equals(ReplicationMode.COMPLETE_ATOMIC.getModeText()))
            throw new UnsupportedOperationException("The 'complete-atomic' mode is not applicable to file as a sink");
        else
            return null;
    }
Constructs the SqlManager.

@param opts the ReplicaDB ToolOptions describing the user's requested action.
src/main/java/org/replicadb/manager/LocalFileManager.java