org.apache.hadoop.service

Class LoggingStateChangeListener

java.lang.Object

org.apache.hadoop.service.LoggingStateChangeListener

All Implemented Interfaces:

ServiceStateChangeListener

@InterfaceAudience.Public
@InterfaceStability.Evolving
public class LoggingStateChangeListener
extends Object
implements ServiceStateChangeListener

This is a state change listener that logs events at INFO level

Constructor Summary

Constructors

Constructor and Description
LoggingStateChangeListener() Log events to the static log for this class
LoggingStateChangeListener(org.apache.commons.logging.Log log) Log events to the given log

Method Summary

Methods

Modifier and Type	Method and Description
void	stateChanged(Service service) Callback for a state change event: log it

Methods inherited from class java.lang.Object

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

Constructor Detail

LoggingStateChangeListener

public LoggingStateChangeListener(org.apache.commons.logging.Log log)

Log events to the given log

Parameters:

log - destination for events

LoggingStateChangeListener

public LoggingStateChangeListener()

Log events to the static log for this class

Method Detail

stateChanged

public void stateChanged(Service service)

Callback for a state change event: log it

Specified by:

stateChanged in interface ServiceStateChangeListener

Parameters:

service - the service that has changed.