react

Class Slot<T>

java.lang.Object

react.Slot<T>

All Implemented Interfaces:

Reactor.RListener, SignalView.Listener<T>, ValueView.Listener<T>

Direct Known Subclasses:

UnitSlot

public abstract class Slot<T>
extends Object
implements ValueView.Listener<T>, SignalView.Listener<T>

Reacts to signal emissions.

Constructor Summary

Constructors

Constructor and Description
Slot()

Method Summary

Modifier and Type	Method and Description
<S extends T> Slot<S>	andThen(Slot<? super S> after) Returns a new slot that invokes this slot and then evokes after.
<S> Slot<S>	compose(Function<S,T> f) Returns a slot that maps values via f and then passes them to this slot.
<S extends T> Slot<S>	filtered(Function<? super S,Boolean> pred) Returns a slot that is only notified when the signal to which this slot is connected emits a value which causes pred to return true.
void	onChange(T value, T oldValue) Allows a slot to be used as a ValueView.Listener by passing just the new value through to SignalView.Listener.onEmit(T).

Methods inherited from class java.lang.Object

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

Methods inherited from interface react.SignalView.Listener

onEmit

Constructor Detail

Slot

public Slot()

Method Detail

compose

public <S> Slot<S> compose(Function<S,T> f)

Returns a slot that maps values via f and then passes them to this slot. This is essentially function composition in that slot.compose(f) means slot(f(value))) where this slot is treated as a side effecting void function.

filtered

public <S extends T> Slot<S> filtered(Function<? super S,Boolean> pred)

Returns a slot that is only notified when the signal to which this slot is connected emits a value which causes pred to return true.

andThen

public <S extends T> Slot<S> andThen(Slot<? super S> after)

Returns a new slot that invokes this slot and then evokes after.

onChange

public final void onChange(T value,
                           T oldValue)

Allows a slot to be used as a ValueView.Listener by passing just the new value through to SignalView.Listener.onEmit(T).

Specified by:

onChange in interface ValueView.Listener<T>