io.atlassian.util.concurrent

Class Suppliers

java.lang.Object

io.atlassian.util.concurrent.Suppliers

public final class Suppliers
extends Object

Useful Supplier implementations.

Method Summary

Modifier and Type	Method and Description
static <D,T> Supplier<T>	fromFunction(D input, Function<D,T> function) A Supplier that asks the argument function for the result using the input argument.
static <T> Supplier<T>	memoize(T source) A Supplier that always returns the supplied source.
static <T> Callable<T>	toCallable(Supplier<T> supplier) Turn a Supplier into a Callable

Methods inherited from class java.lang.Object

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

Method Detail

memoize

public static <T> Supplier<T> memoize(T source)

A Supplier that always returns the supplied source.

Type Parameters:

T - the type

Parameters:

source - the object that is always returned.

Returns:

a supplier that always returns the supplied argument

fromFunction

public static <D,T> Supplier<T> fromFunction(D input,
                                             Function<D,T> function)

A Supplier that asks the argument function for the result using the input argument.

Type Parameters:

D - the input type

T - the result type

Parameters:

input - used as the argument when calling the function.

function - asked to get the result.

Returns:

the result

toCallable

public static <T> Callable<T> toCallable(Supplier<T> supplier)

Turn a Supplier into a Callable

Parameters:

supplier - a Supplier.

Returns:

a Callable.