On 04.05.14 11:00, Heiko Seeberger wrote:
Not all communication follows the request-response pattern. In my case
there's no need for an application level response, its only purpose is
the technical ACK.
Isn't that a special case of request-response?
Heiko
On Sun, May 4, 2014 at 10:41 AM, Martin Krasser
<[email protected] <mailto:[email protected]>> wrote:
Maybe a confirm(reply: Any) method would make sense, where reply
is sent to the sender of the Persistent message. This would also
allow for some internal optimizations.
On 04.05.14 10:18, Martin Krasser wrote:
On 04.05.14 10:07, Heiko Seeberger wrote:
On Sun, May 4, 2014 at 9:55 AM, Martin Krasser
<[email protected] <mailto:[email protected]>> wrote:
Hi Heiko,
On 03.05.14 06:58, Heiko Seeberger wrote:
Hi,
A short-lived actor A should send a "result" message to
some other actor B before it terminates itself. As it is
important that this message gets delivered, I would like to
use a channel in order to retry message delivery. In case
of permanent delivery failure (redeliverMax exceeded) the
short-lived actor A would send the message to some other
actor C which would know what to do. This can be
implemented using a redeliverFailureListener.
My question is: How can the short-lived actor A know that
the message has been delivered, i.e. the
ConfirmablePersistent message has been confirmed? AFAIK
there's no deliverSuccessListener or such.
Actor B should send an application-level reply to actor A.
Channels preserve sender references.
Well, that's how I have already implemented it without channels.
I was hoping that channels would make that easier ;-)
The purpose of a channel is to make delivery of a message from A
-> B more reliable (by implementing a retry-ack protocol where
the ack is generated by the receiver by calling confirm()) and it
shouldn't hide an application-level conversation between actors A
and B which also includes the reply from B to A. You'd also send
a reply if A sends a message to B without using a channel. Hence,
when using a channel, B should confirm delivery *in addition* to
sending a reply.
Is it possible to add a feature like a deliverSuccessListener in
the future?
It's not a big deal to add that but I'm not sure if it's a good
idea from a design perspective. Curious what others think ...
Thanks
Heiko
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Martin Krasser
blog:http://krasserm.blogspot.com
code:http://github.com/krasserm
twitter:http://twitter.com/mrt1nz
--
>>>>>>>>>> Read the docs: http://akka.io/docs/
>>>>>>>>>> Check the FAQ:
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>>>>>>>>>> Search the archives:
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