DropOldAndSignal

A OverflowStrategy specifying that on reaching the maximum size, the currently buffered events should start being dropped in a FIFO order, so the oldest events from the buffer will be dropped first.

The given onOverflow function get be used for logging the event and for sending a message to the downstream consumers to inform them of dropped messages. The function can return None in which case no message is sent and thus you can use it just to log a warning.

bufferSize: specifies how many events our buffer can hold before overflowing
onOverflow: is a function that can get called on overflow with a number of messages that were dropped, a function that builds a new message that will be sent to downstream. If it returns None, then no message gets sent to downstream.

Source: OverflowStrategy.scala

Linear Supertypes

Product, Equals, Evicted[A], Synchronous[A], OverflowStrategy[A], Serializable, Serializable, AnyRef, Any

Instance Constructors

new DropOldAndSignal(bufferSize: Int, onOverflow: (Long) ⇒ Option[A])

bufferSize
specifies how many events our buffer can hold before overflowing
onOverflow
is a function that can get called on overflow with a number of messages that were dropped, a function that builds a new message that will be sent to downstream. If it returns None, then no message gets sent to downstream.

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
val bufferSize: Int

specifies how many events our buffer can hold before overflowing
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
val isEvicted: Boolean

Definition Classes
Evicted → OverflowStrategy
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
val isSynchronous: Boolean

Definition Classes
Synchronous → OverflowStrategy
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
val onOverflow: (Long) ⇒ Option[A]

is a function that can get called on overflow with a number of messages that were dropped, a function that builds a new message that will be sent to downstream.
is a function that can get called on overflow with a number of messages that were dropped, a function that builds a new message that will be sent to downstream. If it returns None, then no message gets sent to downstream.
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package OverflowStrategy

final case class DropOldAndSignal[A](bufferSize: Int, onOverflow: (Long) ⇒ Option[A]) extends Evicted[A] with Product with Serializable

Instance Constructors

new DropOldAndSignal(bufferSize: Int, onOverflow: (Long) ⇒ Option[A])

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

val bufferSize: Int

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def finalize(): Unit

final def getClass(): Class[_]

val isEvicted: Boolean

final def isInstanceOf[T0]: Boolean

val isSynchronous: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

val onOverflow: (Long) ⇒ Option[A]

final def synchronized[T0](arg0: ⇒ T0): T0

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from Product

Inherited from Equals

Inherited from Evicted[A]

Inherited from Synchronous[A]

Inherited from OverflowStrategy[A]

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped