[rabbitmq-discuss] Headers Exchange Logic
tonyg at lshift.net
Fri Jul 17 15:41:23 BST 2009
Darien Kindlund wrote:
> According to the spec (I think), you can supply regex to
> match on particular headers, when binding a queue to an exchange.
Sadly, it's not even regular expressions. It's either an AND or an OR of
various headers each either existing, or precisely matching the pattern
> However, I wondering if it's possible to do something like:
> - Bind 'bar' to 'foo', where header 'VALUE > 20'. Meaning: evaluate
> this header; if it's not an integer or if the value is <= 20, discard or
> let other applicable queues receive it. Otherwise, accept.
No, not yet.
> I'm pretty sure this type of language isn't supported, but I'd be
> curious if it's something you're considering in the future.
Absolutely -- there's a hugely rich vein of possible exchange behaviours
matching? The sky's the limit :)
 Tony Garnock-Jones | Mob: +44 (0)7905 974 211
 LShift Ltd | Tel: +44 (0)20 7729 7060
  http://www.lshift.net/ | Email: tonyg at lshift.net
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