org.mortbay.component

Class AbstractLifeCycle

java.lang.Object

org.mortbay.component.AbstractLifeCycle

All Implemented Interfaces:

LifeCycle

Direct Known Subclasses:

BoundedThreadPool, QueuedThreadPool

public abstract class AbstractLifeCycle
extends java.lang.Object
implements LifeCycle

Basic implementation of the life cycle interface for components.

Author:

gregw

Nested Class Summary

Nested classes/interfaces inherited from interface org.mortbay.component.LifeCycle

LifeCycle.Listener

Field Summary

Fields

Modifier and Type	Field and Description
protected LifeCycle.Listener[]	_listeners

Constructor Summary

Constructors

Constructor and Description
AbstractLifeCycle()

Method Summary

Methods

Modifier and Type	Method and Description
void	addLifeCycleListener(LifeCycle.Listener listener)
protected void	doStart()
protected void	doStop()
boolean	isFailed()
boolean	isRunning()
boolean	isStarted()
boolean	isStarting()
boolean	isStopped()
boolean	isStopping()
void	removeLifeCycleListener(LifeCycle.Listener listener)
void	start() Starts the component.
void	stop() Stops the component.

Methods inherited from class java.lang.Object

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

Field Detail

_listeners

protected LifeCycle.Listener[] _listeners

Constructor Detail

AbstractLifeCycle

public AbstractLifeCycle()

Method Detail

doStart

protected void doStart()
                throws java.lang.Exception

Throws:

java.lang.Exception

doStop

protected void doStop()
               throws java.lang.Exception

Throws:

java.lang.Exception

start

public final void start()
                 throws java.lang.Exception

Description copied from interface: LifeCycle

Starts the component.

Specified by:

start in interface LifeCycle

Throws:

java.lang.Exception - If the component fails to start

See Also:

LifeCycle.isStarted(), LifeCycle.stop(), LifeCycle.isFailed()

stop

public final void stop()
                throws java.lang.Exception

Description copied from interface: LifeCycle

Stops the component. The component may wait for current activities to complete normally, but it can be interrupted.

Specified by:

stop in interface LifeCycle

Throws:

java.lang.Exception - If the component fails to stop

See Also:

LifeCycle.isStopped(), LifeCycle.start(), LifeCycle.isFailed()

isRunning

public boolean isRunning()

Specified by:

isRunning in interface LifeCycle

Returns:

true if the component is starting or has been started.

isStarted

public boolean isStarted()

Specified by:

isStarted in interface LifeCycle

Returns:

true if the component has been started.

See Also:

LifeCycle.start(), LifeCycle.isStarting()

isStarting

public boolean isStarting()

Specified by:

isStarting in interface LifeCycle

Returns:

true if the component is starting.

See Also:

LifeCycle.isStarted()

isStopping

public boolean isStopping()

Specified by:

isStopping in interface LifeCycle

Returns:

true if the component is stopping.

See Also:

LifeCycle.isStopped()

isStopped

public boolean isStopped()

Specified by:

isStopped in interface LifeCycle

Returns:

true if the component has been stopped.

See Also:

LifeCycle.stop(), LifeCycle.isStopping()

isFailed

public boolean isFailed()

Specified by:

isFailed in interface LifeCycle

Returns:

true if the component has failed to start or has failed to stop.

addLifeCycleListener

public void addLifeCycleListener(LifeCycle.Listener listener)

Specified by:

addLifeCycleListener in interface LifeCycle

removeLifeCycleListener

public void removeLifeCycleListener(LifeCycle.Listener listener)

Specified by:

removeLifeCycleListener in interface LifeCycle