edu.luc.cs.trull
Class ComponentSchedulerAdapter

java.lang.Object
  edu.luc.cs.trull.ComponentSchedulerAdapter

All Implemented Interfaces:

ComponentScheduler, Scheduler

public class ComponentSchedulerAdapter
extends java.lang.Object
implements ComponentScheduler

An adapter for using any Scheduler as a ComponentScheduler.

See Also:

ComponentScheduler, Scheduler

Field Summary

private static org.apache.log4j.Logger	logger
private Scheduler	scheduler The original scheduler instance.

Constructor Summary

ComponentSchedulerAdapter(Scheduler scheduler)

Method Summary

void	await() This method waits for the runner to finish processing all pending requests.
void	execute(java.lang.Runnable r) This method executes a Runnable and waits for its completion.
void	propertyChange(Component c, java.beans.PropertyChangeEvent event) This method sends an event to the component and waits until the component has processed the event.
void	resume(Component c) This method resumes a component and waits until the component has resumed.
void	schedule(java.lang.Runnable r) This method schedules a Runnable for later execution.
void	start(Component c) This method starts a component and waits until the component is ready.
void	start(Component c, java.beans.PropertyChangeEvent event) This method starts a component with the given event and waits until the component is ready.
void	stop(Component c) This method stops a component and waits until the component has stopped.
void	suspend(Component c) This method suspends a component and waits until the component has suspended.

Methods inherited from class java.lang.Object

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

Field Detail

logger

private static final org.apache.log4j.Logger logger

scheduler

private Scheduler scheduler

The original scheduler instance.

Constructor Detail

ComponentSchedulerAdapter

public ComponentSchedulerAdapter(Scheduler scheduler)

Method Detail

await

public void await()
           throws java.lang.InterruptedException

Description copied from interface: ComponentScheduler

This method waits for the runner to finish processing all pending requests. This capability is important for avoiding race conditions.

Specified by:

await in interface ComponentScheduler

Specified by:

await in interface Scheduler

Throws:

java.lang.InterruptedException - if the current thread is interrupted before or while waiting.

execute

public void execute(java.lang.Runnable r)
             throws java.lang.InterruptedException

Description copied from interface: Scheduler

This method executes a Runnable and waits for its completion.

Specified by:

execute in interface Scheduler

Parameters:

r - the Runnable to be executed.

Throws:

java.lang.InterruptedException - if the current thread is interrupted while waiting.

propertyChange

public void propertyChange(Component c,
                           java.beans.PropertyChangeEvent event)
                    throws java.lang.InterruptedException

Description copied from interface: ComponentScheduler

This method sends an event to the component and waits until the component has processed the event.

Specified by:

propertyChange in interface ComponentScheduler

Parameters:

c - the component that will receive the event.

event - the event sent to the component.

Throws:

java.lang.InterruptedException

resume

public void resume(Component c)
            throws java.lang.InterruptedException

Description copied from interface: ComponentScheduler

This method resumes a component and waits until the component has resumed.

Specified by:

resume in interface ComponentScheduler

Parameters:

c - the component to be resumed.

Throws:

java.lang.InterruptedException

schedule

public void schedule(java.lang.Runnable r)

Description copied from interface: Scheduler

This method schedules a Runnable for later execution.

Specified by:

schedule in interface Scheduler

Parameters:

r - the Runnable to be scheduled.

start

public void start(Component c)
           throws java.lang.InterruptedException

Description copied from interface: ComponentScheduler

This method starts a component and waits until the component is ready.

Specified by:

start in interface ComponentScheduler

Parameters:

c - the component to be started.

Throws:

java.lang.InterruptedException

start

public void start(Component c,
                  java.beans.PropertyChangeEvent event)
           throws java.lang.InterruptedException

Description copied from interface: ComponentScheduler

This method starts a component with the given event and waits until the component is ready.

Specified by:

start in interface ComponentScheduler

Parameters:

c - the component to be started.

event - the event to be sent to the component.

Throws:

java.lang.InterruptedException

stop

public void stop(Component c)
          throws java.lang.InterruptedException

Description copied from interface: ComponentScheduler

This method stops a component and waits until the component has stopped.

Specified by:

stop in interface ComponentScheduler

Parameters:

c - the component to be stopped.

Throws:

java.lang.InterruptedException

suspend

public void suspend(Component c)
             throws java.lang.InterruptedException

Description copied from interface: ComponentScheduler

This method suspends a component and waits until the component has suspended.

Specified by:

suspend in interface ComponentScheduler

Parameters:

c - the component to be suspended.

Throws:

java.lang.InterruptedException