Package akka.javasdk.keyvalueentity

Interface KeyValueEntity.Effect<T>

Type Parameters:
T - The type of the message that must be returned by this call
All Known Subinterfaces:
KeyValueEntity.ReadOnlyEffect<T>
Enclosing class:
KeyValueEntity<S>
public static interface KeyValueEntity.Effect<T>
An Effect describes the actions that the Akka runtime should perform after a command handler completes. Effects are declarative instructions that tell the runtime how to update state, send replies, or handle errors.

Key Value Entity effects can:

  • Update the entity state and send a reply to the caller
  • Reply directly to the caller without state changes
  • Return an error message to reject the command
  • Delete the entity from storage

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Interface
    Description
    static interface 
    KeyValueEntity.Effect.Builder<S>
    Builder for constructing effects that describe the actions to be performed after command processing.
    static interface 
    KeyValueEntity.Effect.OnSuccessBuilder<S>
    Builder for chaining a reply after a successful state operation like updateState or deleteEntity.