net.axyana.qizxopen.util
Interface ProgressHandler

public interface ProgressHandler

Measures the progress of a time-consuming task and optionally allows to cancel it.

Method Summary

void	finishTask() Signals end of task.
void	fractionDone(double fraction) signals progress as a fraction between 0 and 1.
boolean	isCancelled() Tests whether the task is cancelled.
void	quantityDone(long size) signals progress as an estimated size: it is up to the client code to convert it to a fraction.
void	startTask(java.lang.String taskName, java.lang.String taskArgument) Starts a new task (name and arguments are application dependent).

Method Detail

startTask

public void startTask(java.lang.String taskName,
                      java.lang.String taskArgument)

Starts a new task (name and arguments are application dependent).

fractionDone

public void fractionDone(double fraction)

signals progress as a fraction between 0 and 1.

quantityDone

public void quantityDone(long size)

signals progress as an estimated size: it is up to the client code to convert it to a fraction.

finishTask

public void finishTask()

Signals end of task.

isCancelled

public boolean isCancelled()

Tests whether the task is cancelled.