Package com.google.common.util.concurrent

Class AbstractScheduledService.ServiceDelegate

java.lang.Object

com.google.common.util.concurrent.AbstractService

com.google.common.util.concurrent.AbstractScheduledService.ServiceDelegate

All Implemented Interfaces:

Service

Enclosing class:

AbstractScheduledService

private final class AbstractScheduledService.ServiceDelegate
extends AbstractService

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) class	AbstractScheduledService.ServiceDelegate.Task

Nested classes/interfaces inherited from interface com.google.common.util.concurrent.Service

Service.Listener, Service.State

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.concurrent.ScheduledExecutorService	executorService
private java.util.concurrent.locks.ReentrantLock	lock
private java.util.concurrent.Future<?>	runningTask
private java.lang.Runnable	task

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ServiceDelegate()

Method Summary

Modifier and Type	Method	Description
protected void	doStart()	This method is called by AbstractService.startAsync() to initiate service startup.
protected void	doStop()	This method should be used to initiate service shutdown.
java.lang.String	toString()

Methods inherited from class com.google.common.util.concurrent.AbstractService

addListener, awaitRunning, awaitRunning, awaitTerminated, awaitTerminated, doCancelStart, failureCause, isRunning, notifyFailed, notifyStarted, notifyStopped, startAsync, state, stopAsync

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.util.concurrent.Service

awaitRunning, awaitTerminated

Field Detail

runningTask

private volatile java.util.concurrent.Future<?> runningTask

executorService

private volatile java.util.concurrent.ScheduledExecutorService executorService

lock

private final java.util.concurrent.locks.ReentrantLock lock

task

private final java.lang.Runnable task

Constructor Detail

ServiceDelegate

private ServiceDelegate()

Method Detail

doStart

protected final void doStart()

Description copied from class: AbstractService

This method is called by AbstractService.startAsync() to initiate service startup. The invocation of this method should cause a call to AbstractService.notifyStarted(), either during this method's run, or after it has returned. If startup fails, the invocation should cause a call to AbstractService.notifyFailed(Throwable) instead.

This method should return promptly; prefer to do work on a different thread where it is convenient. It is invoked exactly once on service startup, even when AbstractService.startAsync() is called multiple times.

Specified by:

doStart in class AbstractService

doStop

protected final void doStop()

Description copied from class: AbstractService

This method should be used to initiate service shutdown. The invocation of this method should cause a call to AbstractService.notifyStopped(), either during this method's run, or after it has returned. If shutdown fails, the invocation should cause a call to AbstractService.notifyFailed(Throwable) instead.

This method should return promptly; prefer to do work on a different thread where it is convenient. It is invoked exactly once on service shutdown, even when AbstractService.stopAsync() is called multiple times.

If AbstractService.stopAsync() is called on a Service.State.STARTING service, this method is not invoked immediately. Instead, it will be deferred until after the service is Service.State.RUNNING. Services that need to cancel startup work can override {#link #doCancelStart}.

Specified by:

doStop in class AbstractService

toString

public java.lang.String toString()

Overrides:

toString in class AbstractService