Hi
I'm new to MINA. I've been going through the examples and I'm not
quite understanding how the NEED_DATA and returning null in the
decoders work. Specifically, I do not understand the remaining and
hasRemaining method in ByteBuffer.
The example decoder goes like this:
if (in.remaining() < Constants.HEADER_LEN) {
return MessageDecoderResult.NEED_DATA;
}
I interpret it like "if there are less remaining bytes than the size
of the header, we need more data", which doesn't make sense.
Also, I tried to do something like this in a decoder:
if (in.hasRemaining()) {
return null; // Need more data.
}
On the beggining of the method. The method get's called three times,
and it never returns false on the hasRemaining method.
The question goes simply to: how to know if there's enough data when
decoding an object with many primitives and some strings (of variable
size)?
Thanks
