javax.swing.plaf.basic

Class BasicDirectoryModel

java.lang.Object

javax.swing.AbstractListModel

javax.swing.plaf.basic.BasicDirectoryModel

All Implemented Interfaces:

PropertyChangeListener, Serializable, EventListener, ListModel

public class BasicDirectoryModel
extends AbstractListModel
implements PropertyChangeListener

Implements an AbstractListModel for directories where the source of the files is a JFileChooser object. This class is used for sorting and ordering the file list in a JFileChooser L&F object.

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.swing.AbstractListModel

listenerList

Constructor Summary

Constructors

Constructor and Description
BasicDirectoryModel(JFileChooser filechooser) Creates a new BasicDirectoryModel object.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	contains(Object o) Returns whether a given (File) object is included in the list.
void	fireContentsChanged() Fires a content change event.
Vector<File>	getDirectories() Returns a Vector of (java.io.File) objects containing the directories in this list.
Object	getElementAt(int index) Returns the (java.io.File) object at an index in the list.
Vector<File>	getFiles() Returns a Vector of (java.io.File) objects containing the files in this list.
int	getSize() Returns the size of the list, which only includes directories if the JFileChooser is set to DIRECTORIES_ONLY.
int	indexOf(Object o) Returns the index of an (java.io.File) object in the list.
void	intervalAdded(ListDataEvent e) Obsoleted method which does nothing.
void	intervalRemoved(ListDataEvent e) Obsoleted method which does nothing.
void	invalidateFileCache() Obsoleted method which does nothing.
protected boolean	lt(File a, File b) Less than, determine the relative order in the list of two files for sorting purposes.
void	propertyChange(PropertyChangeEvent e) Listens for a property change; the change in file selection mode of the associated JFileChooser.
boolean	renameFile(File oldFile, File newFile) Renames a file - However, does not re-sort the list or replace the old file with the new one in the list.
protected void	sort(Vector<? extends File> v) Sorts a Vector of File objects.
void	validateFileCache() Re-loads the list of files

Methods inherited from class javax.swing.AbstractListModel

addListDataListener, fireContentsChanged, fireIntervalAdded, fireIntervalRemoved, getListDataListeners, getListeners, removeListDataListener

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicDirectoryModel

public BasicDirectoryModel(JFileChooser filechooser)

Creates a new BasicDirectoryModel object.

Parameters:

filechooser - DOCUMENT ME!

Method Detail

contains

public boolean contains(Object o)

Returns whether a given (File) object is included in the list.

Parameters:

o - - The file object to test.

Returns:

true if the list contains the given object.

fireContentsChanged

public void fireContentsChanged()

Fires a content change event.

getDirectories

public Vector<File> getDirectories()

Returns a Vector of (java.io.File) objects containing the directories in this list.

Returns:

a Vector

getElementAt

public Object getElementAt(int index)

Returns the (java.io.File) object at an index in the list.

Specified by:

getElementAt in interface ListModel

Parameters:

index - The list index

Returns:

a File object

getFiles

public Vector<File> getFiles()

Returns a Vector of (java.io.File) objects containing the files in this list.

Returns:

a Vector

getSize

public int getSize()

Returns the size of the list, which only includes directories if the JFileChooser is set to DIRECTORIES_ONLY. Otherwise, both directories and files are included in the count.

Specified by:

getSize in interface ListModel

Returns:

The size of the list.

indexOf

public int indexOf(Object o)

Returns the index of an (java.io.File) object in the list.

Parameters:

o - The object - normally a File.

Returns:

the index of that object, or -1 if it is not in the list.

intervalAdded

public void intervalAdded(ListDataEvent e)

Obsoleted method which does nothing.

intervalRemoved

public void intervalRemoved(ListDataEvent e)

Obsoleted method which does nothing.

invalidateFileCache

public void invalidateFileCache()

Obsoleted method which does nothing.

lt

protected boolean lt(File a,
         File b)

Less than, determine the relative order in the list of two files for sorting purposes. The order is: directories < files, and thereafter alphabetically, using the default locale collation.

Parameters:

a - the first file

b - the second file

Returns:

true if a > b, false if a < b.

propertyChange

public void propertyChange(PropertyChangeEvent e)

Listens for a property change; the change in file selection mode of the associated JFileChooser. Reloads the file cache on that event.

Specified by:

propertyChange in interface PropertyChangeListener

Parameters:

e - - A PropertyChangeEvent.

renameFile

public boolean renameFile(File oldFile,
                 File newFile)

Renames a file - However, does not re-sort the list or replace the old file with the new one in the list.

Parameters:

oldFile - The old file

newFile - The new file name

Returns:

true if the rename succeeded

sort

protected void sort(Vector<? extends File> v)

Sorts a Vector of File objects.

Parameters:

v - The Vector to sort.

validateFileCache

public void validateFileCache()

Re-loads the list of files