Class IdOptional

java.lang.Object

com.io7m.idstore.model.IdOptional

public final class IdOptional
extends Object

Extra functions for Optional.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	IdOptional.IdPartialFunctionType<A, B, E extends Exception>	The type of partial functions.

Method Summary

Modifier and Type	Method	Description
static <A, B, E extends Exception> Optional<B>	flatMapPartial(Optional<A> o, IdOptional.IdPartialFunctionType<A, Optional<B>, E> f)	See Optional.flatMap(Function).
static <A, B, E extends Exception> Optional<B>	mapPartial(Optional<A> o, IdOptional.IdPartialFunctionType<A,B,E> f)	See Optional.map(Function).

Methods inherited from class Object

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

Method Details

mapPartial

public static <A, B, E extends Exception>
Optional<B> mapPartial(Optional<A> o,
 IdOptional.IdPartialFunctionType<A,B,E> f)
                throws E

See Optional.map(Function).

Type Parameters:

A - The type of source values

B - The type of return values

E - The type of exceptions raised

Parameters:

o - The optional

f - The function

Returns:

The value of f

Throws:

E - On errors

flatMapPartial

public static <A, B, E extends Exception>
Optional<B> flatMapPartial(Optional<A> o,
 IdOptional.IdPartialFunctionType<A, Optional<B>, E> f)
                    throws E

See Optional.flatMap(Function).

Type Parameters:

A - The type of source values

B - The type of return values

E - The type of exceptions raised

Parameters:

o - The optional

f - The function

Returns:

The value of f

Throws:

E - On errors