com.annimon.stream.function

Class Function.Util

java.lang.Object

com.annimon.stream.function.Function.Util

Enclosing interface:

Function<T,R>

public static class Function.Util
extends Object

Method Summary

Modifier and Type	Method and Description
static <T,R,V> Function<T,V>	andThen(Function<? super T,? extends R> f1, Function<? super R,? extends V> f2) Compose Function calls.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

andThen

public static <T,R,V> Function<T,V> andThen(Function<? super T,? extends R> f1,
                                            Function<? super R,? extends V> f2)

Compose Function calls.

f2.apply(f1.apply(t))

Type Parameters:

T - the type of the input argument of first function

R - the type of the result of f1 and input argument of f2

V - the type of the result of composed function f2

Parameters:

f1 - the Function which is called first

f2 - the function for transform Function f1 result to the type V

Returns:

the result of composed function

Throws:

NullPointerException - if f1 or f2 or result of Function f1 is null