February 2015
Intermediate to advanced
198 pages
4h 17m
English
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Resequencers
A resequencer can be used to enforce an ordered delivery to the next subsystem. It will hold on to a message till all messages numbered before it have been delivered. For example, if messages have been numbered 1 to 10 and if the message numbered 8 arrives sooner than the messages numbered 1 to 7, it will hold it in temporary storage and will be delivered only when the delivery of messages numbered 1 to 7 is complete. The SEQUENCE_NUMBER header of the message is used by resequencer to track the sequences. It can be considered as a special case of aggregator, which holds on to the message based on a header value but does not do any processing on the messages:
<int:resequencer input-channel="fetchedFeedChannelForAggregatior" output-channel="cahinedInputFeedChannel" ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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