Learning Akka (Video 17)

This video tutorial covers the implementation of a persistent FSM actor for managing account states. It begins with an introduction to FSM and the account actor, followed by defining states and data. The tutorial then explains domain events and commands, and proceeds to implement the persistent FSM actor by overriding necessary methods. Finally, it defines state handlers and tests the actor, demonstrating its functionality and event replay from the journal.

What are the two states defined for the account actor?

Describe the purpose of the domain events in the context of the persistent FSM.

What is the significance of the persistence ID in a persistent actor?

Explain how the apply event method functions in the persistent FSM.

How does the actor handle a rejected transaction?

What happens when an operation with credit is received in the empty state?

What is the role of the app object in the implementation of the account actor?