abstract class SimplePublisher[T, S, F <: Filter] extends Publisher[T] with Parent[T]
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- @deprecated
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(Since version 0.0.14) Use NoFilterPublisher, avoid iffily supported JSON-RPC filter ops.
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- new SimplePublisher(ethJsonRpcUrl: String, blockPollDelay: Duration = 3.seconds, subscriptionUpdateDelay: Duration = 3.seconds)(implicit efactory: Factory = Exchanger.Factory.Default, scheduler: Scheduler = Scheduler.Default, executionContext: ExecutionContext = ExecutionContext.global)
Abstract Value Members
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abstract
def
acquireFilter(client: Client): Future[F]
- Attributes
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abstract
def
getChanges(client: Client, filter: F): Future[Seq[S]]
- Attributes
- protected
-
abstract
def
transformTerminate(client: Client, items: Seq[S]): Future[Transformed[T]]
This is an opportunity to transform acquired items -- to filter items that should not be published, to map items into something else etc.
This is an opportunity to transform acquired items -- to filter items that should not be published, to map items into something else etc. If the stream should terminate, excess items (thise beyond the termination point) should be trimmed.
At the same time it is a place where termination can be noticed, by inspecting acquired items. Signal termination by setting
transformed.shouldTerminateto true.A client is provided (primarily in case it is helpful for deciding termination).
In the simple case where T and S are the same type, no transformation need happen, and the stream of events is unbounded, a straightforward implementation is Future.successful( Transformed[T]( items, false ) )
See BlockHashPublisher for an example.
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def
cancelFilter(client: Client, filter: F): Future[_]
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def
subscribe(subscriber: Subscriber[_ >: T]): Unit
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- SimplePublisher → Publisher
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final
def
synchronized[T0](arg0: ⇒ T0): T0
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(Since version ) see corresponding Javadoc for more information.
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(Since version ) see corresponding Javadoc for more information.
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abstract
def
acquireFilter(client: Client): Future[F]
- Attributes
- protected
-
abstract
def
getChanges(client: Client, filter: F): Future[Seq[S]]
- Attributes
- protected
-
abstract
def
transformTerminate(client: Client, items: Seq[S]): Future[Transformed[T]]
This is an opportunity to transform acquired items -- to filter items that should not be published, to map items into something else etc.
This is an opportunity to transform acquired items -- to filter items that should not be published, to map items into something else etc. If the stream should terminate, excess items (thise beyond the termination point) should be trimmed.
At the same time it is a place where termination can be noticed, by inspecting acquired items. Signal termination by setting
transformed.shouldTerminateto true.A client is provided (primarily in case it is helpful for deciding termination).
In the simple case where T and S are the same type, no transformation need happen, and the stream of events is unbounded, a straightforward implementation is Future.successful( Transformed[T]( items, false ) )
See BlockHashPublisher for an example.
- Attributes
- protected
-
final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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final
def
==(arg0: Any): Boolean
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final
def
asInstanceOf[T0]: T0
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def
cancelFilter(client: Client, filter: F): Future[_]
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notify(): Unit
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notifyAll(): Unit
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def
subscribe(subscriber: Subscriber[_ >: T]): Unit
- Definition Classes
- SimplePublisher → Publisher
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
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def
toString(): String
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final
def
wait(arg0: Long, arg1: Int): Unit
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def
wait(arg0: Long): Unit
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finalize(): Unit
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- Deprecated
(Since version ) see corresponding Javadoc for more information.