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Spring Integration Essentials
book

Spring Integration Essentials

by CHANDAN K PANDEY
February 2015
Intermediate to advanced
198 pages
4h 17m
English
Packt Publishing
Content preview from Spring Integration Essentials

Aggregators

The aggregators are the opposite of splitters—they combine multiple messages and present them as a single message to the next endpoint. This is a very complex operation, so let's start by a real life scenario. A news channel might have many correspondents who can upload articles and related images. It might happen that the text of the articles arrives much sooner than the associated images—but the article must be sent for publishing only when all relevant images have also arrived. This scenario throws up a lot of challenges; partial articles should be stored somewhere, there should be a way to correlate incoming components with existing ones, and also there should be a way to identify the completion of a message. Aggregators are there ...

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Publisher Resources

ISBN: 9781783989164