Learning Akka (Video 12)

This video tutorial explores how to change actor behavior at runtime using the 'become' and 'unbecome' methods in Akka. It introduces the concept of stash messages to manage message handling when an actor's current behavior cannot process them. The tutorial implements a user storage actor to demonstrate database operations, including connecting, disconnecting, and performing CRUD operations. It explains how to manage actor states and transitions between connected and disconnected states using the 'context.become' function. The video also addresses handling messages in different states and fixing issues using the stash trait.

What are the two states of the user storage actor?

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How does the actor change its behavior when it connects to the database?

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What happens if a create message is sent before a connect message?

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What is the purpose of the stash trait in the context of the actor?

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Describe the process of handling messages in the disconnected state.

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