Package org.cactoos

Interface Func<X,Y>

Type Parameters:

X - Type of input

Y - Type of output

All Known Subinterfaces:

Fallback<X>

All Known Implementing Classes:

Async, Chained, CheckedFunc, Fallback.From, Fallback.None, Flattened, FuncEnvelope, FuncNoNulls, FuncOf, FuncWithFallback, IoCheckedFunc, Repeated, Retry, SolidFunc, StickyFunc, SyncFunc, Timed, UncheckedFunc

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 Func<X,Y>

Function.

If you don't want to have any checked exceptions being thrown out of your Func, you can use UncheckedFunc decorator. Also you may try IoCheckedFunc.

If you want to cache the result of the Func and make sure it doesn't calculate anything twice, you can use StickyFunc decorator.

There is no thread-safety guarantee.

Since:

0.1

See Also:

StickyFunc, UncheckedFunc, IoCheckedFunc

Method Summary

Modifier and Type	Method	Description
Y	apply(X input)	Apply it.

Method Detail

apply

Y apply(X input)
 throws Exception

Apply it.

Parameters:

input - The argument

Returns:

The result

Throws:

Exception - If fails