Package io.dialob.session.engine.session.command

Interface Trigger<T>

All Superinterfaces:

Serializable

All Known Subinterfaces:

DynamicTrigger<T>, StaticTrigger<T>

All Known Implementing Classes:

ImmutableDynamicTrigger, ImmutableStaticTrigger

@Enclosing
public interface Trigger<T>
extends Serializable

Method Summary

Modifier and Type	Method	Description
default Stream<Event>	apply(T itemState, T updateState)	Return trigger action when trigger condition matches
default Stream<Event>	createEvent(T itemState, T updateState)
List<Event>	getAllEvents()
BiPredicate<T,T>	getWhen()

Method Details

getWhen

@Parameter
BiPredicate<T,T> getWhen()

getAllEvents

List<Event> getAllEvents()

apply

@NonNull
default Stream<Event> apply(@NonNull
 T itemState,
 T updateState)

Return trigger action when trigger condition matches

Parameters:

itemState - item's original state

updateState - item's updated state

Returns:

triggered event, when item state change matches

createEvent

default Stream<Event> createEvent(T itemState,
 T updateState)