de.unkrig.commons.lang.protocol

Interface FunctionWhichThrows<I,O,EX extends Throwable>

Type Parameters:

I - The type of the parameter of call(Object)

O - The return type of call(Object)

EX - The exception type that call(Object) is allowed to throw; use NoException to indicate that call(Object) does not declare any checked exceptions

All Known Subinterfaces:

Function<I,O>

public interface FunctionWhichThrows<I,O,EX extends Throwable>

An entity that transforms an "input value" (which may be null) into an "output value" (which may also be null).

IMPORTANT NOTICE:

When using this type in a variable, parameter or field declaration, never write

FunctionEhichThrows<
    input-type,
    output-type,
    thrown-exception
>

, but always

FunctionEhichThrows<
    ? super input-type,
    ? extends output-type,
    ? extends thrown-exception
>

.

See Also:

call(Object), {@code TransformerWhichThrows} -- similar to this interface, but transforms only non-null values into non-null values

Method Summary

Modifier and Type	Method and Description
O	call(I argument) Calculates a value of type O from an argument of type I.

Method Detail

call

@Nullable
O call(@Nullable
                  I argument)
           throws EX extends Throwable

Calculates a value of type O from an argument of type I.

Throws:

EX extends Throwable