I'm looking into the LVQ behaviour for QPid messaging setup. The typical
example usage example (in C++) for this is something like:
Message request;
std::string key;
args.getLVQKey(key);
request.getHeaders().setString(key, "key1");
request.setData("something");
...
That's all very well for some uses, I suppose, but where does the key
actually come from? I can't find a way to set it via the C++ APIs, or by
using something like qpid-config. So, is the "LVQ key" some magic
property set internally? Isn't it supposed to be possible request "LVQ
behaviour" for any key according to AMQP?
I think (in my application) I would prefer not having the sender set an
"LVQ key" as such, but instead just set one or more general "id"
properties, and let messaging config external to the application decide
if a queue is an LVQ, and if it is, which property to use when deciding
if messages are to be considered the same.
- Toralf
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