Used for building a partial function for Actor.supervisorStrategy(). * Inside an actor you can use it like this with Java 8 to define your supervisorStrategy.

Example:

@Override
private static SupervisorStrategy strategy =
  new OneForOneStrategy(10, Duration.ofMinutes(1), DeciderBuilder.
    match(ArithmeticException.class, e -> resume()).
    match(NullPointerException.class, e -> restart()).
    match(IllegalArgumentException.class, e -> stop()).
    matchAny(o -> escalate()).build());

@Override
public SupervisorStrategy supervisorStrategy() {
  return strategy;
}