org.mortbay.component
Interface LifeCycle

All Known Subinterfaces:

Connector, Handler, HandlerContainer, RequestLog, SessionIdManager, SessionManager

All Known Implementing Classes:

AbstractConnector, AbstractHandler, AbstractHandlerContainer, AbstractLifeCycle, AbstractSessionManager, HashSessionIdManager, NCSARequestLog

public interface LifeCycle

The lifecycle interface for generic components.
Classes implementing this interface have a defined life cycle defined by the methods of this interface.

Author:

Greg Wilkins (gregw)

Method Summary

boolean	isFailed()
boolean	isRunning()
boolean	isStarted()
boolean	isStarting()
boolean	isStopped()
boolean	isStopping()
void	start() Starts the component.
void	stop() Stops the component.

Method Detail

start

public void start()
           throws Exception

Starts the component.

Throws:

Exception - If the component fails to start

See Also:

isStarted(), stop(), isFailed()

stop

public void stop()
          throws Exception

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

Throws:

Exception - If the component fails to stop

See Also:

isStopped(), start(), isFailed()

isRunning

public boolean isRunning()

Returns:

true if the component is starting or has been started.

isStarted

public boolean isStarted()

Returns:

true if the component has been started.

See Also:

start(), isStarting()

isStarting

public boolean isStarting()

Returns:

true if the component is starting.

See Also:

isStarted()

isStopping

public boolean isStopping()

Returns:

true if the component is stopping.

See Also:

isStopped()

isStopped

public boolean isStopped()

Returns:

true if the component has been stopped.

See Also:

stop(), isStopping()

isFailed

public boolean isFailed()

Returns:

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