Module java.desktop

Package javax.swing.plaf.basic

Class BasicDirectoryModel

java.lang.Object

javax.swing.AbstractListModel<Object>

javax.swing.plaf.basic.BasicDirectoryModel

All Implemented Interfaces:

PropertyChangeListener, Serializable, EventListener, ListModel<Object>

public class BasicDirectoryModel
extends AbstractListModel<Object>
implements PropertyChangeListener

Basic implementation of a file list.

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.swing.AbstractListModel

listenerList

Constructor Summary

Constructors

Constructor	Description
BasicDirectoryModel(JFileChooser filechooser)	Constructs a new instance of BasicDirectoryModel.

Method Summary

Modifier and Type	Method	Description
void	addPropertyChangeListener(PropertyChangeListener listener)	Adds a PropertyChangeListener to the listener list.
boolean	contains(Object o)	Returns true if an element o is in file cache, otherwise, returns false.
void	fireContentsChanged()	Invoked when a content is changed.
protected void	firePropertyChange(String propertyName, Object oldValue, Object newValue)	Support for reporting bound property changes for boolean properties.
Vector<File>	getDirectories()	Returns a list of directories.
Object	getElementAt(int index)	Returns the value at the specified index.
Vector<File>	getFiles()	Returns a list of files.
PropertyChangeListener[]	getPropertyChangeListeners()	Returns an array of all the property change listeners registered on this component.
int	getSize()	Returns the length of the list.
int	indexOf(Object o)	Returns an index of element o in file cache.
void	intervalAdded(ListDataEvent e)	Obsolete - not used.
void	intervalRemoved(ListDataEvent e)	Obsolete - not used.
void	invalidateFileCache()	This method is used to interrupt file loading thread.
protected boolean	lt(File a, File b)	Obsolete - not used
void	propertyChange(PropertyChangeEvent e)	This method gets called when a bound property is changed.
void	removePropertyChangeListener(PropertyChangeListener listener)	Removes a PropertyChangeListener from the listener list.
boolean	renameFile(File oldFile, File newFile)	Renames a file in the underlying file system.
protected void	sort(Vector<? extends File> v)	Sorts a list of files.
void	validateFileCache()	Validates content of file cache.

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)

Constructs a new instance of BasicDirectoryModel.

Parameters:

filechooser - an instance of {JFileChooser}

Method Detail

propertyChange

public void propertyChange(PropertyChangeEvent e)

Description copied from interface: PropertyChangeListener

This method gets called when a bound property is changed.

Specified by:

propertyChange in interface PropertyChangeListener

Parameters:

e - A PropertyChangeEvent object describing the event source and the property that has changed.

invalidateFileCache

public void invalidateFileCache()

This method is used to interrupt file loading thread.

getDirectories

public Vector<File> getDirectories()

Returns a list of directories.

Returns:

a list of directories

getFiles

public Vector<File> getFiles()

Returns a list of files.

Returns:

a list of files

validateFileCache

public void validateFileCache()

Validates content of file cache.

renameFile

public boolean renameFile(File oldFile,
                          File newFile)

Renames a file in the underlying file system.

Parameters:

oldFile - a File object representing the existing file

newFile - a File object representing the desired new file name

Returns:

true if rename succeeded, otherwise false

Since:

1.4

fireContentsChanged

public void fireContentsChanged()

Invoked when a content is changed.

getSize

public int getSize()

Description copied from interface: ListModel

Returns the length of the list.

Specified by:

getSize in interface ListModel<Object>

Returns:

the length of the list

contains

public boolean contains(Object o)

Returns true if an element o is in file cache, otherwise, returns false.

Parameters:

o - an element

Returns:

true if an element o is in file cache

indexOf

public int indexOf(Object o)

Returns an index of element o in file cache.

Parameters:

o - an element

Returns:

an index of element o in file cache

getElementAt

public Object getElementAt(int index)

Description copied from interface: ListModel

Returns the value at the specified index.

Specified by:

getElementAt in interface ListModel<Object>

Parameters:

index - the requested index

Returns:

the value at index

intervalAdded

public void intervalAdded(ListDataEvent e)

Obsolete - not used.

Parameters:

e - list data event

intervalRemoved

public void intervalRemoved(ListDataEvent e)

Obsolete - not used.

Parameters:

e - list data event

sort

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

Sorts a list of files.

Parameters:

v - a list of files

lt

protected boolean lt(File a,
                     File b)

Obsolete - not used

Parameters:

a - a file

b - another file

Returns:

a comparison of the file names

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)

Adds a PropertyChangeListener to the listener list. The listener is registered for all bound properties of this class.

If listener is null, no exception is thrown and no action is performed.

Parameters:

listener - the property change listener to be added

Since:

1.6

See Also:

removePropertyChangeListener(java.beans.PropertyChangeListener), getPropertyChangeListeners()

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener listener)

Removes a PropertyChangeListener from the listener list.

If listener is null, no exception is thrown and no action is performed.

Parameters:

listener - the PropertyChangeListener to be removed

Since:

1.6

See Also:

addPropertyChangeListener(java.beans.PropertyChangeListener), getPropertyChangeListeners()

getPropertyChangeListeners

public PropertyChangeListener[] getPropertyChangeListeners()

Returns an array of all the property change listeners registered on this component.

Returns:

all of this component's PropertyChangeListeners or an empty array if no property change listeners are currently registered

Since:

1.6

See Also:

addPropertyChangeListener(java.beans.PropertyChangeListener), removePropertyChangeListener(java.beans.PropertyChangeListener), PropertyChangeSupport.getPropertyChangeListeners()

firePropertyChange

protected void firePropertyChange(String propertyName,
                                  Object oldValue,
                                  Object newValue)

Support for reporting bound property changes for boolean properties. This method can be called when a bound property has changed and it will send the appropriate PropertyChangeEvent to any registered PropertyChangeListeners.

Parameters:

propertyName - the property whose value has changed

oldValue - the property's previous value

newValue - the property's new value

Since:

1.6