|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object akka.routing.ScatterGatherFirstCompletedRouter
public class ScatterGatherFirstCompletedRouter
Simple router that broadcasts the message to all routees, and replies with the first response.
You have to defin the 'within: Duration' parameter (f.e: within = 10 seconds).
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.
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(akka.actor.SupervisorStrategy)
. 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.
Constructor Summary | |
---|---|
ScatterGatherFirstCompletedRouter(int nr,
scala.concurrent.duration.FiniteDuration w)
Java API: Constructor that sets nrOfInstances to be created. |
|
ScatterGatherFirstCompletedRouter(int nrOfInstances,
scala.collection.immutable.Iterable<java.lang.String> routees,
scala.concurrent.duration.FiniteDuration within,
scala.Option<Resizer> resizer,
java.lang.String routerDispatcher,
SupervisorStrategy supervisorStrategy)
|
|
ScatterGatherFirstCompletedRouter(java.lang.Iterable<java.lang.String> routeePaths,
scala.concurrent.duration.FiniteDuration w)
Java API: Constructor that sets the routees to be used. |
|
ScatterGatherFirstCompletedRouter(Resizer resizer,
scala.concurrent.duration.FiniteDuration w)
Java API: Constructor that sets the resizer to be used. |
Method Summary | |
---|---|
static ScatterGatherFirstCompletedRouter |
apply(scala.collection.immutable.Iterable<ActorRef> routees,
scala.concurrent.duration.FiniteDuration within)
Creates a new ScatterGatherFirstCompletedRouter, routing to the specified routees, timing out after the specified Duration |
static ScatterGatherFirstCompletedRouter |
create(java.lang.Iterable<ActorRef> routees,
scala.concurrent.duration.FiniteDuration within)
|
int |
nrOfInstances()
|
RouterConfig |
overrideUnsetConfig(RouterConfig other)
|
scala.Option<Resizer> |
resizer()
Routers with dynamically resizable number of routees return the Resizer
to use. |
scala.collection.immutable.Iterable<java.lang.String> |
routees()
|
java.lang.String |
routerDispatcher()
Dispatcher ID to use for running the “head” actor, i.e. |
SupervisorStrategy |
supervisorStrategy()
SupervisorStrategy for the created Router actor. |
ScatterGatherFirstCompletedRouter |
withDispatcher(java.lang.String dispatcherId)
Java API for setting routerDispatcher |
RouterConfig |
withFallback(RouterConfig other)
Uses the resizer and/or the supervisor strategy of the given Routerconfig if this RouterConfig doesn't have one, i.e. |
scala.concurrent.duration.FiniteDuration |
within()
|
ScatterGatherFirstCompletedRouter |
withResizer(Resizer resizer)
Java API for setting the resizer to be used. |
ScatterGatherFirstCompletedRouter |
withSupervisorStrategy(SupervisorStrategy strategy)
Java API for setting the supervisor strategy to be used for the “head” Router actor. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface akka.routing.ScatterGatherFirstCompletedLike |
---|
createRoute |
Methods inherited from interface akka.routing.RouterConfig |
---|
createActor, createRoute, createRouteeProvider, stopRouterWhenAllRouteesRemoved, toAll, verifyConfig |
Methods inherited from interface scala.Product |
---|
productArity, productElement, productIterator, productPrefix |
Methods inherited from interface scala.Equals |
---|
canEqual, equals |
Constructor Detail |
---|
public ScatterGatherFirstCompletedRouter(int nrOfInstances, scala.collection.immutable.Iterable<java.lang.String> routees, scala.concurrent.duration.FiniteDuration within, scala.Option<Resizer> resizer, java.lang.String routerDispatcher, SupervisorStrategy supervisorStrategy)
public ScatterGatherFirstCompletedRouter(int nr, scala.concurrent.duration.FiniteDuration w)
public ScatterGatherFirstCompletedRouter(java.lang.Iterable<java.lang.String> routeePaths, scala.concurrent.duration.FiniteDuration w)
routeePaths
- string representation of the actor paths of the routees that will be looked up
using actorFor
in ActorRefProvider
public ScatterGatherFirstCompletedRouter(Resizer resizer, scala.concurrent.duration.FiniteDuration w)
Method Detail |
---|
public static ScatterGatherFirstCompletedRouter apply(scala.collection.immutable.Iterable<ActorRef> routees, scala.concurrent.duration.FiniteDuration within)
public static ScatterGatherFirstCompletedRouter create(java.lang.Iterable<ActorRef> routees, scala.concurrent.duration.FiniteDuration within)
public int nrOfInstances()
nrOfInstances
in interface ScatterGatherFirstCompletedLike
public scala.collection.immutable.Iterable<java.lang.String> routees()
routees
in interface ScatterGatherFirstCompletedLike
public scala.concurrent.duration.FiniteDuration within()
within
in interface ScatterGatherFirstCompletedLike
public scala.Option<Resizer> resizer()
RouterConfig
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.
resizer
in interface RouterConfig
public java.lang.String routerDispatcher()
RouterConfig
Router
.
routerDispatcher
in interface RouterConfig
public SupervisorStrategy supervisorStrategy()
RouterConfig
supervisorStrategy
in interface RouterConfig
public ScatterGatherFirstCompletedRouter withDispatcher(java.lang.String dispatcherId)
public ScatterGatherFirstCompletedRouter withSupervisorStrategy(SupervisorStrategy strategy)
public ScatterGatherFirstCompletedRouter withResizer(Resizer resizer)
public RouterConfig withFallback(RouterConfig other)
withFallback
in interface RouterConfig
public RouterConfig overrideUnsetConfig(RouterConfig other)
|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |