public void serialize(SerializerOutput out, HashNode obj) throws IOException {
if (obj.getClass() == HashBucket.class) {
out.write(Serialization.HTREE_BUCKET);
HashBucket b = (HashBucket) obj;
b.writeExternal(out);
} else {
out.write(Serialization.HTREE_DIRECTORY);
HashDirectory n = (HashDirectory) obj;
n.writeExternal(out);
}
}
