Package org.geotools.swing

Class RenderingTask

Object

RenderingTask

All Implemented Interfaces:

Callable<Boolean>, RenderListener

public class RenderingTask
extends Object
implements Callable<Boolean>, RenderListener

A rendering task to be run by a RenderingExecutor.

Since:

8.0

Author:

Michael Bedward

Constructor Summary

Constructors

Constructor	Description
RenderingTask(MapContent mapContent, Graphics2D destinationGraphics, GTRenderer renderer)	Creates a new rendering task.

Method Summary

Modifier and Type	Method	Description
Boolean	call()	Called by the executor to run this rendering task.
void	cancel()
void	errorOccurred(Exception e)	Called by the renderer on error
void	featureRenderer(SimpleFeature feature)	Called by the renderer when each feature is drawn.
boolean	isCancelled()
boolean	isFailed()
boolean	isRunning()

Methods inherited from class Object

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

Methods inherited from interface RenderListener

labellingEnd, labellingStart, layerEnd, layerStart, renderingComplete

Constructor Details

RenderingTask

public RenderingTask(MapContent mapContent,
 Graphics2D destinationGraphics,
 GTRenderer renderer)

Creates a new rendering task.

Method Details

cancel

public void cancel()

call

public Boolean call()
             throws Exception

Called by the executor to run this rendering task.

Specified by:

call in interface Callable<Boolean>

Returns:

result of the task: completed or failed

Throws:

Exception

featureRenderer

public void featureRenderer(SimpleFeature feature)

Called by the renderer when each feature is drawn. This implementation does nothing.

Specified by:

featureRenderer in interface RenderListener

Parameters:

feature - the feature just drawn

errorOccurred

public void errorOccurred(Exception e)

Called by the renderer on error

Specified by:

errorOccurred in interface RenderListener

Parameters:

e - cause of the error

isRunning

public boolean isRunning()

isFailed

public boolean isFailed()

isCancelled

public boolean isCancelled()