public final void fixupOps() {
    // As the selection key can be changed at any point due to node
    // failure, we'll grab the current volatile value and configure it.
    SelectionKey s = sk;
    if (s != null && s.isValid()) {
      int iops = getSelectionOps();
      getLogger().debug("Setting interested opts to %d", iops);
      s.interestOps(iops);
    } else {
      getLogger().debug("Selection key is not valid.");
    }
  }
Represents a node with the memcached cluster, along with buffering and
operation queues.
src/main/java/net/spy/memcached/protocol/TCPMemcachedNodeImpl.java