Package org.apache.heron.streamlet
Interface SerializablePredicate<T>
-
- All Superinterfaces:
Predicate<T>
,Serializable
public interface SerializablePredicate<T> extends Predicate<T>, Serializable
All user supplied transformation functions have to be serializable. Thus all Streamlet transformation definitions take Serializable Functions as their input. We simply decorate java.util. function definitions with a Serializable tag to ensure that any supplied lambda functions automatically become serializable.