akka.japi.pf.DeciderBuilder Maven / Gradle / Ivy
/**
* Copyright (C) 2009-2014 Typesafe Inc.
*/
package akka.japi.pf;
import static akka.actor.SupervisorStrategy.Directive;
/**
* Used for building a partial function for {@link akka.actor.Actor#supervisorStrategy() 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.create("1 minute"), 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;
* }
*
*
* This is an EXPERIMENTAL feature and is subject to change until it has received more real world testing.
*/
public class DeciderBuilder {
private DeciderBuilder() {
}
/**
* Return a new {@link PFBuilder} with a case statement added.
*
* @param type a type to match the argument against
* @param apply an action to apply to the argument if the type matches
* @return a builder with the case statement added
*/
public static PFBuilder match(final Class type, FI.Apply apply) {
return Match.match(type, apply);
}
/**
* Return a new {@link PFBuilder} with a case statement added.
*
* @param type a type to match the argument against
* @param predicate a predicate that will be evaluated on the argument if the type matches
* @param apply an action to apply to the argument if the type matches and the predicate returns true
* @return a builder with the case statement added
*/
public static PFBuilder match(final Class type,
FI.TypedPredicate
predicate,
FI.Apply apply) {
return Match.match(type, predicate, apply);
}
/**
* Return a new {@link PFBuilder} with a case statement added.
*
* @param apply an action to apply to the argument
* @return a builder with the case statement added
*/
public static PFBuilder matchAny(FI.Apply apply) {
return Match.matchAny(apply);
}
}