Package no.digipost.util

Interface Assignment<V>

Type Parameters:

V - The type that may be assigned (or not).

All Superinterfaces:

Consumer<V>, Supplier<V>, ViewableAsOptional<V>, ViewableAsOptional.Single<V>

All Known Implementing Classes:

ChainableAssignment, OneTimeAssignment

public interface Assignment<V>
extends Supplier<V>, Consumer<V>, ViewableAsOptional.Single<V>

An assignment may or may not be assigned, the assigned value can be retrieved with Supplier.get() and will return null if unassigned, and may be assigned with set(Object) if the assignment allows (re-)assignment.

Nested Class Summary

Nested classes/interfaces inherited from interface no.digipost.util.ViewableAsOptional

ViewableAsOptional.Single<V>, ViewableAsOptional.TooManyElements

Method Summary

Modifier and Type	Method	Description
default void	accept(V value)
default <C> ChainableAssignment<V,C>	chainableWith(C chainReturnObject)	Create a ChainableAssignment from this assignment.
static <V> Assignment<V>	from(AtomicReference<V> reference)	Create a new Assignment which uses an AtomicReference to hold the assigned value.
static <V, S> Assignment<V>	from(S container, Function<? super S,V> getter, BiConsumer<? super S,? super V> setter)	Create a new Assignment, which assigns to and retrieves from an arbitrary container object.
void	set(V value)	Assign the given value.

Methods inherited from interface java.util.function.Consumer

andThen

Methods inherited from interface java.util.function.Supplier

get

Methods inherited from interface no.digipost.util.ViewableAsOptional.Single

toOptional

Method Details

from

static <V> Assignment<V> from(AtomicReference<V> reference)

Create a new Assignment which uses an AtomicReference to hold the assigned value.

Parameters:

reference - the holder of the assigned value

Returns:

the new Assignment using the given AtomicReference.

from

static <V,
S> Assignment<V> from(S container,
 Function<? super S,V> getter,
 BiConsumer<? super S,? super V> setter)

Create a new Assignment, which assigns to and retrieves from an arbitrary container object.

Parameters:

container - The holder of the assigned value.

getter - how the get the value from the container

setter - how to set the value on the container

Returns:

the get and set operations as a new Assignment.

set

void set(V value)

Assign the given value.

Parameters:

value - the value to assign.

accept

default void accept(V value)

Specified by:

accept in interface Consumer<V>

chainableWith

default <C> ChainableAssignment<V,C> chainableWith(C chainReturnObject)

Create a ChainableAssignment from this assignment.

See Also:

• ChainableAssignment