de.intarsys.tools.component

Class CommonStartStop

java.lang.Object

de.intarsys.tools.component.CommonStartStop

All Implemented Interfaces:

IStartStop

public abstract class CommonStartStop
extends Object
implements IStartStop

A common implementation of IStartStop. This abstract class ensures that start and stop procedures are executed only once.

Constructor Summary

Constructors

Constructor and Description
CommonStartStop()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isStarted() Answer true if this object is started
void	start() Start the component lifecycle.
void	stop() Stop the component lifecycle.
boolean	stopRequested(Set visited) Ask the component if it agrees to end its lifecycle at the very moment.

Methods inherited from class java.lang.Object

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

Constructor Detail

CommonStartStop

public CommonStartStop()

Method Detail

isStarted

public final boolean isStarted()

Description copied from interface: IStartStop

Answer true if this object is started

Specified by:

isStarted in interface IStartStop

Returns:

Answer true if this object is started.

start

public final void start()

Description copied from interface: IStartStop

Start the component lifecycle. A RuntimeException is expected when starting the component fails.

Specified by:

start in interface IStartStop

stop

public final void stop()

Description copied from interface: IStartStop

Stop the component lifecycle. All resources should be freed. A RuntimeException is expected when stopping the component fails.

Specified by:

stop in interface IStartStop

stopRequested

public boolean stopRequested(Set visited)

Description copied from interface: IStartStop

Ask the component if it agrees to end its lifecycle at the very moment. The component may deny this request, but it must be prepared anyway to be stopped.

Specified by:

stopRequested in interface IStartStop

Parameters:

visited - The optional set of already visited objects in the stop request cycle.