de.cismet.tools.gui.downloadmanager

Class BackgroundTaskMultipleDownload

java.lang.Object

java.util.Observable

de.cismet.tools.gui.downloadmanager.MultipleDownload

de.cismet.tools.gui.downloadmanager.BackgroundTaskMultipleDownload

All Implemented Interfaces:

Download, Observer

public class BackgroundTaskMultipleDownload
extends MultipleDownload

BackgroundTaskMultipleDownload extends MultipleDownload, the difference is that the BackgroundTaskMultipleDownload does not need to know how many downloads it contains when it is started. Its encapsulated downloads are created in a background task provided to it by an instance of FetchDownloadsTask. This tasks runs in a SwingWorker and returns a List of Downloads. After the task has finished the created downloads are added to the BackgroundTaskMultipleDownload.

Note: the FetchDownloadsTask will not run in the EDT.

Version:

$Revision$, $Date$

Author:

Gilles Baatz

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	BackgroundTaskMultipleDownload.FetchDownloadsTask DOCUMENT ME!

Nested classes/interfaces inherited from interface de.cismet.tools.gui.downloadmanager.Download

Download.State

Constructor Summary

Constructors

Constructor and Description
BackgroundTaskMultipleDownload(Collection<? extends Download> downloads, String title, BackgroundTaskMultipleDownload.FetchDownloadsTask fetchDownloadsTask) Creates a new BackgroundTaskMultipleDownload object.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
Exception	getCaughtException() Returns the exception occurred while running this download.
int	hashCode()
void	startDownload() Notifies the download that it should start.

Methods inherited from class de.cismet.tools.gui.downloadmanager.MultipleDownload

getDownloads, getDownloadsCompleted, getDownloadsErroneous, getDownloadsTotal, getExceptionPanel, getFileToSaveTo, getStatus, getTitle, setStatus, update

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.cismet.tools.gui.downloadmanager.Download

addObserver, deleteObserver, getProgress

Constructor Detail

BackgroundTaskMultipleDownload

public BackgroundTaskMultipleDownload(Collection<? extends Download> downloads,
                                      String title,
                                      BackgroundTaskMultipleDownload.FetchDownloadsTask fetchDownloadsTask)

Creates a new BackgroundTaskMultipleDownload object.

Parameters:

downloads - DOCUMENT ME!

title - DOCUMENT ME!

fetchDownloadsTask - DOCUMENT ME!

Method Detail

startDownload

public void startDownload()

Description copied from interface: Download

Notifies the download that it should start.

Specified by:

startDownload in interface Download

Overrides:

startDownload in class MultipleDownload

getCaughtException

public Exception getCaughtException()

Description copied from interface: Download

Returns the exception occurred while running this download. Should only be invoked if the status of this download equals an erroneous status.

Should be changed in future releases to Map getCaughtExceptions() for Download implementations which encapsulate multiple downloads.

Specified by:

getCaughtException in interface Download

Overrides:

getCaughtException in class MultipleDownload

Returns:

The exception that was caught while downloading.

hashCode

public int hashCode()

Overrides:

hashCode in class MultipleDownload

equals

public boolean equals(Object obj)

Overrides:

equals in class MultipleDownload