org.apache.hadoop.util

接口 ServicePlugin

所有超级接口:

AutoCloseable, Closeable

public interface ServicePlugin
extends Closeable

Service plug-in interface. Service plug-ins may be used to expose functionality of datanodes or namenodes using arbitrary RPC protocols. Plug-ins are instantiated by the service instance, and are notified of service life-cycle events using the methods defined by this class. Service plug-ins are started after the service instance is started, and stopped before the service instance is stopped.

方法概要

方法

限定符和类型	方法和说明
void	start(Object service) This method is invoked when the service instance has been started.
void	stop() This method is invoked when the service instance is about to be shut down.

从接口继承的方法 java.io.Closeable

close

方法详细资料

start

void start(Object service)

This method is invoked when the service instance has been started.

参数:

service - The service instance invoking this method

stop

void stop()

This method is invoked when the service instance is about to be shut down.