Package org.n52.janmayen.function

Class Suppliers

java.lang.Object

org.n52.janmayen.function.Suppliers

public final class Suppliers
extends Object

Utility functions for Supplier.

Method Summary

Modifier and Type	Method	Description
static <U,V> Function<U,V>	asFunction(Supplier<V> supplier)	Creates a function ignoring it's parameter and just returning the supplier's value.
static <T> Supplier<T>	constant(T t)	Returns a constant supplier.
static <U,V> Supplier<V>	mapping(Function<? super U,? extends V> mapper, Supplier<U> supplier)	Maps the output of an supplier using a function.

Methods inherited from class java.lang.Object

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

Method Detail

constant

public static <T> Supplier<T> constant(T t)

Returns a constant supplier.

Type Parameters:

T - the type of the supplied value

Parameters:

t - the constant

Returns:

the constant supplier

mapping

public static <U,V> Supplier<V> mapping(Function<? super U,? extends V> mapper,
                                              Supplier<U> supplier)

Maps the output of an supplier using a function.

Type Parameters:

U - The original suppliers return type

V - The new suppliers return type

Parameters:

supplier - the original supplier

mapper - the mapper

Returns:

the new supplier

asFunction

public static <U,V> Function<U,V> asFunction(Supplier<V> supplier)

Creates a function ignoring it's parameter and just returning the supplier's value.

Type Parameters:

U - the parameter type

V - the supplier's return type

Parameters:

supplier - the supplier

Returns:

the function