com.sleepycat.je.rep.elections

Class Utils.WithFutureExceptionHandler<T extends TextProtocol.MessageExchange>

java.lang.Object

com.sleepycat.je.rep.elections.Utils.WithFutureExceptionHandler<T>

Enclosing class:

Utils

public abstract static class Utils.WithFutureExceptionHandler<T extends TextProtocol.MessageExchange>
extends Object

Constructor Summary

Constructors

Constructor and Description
WithFutureExceptionHandler(Utils.FutureTrackingCompService<T> compService, long completionTimeout, TimeUnit unit, Logger logger, RepImpl envImpl, Formatter formatter) Generate a handler for processing future results.

Method Summary

Modifier and Type	Method and Description
void	execute() Processes futures in the order in which they complete, as determined by the completion service, to minimize unnecessary waiting.
protected abstract boolean	isShutdown() Determines whether the initiating operation was shutdown.
protected abstract void	processResponse(T result) The method represents the result processing code being wrapped upon a success response message being received.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WithFutureExceptionHandler

public WithFutureExceptionHandler(Utils.FutureTrackingCompService<T> compService,
                                  long completionTimeout,
                                  TimeUnit unit,
                                  Logger logger,
                                  RepImpl envImpl,
                                  Formatter formatter)

Generate a handler for processing future results.

Parameters:

compService - the CompletionService representing the futures

completionTimeout - the timeout indicating how long to wait for all the results. If running the tasks involves I/O, especially network I/O, the timeout should be sufficient to ensure that it allows for the associated latency. The timeout assumes that all the tasks are run in parallel, so it represents the max estimated task completion time associated with the tasks in the set.

unit - the units associated with the above timeout

Method Detail

processResponse

protected abstract void processResponse(T result)

The method represents the result processing code being wrapped upon a success response message being received.

Parameters:

result - the non null result, with a non null response message

isShutdown

protected abstract boolean isShutdown()

Determines whether the initiating operation was shutdown.

Returns:

true if the futures should not be processed but should be cancelled instead.

execute

public final void execute()

Processes futures in the order in which they complete, as determined by the completion service, to minimize unnecessary waiting.