org.whaka.util.function

Interface Function4<A,B,C,D,R>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface Function4<A,B,C,D,R>

Equal to BiFunction but with 4 arguments.

See Also:

toFunction(Function4), toBiFunction(Function4)

Method Summary

Modifier and Type	Method and Description
default <V> Function4<A,B,C,D,V>	andThen(java.util.function.Function<? super R,? extends V> then)
R	apply(A a, B b, C c, D d)
static <A,B,C,D,R> java.util.function.BiFunction<A,Tuple3<B,C,D>,R>	toBiFunction(Function4<A,B,C,D,R> delegate) Convert specified function to the BiFunction were all arguments except the thirst one are represented as a single Tuple3 instance.
static <A,B,C,D,R> java.util.function.Function<Tuple4<A,B,C,D>,R>	toFunction(Function4<A,B,C,D,R> delegate) Convert specified function to the Function were all arguments are represented as a single Tuple4 instance.

Method Detail

apply

R apply(A a,
        B b,
        C c,
        D d)

toFunction

static <A,B,C,D,R> java.util.function.Function<Tuple4<A,B,C,D>,R> toFunction(Function4<A,B,C,D,R> delegate)

Convert specified function to the Function were all arguments are represented as a single Tuple4 instance.

toBiFunction

static <A,B,C,D,R> java.util.function.BiFunction<A,Tuple3<B,C,D>,R> toBiFunction(Function4<A,B,C,D,R> delegate)

Convert specified function to the BiFunction were all arguments except the thirst one are represented as a single Tuple3 instance.

andThen

default <V> Function4<A,B,C,D,V> andThen(java.util.function.Function<? super R,? extends V> then)