Package org.apache.flink.runtime.operators.coordination
package org.apache.flink.runtime.operators.coordination
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ClassDescriptionAn
OperatorEventsent from a subtask to itsOperatorCoordinatorto signal that the checkpoint of an individual task is completed.A util class to help with a clean component shutdown.Root interface for all requests from the client to aOperatorCoordinatorwhich requests for aCoordinationResponse.Client interface which sends out aCoordinationRequestand expects for aCoordinationResponsefrom aOperatorCoordinator.Coordinator interface which can handleCoordinationRequests and response withCoordinationResponses to the client or operator.Root interface for all responses from aOperatorCoordinatorto the client which is the response for aCoordinationRequest.CoordinatorStorecan be used for sharing some information amongOperatorCoordinatorinstances.Basic implementation ofCoordinatorStore.A coordinator for runtime operators.The context gives the OperatorCoordinator access to contextual information and provides a gateway to interact with other components, such as sending operator events.The provider creates an OperatorCoordinator and takes aOperatorCoordinator.Contextto pass to the OperatorCoordinator.TheSubtaskGatewayis the way to interact with a specific parallel instance of the Operator (an Operator subtask), like sending events to the operator.TheOperatorCoordinatorHolderholds theOperatorCoordinatorand manages all its interactions with the remaining components.Root interface for all events sent betweenOperatorCoordinatorand anOperatorEventHandler.The dispatcher through which Operators receiveOperatorEvents and through which they can send OperatorEvents back to theOperatorCoordinator.The gateway through which an Operator can send anOperatorEventto theOperatorCoordinatoron the JobManager side.Interface for handlers of operator events on the operator side.An interface to access basic properties of an operator in the context of its coordinator.A class that will recreate a newOperatorCoordinatorinstance when reset to checkpoint.The provider for a private RecreateOnResetOperatorCoordinator.An exception indicating that a target task is not running.