How to use

org.kie.dmn.feel.util.Either

constructor

public static <L,R> Either<L,R> ofRight(R value) {
  return new Either<>(Optional.empty(), Optional.ofNullable(value));
}

public static <L,R> Either<L,R> ofLeft(L value) {
  return new Either<>(Optional.of(value), Optional.empty());
}