@Override
public int compareTo(BinaryWritable<M> other) {
byte[] thisBytes = serialize();
byte[] otherBytes = other.serialize();
int thisLen = thisBytes == null ? 0 : thisBytes.length;
int otherLen = otherBytes == null ? 0 : otherBytes.length;
return BytesWritable.Comparator.compareBytes(thisBytes, 0, thisLen, otherBytes, 0, otherLen);
}
