[zeromq-dev] PUB-SUB filtering question
sustrik at 250bpm.com
Mon Aug 16 15:59:52 CEST 2010
> There are some problems with considering the topics byte sequences.
> First, it will still break on byte sequences with 0x00 in the middle
> (like raw UUIDs or something), right?
No. It should not.
> Second, java bindings work with
> Strings not byte arrays at the moment, which might pose problems with
The original java bindings I've written used byte arrays. If Java
binding developers have changed it to string and if Java string is
incapable of holding a binary zero, then it should be reported as bug IMO.
> If pub/sub topics are considered byte sequences, then I think the API
> should change on both sides — setsockopt(ZMQ.SUB, char* topic, int
> topic_length) in C and socket.setSubscribe(byte topic) in Java.
The C API looks exactly like that.
As for the Java binding, it depends on whether Java string is
zero-terminated. One additional problem may be whether Java strings are
ASCII or unicode.
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