org.eclipse.jpt.common.core.utility.command
Class NotifyingRepeatingJobCommand.Null

java.lang.Object
  org.eclipse.jpt.common.core.utility.command.NotifyingRepeatingJobCommand.Null

All Implemented Interfaces:

Serializable, InterruptibleJobCommand, JobCommand, NotifyingRepeatingJobCommand, RepeatingJobCommand

Enclosing interface:

NotifyingRepeatingJobCommand

public static final class NotifyingRepeatingJobCommand.Null
extends Object
implements NotifyingRepeatingJobCommand, Serializable

Singleton implementation of the notifying repeating command interface that will do nothing when executed.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.jpt.common.core.utility.command.NotifyingRepeatingJobCommand

NotifyingRepeatingJobCommand.Listener, NotifyingRepeatingJobCommand.Null

Nested classes/interfaces inherited from interface org.eclipse.jpt.common.core.utility.command.JobCommand

JobCommand.Disabled

Nested classes/interfaces inherited from interface org.eclipse.jpt.common.core.utility.command.InterruptibleJobCommand

InterruptibleJobCommand.Interrupted

Field Summary

static NotifyingRepeatingJobCommand

INSTANCE

Method Summary

void	addListener(NotifyingRepeatingJobCommand.Listener listener) Add the specified listener.
IStatus	execute(IProgressMonitor monitor) Execute the command.
static NotifyingRepeatingJobCommand	instance()
void	removeListener(NotifyingRepeatingJobCommand.Listener listener) Remove the specified listener.
void	start() Start the job command, allowing it to begin executing with the next call to JobCommand.execute(IProgressMonitor).
void	stop() Stop the job command; ignore further calls to JobCommand.execute(IProgressMonitor).
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final NotifyingRepeatingJobCommand INSTANCE

Method Detail

instance

public static NotifyingRepeatingJobCommand instance()

start

public void start()

Description copied from interface: RepeatingJobCommand

Start the job command, allowing it to begin executing with the next call to JobCommand.execute(IProgressMonitor).

Specified by:

start in interface RepeatingJobCommand

execute

public IStatus execute(IProgressMonitor monitor)

Description copied from interface: JobCommand

Execute the command. The semantics of the command is determined by the contract between the client and server. The command should check, as appropriate, whether the specified progress monitor is "canceled"; if it is, the command should return a result status of severity IStatus.CANCEL. The singleton cancel status Status.CANCEL_STATUS can be used for this purpose.

Nested methods can also check the progress monitor and, if it is "canceled", throw an OperationCanceledException.

Specified by:

execute in interface InterruptibleJobCommand

Specified by:

execute in interface JobCommand

See Also:

IProgressMonitor.isCanceled(), Job.run(IProgressMonitor monitor)

stop

public void stop()

Description copied from interface: RepeatingJobCommand

Stop the job command; ignore further calls to JobCommand.execute(IProgressMonitor).

Specified by:

stop in interface RepeatingJobCommand

addListener

public void addListener(NotifyingRepeatingJobCommand.Listener listener)

Description copied from interface: NotifyingRepeatingJobCommand

Add the specified listener.

Specified by:

addListener in interface NotifyingRepeatingJobCommand

removeListener

public void removeListener(NotifyingRepeatingJobCommand.Listener listener)

Description copied from interface: NotifyingRepeatingJobCommand

Remove the specified listener.

Specified by:

removeListener in interface NotifyingRepeatingJobCommand

toString

public String toString()

Overrides:

toString in class Object