axon-simple
axon-simple copied to clipboard
Published
20 hours ago •
gushakov
gushakov
Simple CQRS application using Axon without Event Sourcing
Simple CQRS with Axon
This is a port of the application from axon-quick-start application intended as a quick intro to the Axon framework.
The difference is that I've tried to simplify some things.
- There is still
axon-spring-boot-starterstarter - There is no Axon server. The application is completely standalone.
- There is no Event Sourcing. All aggregates (states) are persisted as JPA entities at the end of each domain event processing.
- Since there is no Event Sourcing there is no need for an EventStorageEngine.
- Everything (aggregates, projections) is persisted into the in-memory H2 database.
The idea is to see what minimal beans need to be declared to make this scenario work.
- We still need to declare and configure an instance of
org.axonframework.commandhandling.SimpleCommandBus - We also need an instance of
org.axonframework.eventhandling.SimpleEventBus - The rest of the infrastructure is wired by the starter
Copyright disclaimer and acknowledgements
This code is based heavily on the code for the axon-quick-start exercise (and the solution).
gushakov