Package org.locationtech.jts.jump.task

Class DummyTaskMonitor

java.lang.Object

org.locationtech.jts.jump.task.DummyTaskMonitor

All Implemented Interfaces:

TaskMonitor

Direct Known Subclasses:

TaskMonitorFilter

public class DummyTaskMonitor
extends Object
implements TaskMonitor

Implementation of TaskMonitor that does nothing. Can be used for Tasks that do not need to report on their status (for instance, tasks run only in batch mode).

Constructor Summary

Constructors

Constructor	Description
DummyTaskMonitor()

Method Summary

Modifier and Type	Method	Description
void	allowCancellationRequests()	Notifies parties that the task will accept requests for cancellation (though the task is not obligated to cancel immediately, or at all for that matter).
boolean	isCancelRequested()	Checks whether a party has requested that the task be cancelled.
void	report(int subtasksDone, int totalSubtasks, String subtaskDescription)	Reports the number of items processed.
void	report(Exception exception)	Reports an Exception that occurred.
void	report(String description)	Describes the status of the task.

Methods inherited from class java.lang.Object

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

Constructor Detail

DummyTaskMonitor

public DummyTaskMonitor()

Method Detail

report

public void report(String description)

Description copied from interface: TaskMonitor

Describes the status of the task.

Specified by:

report in interface TaskMonitor

Parameters:

description - a description of the progress of the overall task

report

public void report(int subtasksDone,
                   int totalSubtasks,
                   String subtaskDescription)

Description copied from interface: TaskMonitor

Reports the number of items processed.

Specified by:

report in interface TaskMonitor

Parameters:

subtasksDone - the number of items that have been processed

totalSubtasks - the total number of items being processed, or -1 if the total number is not known

subtaskDescription - a one-word description of the items, such as "features"

allowCancellationRequests

public void allowCancellationRequests()

Description copied from interface: TaskMonitor

Notifies parties that the task will accept requests for cancellation (though the task is not obligated to cancel immediately, or at all for that matter).

Specified by:

allowCancellationRequests in interface TaskMonitor

isCancelRequested

public boolean isCancelRequested()

Description copied from interface: TaskMonitor

Checks whether a party has requested that the task be cancelled. However, the task is not obligated to cancel immediately (or at all).

Specified by:

isCancelRequested in interface TaskMonitor

Returns:

whether a party has requested that the task be cancelled

report

public void report(Exception exception)

Description copied from interface: TaskMonitor

Reports an Exception that occurred. The task may choose to carry on.

Specified by:

report in interface TaskMonitor

Parameters:

exception - an Exception that occurred during the execution of the task.