@Override
public int deserializeKV(DataInputStream in, SizedWritable key, SizedWritable value)
throws IOException {
if (!in.hasUnReadData()) {
return 0;
}
key.length = in.readInt();
value.length = in.readInt();
keySerializer.deserialize(in, key.length, key.v);
valueSerializer.deserialize(in, value.length, value.v);
return key.length + value.length + KV_HEAD_LENGTH;
}
@Override
public void updateLength(SizedWritable key, SizedWritable value) throws IOException {
key.length = keySerializer.getLength(key.v);
value.length = valueSerializer.getLength(value.v);
return;
}