akka.routing

SmallestMailboxRouter

Related Docs: object SmallestMailboxRouter | package routing

case class SmallestMailboxRouter(nrOfInstances: Int = 0, routees: Iterable[String] = Nil, resizer: Option[Resizer] = None, routerDispatcher: String = Dispatchers.DefaultDispatcherId, supervisorStrategy: SupervisorStrategy = Pool.defaultSupervisorStrategy) extends DeprecatedRouterConfig with PoolOverrideUnsetConfig[SmallestMailboxRouter] with Product with Serializable

A Router that tries to send to the non-suspended routee with fewest messages in mailbox. The selection is done in this order:


Please note that providing both 'nrOfInstances' and 'routees' does not make logical sense as this means that the router should both create new actors and use the 'routees' actor(s). In this case the 'nrOfInstances' will be ignored and the 'routees' will be used.
The configuration parameter trumps the constructor arguments. This means that if you provide either 'nrOfInstances' or 'routees' during instantiation they will be ignored if the router is defined in the configuration file for the actor being used.

Supervision Setup

Any routees that are created by a router will be created as the router's children. The router is therefore also the children's supervisor.

The supervision strategy of the router actor can be configured with #withSupervisorStrategy. If no strategy is provided, routers default to a strategy of “always escalate”. This means that errors are passed up to the router's supervisor for handling.

The router's supervisor will treat the error as an error with the router itself. Therefore a directive to stop or restart will cause the router itself to stop or restart. The router, in turn, will cause its children to stop and restart.

routees

string representation of the actor paths of the routees that will be looked up using actorFor in akka.actor.ActorRefProvider

Annotations
@SerialVersionUID() @deprecated
Deprecated

(Since version 2.3) Use SmallestMailboxPool

Source
DeprecatedRouting.scala
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  1. SmallestMailboxRouter
  2. Product
  3. Equals
  4. PoolOverrideUnsetConfig
  5. DeprecatedRouterConfig
  6. Pool
  7. Group
  8. RouterConfig
  9. Serializable
  10. Serializable
  11. AnyRef
  12. Any
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  2. by StringFormat
  3. by Ensuring
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Instance Constructors

  1. new SmallestMailboxRouter(resizer: Resizer)

    Java API: Constructor that sets the resizer to be used.

  2. new SmallestMailboxRouter(routeePaths: Iterable[String])

    Java API: Constructor that sets the routees to be used.

    Java API: Constructor that sets the routees to be used.

    routeePaths

    string representation of the actor paths of the routees that will be looked up using actorFor in akka.actor.ActorRefProvider

  3. new SmallestMailboxRouter(nr: Int)

    Java API: Constructor that sets nrOfInstances to be created.

  4. new SmallestMailboxRouter(nrOfInstances: Int = 0, routees: Iterable[String] = Nil, resizer: Option[Resizer] = None, routerDispatcher: String = Dispatchers.DefaultDispatcherId, supervisorStrategy: SupervisorStrategy = Pool.defaultSupervisorStrategy)

    routees

    string representation of the actor paths of the routees that will be looked up using actorFor in akka.actor.ActorRefProvider

Value Members

  1. final def !=(arg0: Any): Boolean

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

    Definition Classes
    AnyRef → Any
  3. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from SmallestMailboxRouter to any2stringadd[SmallestMailboxRouter] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (SmallestMailboxRouter, B)

    Implicit information
    This member is added by an implicit conversion from SmallestMailboxRouter to ArrowAssoc[SmallestMailboxRouter] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean

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

    Definition Classes
    Any
  7. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  8. def createRouter(system: ActorSystem): Router

    Create the actual router, responsible for routing messages to routees.

    Create the actual router, responsible for routing messages to routees.

    system

    the ActorSystem this router belongs to

    Definition Classes
    SmallestMailboxRouterRouterConfig
  9. def ensuring(cond: (SmallestMailboxRouter) ⇒ Boolean, msg: ⇒ Any): SmallestMailboxRouter

    Implicit information
    This member is added by an implicit conversion from SmallestMailboxRouter to Ensuring[SmallestMailboxRouter] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: (SmallestMailboxRouter) ⇒ Boolean): SmallestMailboxRouter

    Implicit information
    This member is added by an implicit conversion from SmallestMailboxRouter to Ensuring[SmallestMailboxRouter] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean, msg: ⇒ Any): SmallestMailboxRouter

    Implicit information
    This member is added by an implicit conversion from SmallestMailboxRouter to Ensuring[SmallestMailboxRouter] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def ensuring(cond: Boolean): SmallestMailboxRouter

    Implicit information
    This member is added by an implicit conversion from SmallestMailboxRouter to Ensuring[SmallestMailboxRouter] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  14. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  15. def formatted(fmtstr: String): String

    Implicit information
    This member is added by an implicit conversion from SmallestMailboxRouter to StringFormat[SmallestMailboxRouter] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  16. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  17. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  18. def isManagementMessage(msg: Any): Boolean

    Is the message handled by the router head actor or the #routingLogicController actor.

    Is the message handled by the router head actor or the #routingLogicController actor.

    Definition Classes
    RouterConfig
  19. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  20. final def notify(): Unit

    Definition Classes
    AnyRef
  21. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  22. val nrOfInstances: Int

    Initial number of routee instances

    Initial number of routee instances

    Definition Classes
    SmallestMailboxRouterPool
  23. final def overrideUnsetConfig(other: RouterConfig): RouterConfig

    Definition Classes
    PoolOverrideUnsetConfig
  24. def paths: Iterable[String]

    Definition Classes
    SmallestMailboxRouterGroup
  25. def props(routeeProps: Props): Props

    akka.actor.Props for a pool router based on the settings defined by this instance and the supplied akka.actor.Props for the routees created by the router.

    akka.actor.Props for a pool router based on the settings defined by this instance and the supplied akka.actor.Props for the routees created by the router.

    Definition Classes
    Pool
  26. def props(): Props

    akka.actor.Props for a group router based on the settings defined by this instance.

    akka.actor.Props for a group router based on the settings defined by this instance.

    Definition Classes
    Group
  27. val resizer: Option[Resizer]

    Pool with dynamically resizable number of routees return the akka.routing.Resizer to use.

    Pool with dynamically resizable number of routees return the akka.routing.Resizer to use. The resizer is invoked once when the router is created, before any messages can be sent to it. Resize is also triggered when messages are sent to the routees, and the resizer is invoked asynchronously, i.e. not necessarily before the message has been sent.

    Definition Classes
    SmallestMailboxRouterPool
  28. val routees: Iterable[String]

    string representation of the actor paths of the routees that will be looked up using actorFor in akka.actor.ActorRefProvider

  29. val routerDispatcher: String

    Dispatcher ID to use for running the “head” actor, which handles supervision, death watch and router management messages

    Dispatcher ID to use for running the “head” actor, which handles supervision, death watch and router management messages

    Definition Classes
    SmallestMailboxRouterRouterConfig
  30. def routingLogicController(routingLogic: RoutingLogic): Option[Props]

    Possibility to define an actor for controlling the routing logic from external stimuli (e.g.

    Possibility to define an actor for controlling the routing logic from external stimuli (e.g. monitoring metrics). This actor will be a child of the router "head" actor. Managment messages not handled by the "head" actor are delegated to this controller actor.

    Definition Classes
    RouterConfig
  31. def stopRouterWhenAllRouteesRemoved: Boolean

    Definition Classes
    PoolRouterConfig
  32. val supervisorStrategy: SupervisorStrategy

    SupervisorStrategy for the head actor, i.e.

    SupervisorStrategy for the head actor, i.e. for supervising the routees of the pool.

    Definition Classes
    SmallestMailboxRouterPool
  33. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  34. def usePoolDispatcher: Boolean

    Use a dedicated dispatcher for the routees of the pool.

    Use a dedicated dispatcher for the routees of the pool. The dispatcher is defined in 'pool-dispatcher' configuration property in the deployment section of the router.

    Definition Classes
    Pool
  35. def verifyConfig(path: ActorPath): Unit

    Check that everything is there which is needed.

    Check that everything is there which is needed. Called in constructor of RoutedActorRef to fail early.

    Definition Classes
    RouterConfig
  36. final def wait(): Unit

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

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  39. def withDispatcher(dispatcherId: String): SmallestMailboxRouter

    Java API for setting routerDispatcher

  40. def withFallback(other: RouterConfig): RouterConfig

    Uses the resizer and/or the supervisor strategy of the given Routerconfig if this RouterConfig doesn't have one, i.e.

    Uses the resizer and/or the supervisor strategy of the given Routerconfig if this RouterConfig doesn't have one, i.e. the resizer defined in code is used if resizer was not defined in config.

    Definition Classes
    SmallestMailboxRouterRouterConfig
  41. def withResizer(resizer: Resizer): SmallestMailboxRouter

    Java API for setting the resizer to be used.

    Java API for setting the resizer to be used.

    Definition Classes
    SmallestMailboxRouter → PoolOverrideUnsetConfig
  42. def withSupervisorStrategy(strategy: SupervisorStrategy): SmallestMailboxRouter

    Java API for setting the supervisor strategy to be used for the “head” Router actor.

    Java API for setting the supervisor strategy to be used for the “head” Router actor.

    Definition Classes
    SmallestMailboxRouter → PoolOverrideUnsetConfig
  43. def [B](y: B): (SmallestMailboxRouter, B)

    Implicit information
    This member is added by an implicit conversion from SmallestMailboxRouter to ArrowAssoc[SmallestMailboxRouter] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from Product

Inherited from Equals

Inherited from PoolOverrideUnsetConfig[SmallestMailboxRouter]

Inherited from DeprecatedRouterConfig

Inherited from Pool

Inherited from Group

Inherited from RouterConfig

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from SmallestMailboxRouter to any2stringadd[SmallestMailboxRouter]

Inherited by implicit conversion StringFormat from SmallestMailboxRouter to StringFormat[SmallestMailboxRouter]

Inherited by implicit conversion Ensuring from SmallestMailboxRouter to Ensuring[SmallestMailboxRouter]

Inherited by implicit conversion ArrowAssoc from SmallestMailboxRouter to ArrowAssoc[SmallestMailboxRouter]

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