akka.persistence.typed.javadsl
EventHandlerBuilderByState
Companion object EventHandlerBuilderByState
final class EventHandlerBuilderByState[S <: State, State, Event] extends AnyRef
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- This member is added by an implicit conversion from EventHandlerBuilderByState[S, State, Event] toany2stringadd[EventHandlerBuilderByState[S, State, Event]] performed by method any2stringadd in scala.Predef.
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- any2stringadd
- def ->[B](y: B): (EventHandlerBuilderByState[S, State, Event], B)
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- This member is added by an implicit conversion from EventHandlerBuilderByState[S, State, Event] toArrowAssoc[EventHandlerBuilderByState[S, State, Event]] performed by method ArrowAssoc in scala.Predef.
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- def build(): EventHandler[State, Event]
Builds and returns a handler from the appended states.
Builds and returns a handler from the appended states. The returned EventHandler will throw a scala.MatchError if applied to an event that has no defined case.
- def clone(): AnyRef
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- protected[lang]
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- @throws(classOf[java.lang.CloneNotSupportedException]) @HotSpotIntrinsicCandidate() @native()
- def ensuring(cond: (EventHandlerBuilderByState[S, State, Event]) => Boolean, msg: => Any): EventHandlerBuilderByState[S, State, Event]
- Implicit
- This member is added by an implicit conversion from EventHandlerBuilderByState[S, State, Event] toEnsuring[EventHandlerBuilderByState[S, State, Event]] performed by method Ensuring in scala.Predef.
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- Ensuring
- def ensuring(cond: (EventHandlerBuilderByState[S, State, Event]) => Boolean): EventHandlerBuilderByState[S, State, Event]
- Implicit
- This member is added by an implicit conversion from EventHandlerBuilderByState[S, State, Event] toEnsuring[EventHandlerBuilderByState[S, State, Event]] performed by method Ensuring in scala.Predef.
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- Ensuring
- def ensuring(cond: Boolean, msg: => Any): EventHandlerBuilderByState[S, State, Event]
- Implicit
- This member is added by an implicit conversion from EventHandlerBuilderByState[S, State, Event] toEnsuring[EventHandlerBuilderByState[S, State, Event]] performed by method Ensuring in scala.Predef.
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- Ensuring
- def ensuring(cond: Boolean): EventHandlerBuilderByState[S, State, Event]
- Implicit
- This member is added by an implicit conversion from EventHandlerBuilderByState[S, State, Event] toEnsuring[EventHandlerBuilderByState[S, State, Event]] performed by method Ensuring in scala.Predef.
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- def onAnyEvent(handler: Function[Event, State]): EventHandler[State, Event]
Match any event.
Match any event.
Use this when then
State
is not needed in thehandler
, otherwise there is an overloaded method that pass the state in aBiFunction
.Note: event handlers are selected in the order they are added. Once a matching is found, it's selected for handling the event and no further lookup is done. Therefore you must make sure that their matching conditions don't overlap, otherwise you risk to 'shadow' part of your event handlers.
Extra care should be taken when using onAnyEvent as it will match any event. This method builds and returns the event handler since this will not let through any states to subsequent match statements.
- returns
An EventHandler from the appended states.
- def onAnyEvent(handler: BiFunction[State, Event, State]): EventHandler[State, Event]
Match any event.
Match any event.
Note: event handlers are selected in the order they are added. Once a matching is found, it's selected for handling the event and no further lookup is done. Therefore you must make sure that their matching conditions don't overlap, otherwise you risk to 'shadow' part of your event handlers.
Extra care should be taken when using onAnyEvent as it will match any event. This method builds and returns the event handler since this will not let through any states to subsequent match statements.
- returns
An EventHandler from the appended states.
- def onEvent[E <: Event](eventClass: Class[E], handler: Supplier[State]): EventHandlerBuilderByState[S, State, Event]
Match any event which is an instance of
E
or a subtype ofE
.Match any event which is an instance of
E
or a subtype ofE
.Use this when then
State
and theEvent
are not needed in thehandler
.Note: event handlers are selected in the order they are added. Once a matching is found, it's selected for handling the event and no further lookup is done. Therefore you must make sure that their matching conditions don't overlap, otherwise you risk to 'shadow' part of your event handlers.
- def onEvent[E <: Event](eventClass: Class[E], handler: Function[E, State]): EventHandlerBuilderByState[S, State, Event]
Match any event which is an instance of
E
or a subtype ofE
.Match any event which is an instance of
E
or a subtype ofE
.Use this when then
State
is not needed in thehandler
, otherwise there is an overloaded method that pass the state in aBiFunction
.Note: event handlers are selected in the order they are added. Once a matching is found, it's selected for handling the event and no further lookup is done. Therefore you must make sure that their matching conditions don't overlap, otherwise you risk to 'shadow' part of your event handlers.
- def onEvent[E <: Event](eventClass: Class[E], handler: BiFunction[S, E, State]): EventHandlerBuilderByState[S, State, Event]
Match any event which is an instance of
E
or a subtype ofE
.Match any event which is an instance of
E
or a subtype ofE
.Note: event handlers are selected in the order they are added. Once a matching is found, it's selected for handling the event and no further lookup is done. Therefore you must make sure that their matching conditions don't overlap, otherwise you risk to 'shadow' part of your event handlers.
- def orElse[S2 <: State](other: EventHandlerBuilderByState[S2, State, Event]): EventHandlerBuilderByState[S2, State, Event]
Compose this builder with another builder.
Compose this builder with another builder. The handlers in this builder will be tried first followed by the handlers in
other
. - final def synchronized[T0](arg0: => T0): T0
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- Deprecated
(Since version 9)
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from EventHandlerBuilderByState[S, State, Event] toStringFormat[EventHandlerBuilderByState[S, State, Event]] performed by method StringFormat in scala.Predef.
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- StringFormat
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- @deprecated @inline()
- Deprecated
(Since version 2.12.16) Use
formatString.format(value)
instead ofvalue.formatted(formatString)
, or use thef""
string interpolator. In Java 15 and later,formatted
resolves to the new method in String which has reversed parameters.
- def →[B](y: B): (EventHandlerBuilderByState[S, State, Event], B)
- Implicit
- This member is added by an implicit conversion from EventHandlerBuilderByState[S, State, Event] toArrowAssoc[EventHandlerBuilderByState[S, State, Event]] performed by method ArrowAssoc in scala.Predef.
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- Deprecated
(Since version 2.13.0) Use
->
instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.