February 2018
Intermediate to advanced
552 pages
13h 46m
English
Content preview from Scala Reactive Programming
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How Akka Persistence implements CQRS/ES
Akka Persistence supports the CQRS/ES pattern very well. The main goal of Akka Persistence is to support event stream processing.
As shown in the following diagram, we use two different objects—one for Read and another for Write operations. If our system is small, not complex, then we can use a single data store for both Read and Write operations. If our system is too big and needs to support complex architecture, then it is recommended that we use two separate data stores—one for Read and another for Write operations:
In Akka Persistence terminology, a data store is known as a journal. We can use any ...
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