Class JTree.EmptySelectionModel

java.lang.Object

javax.swing.tree.DefaultTreeSelectionModel

javax.swing.JTree.EmptySelectionModel

All Implemented Interfaces:

Serializable, Cloneable, TreeSelectionModel

Enclosing class:

JTree

protected static class JTree.EmptySelectionModel
extends DefaultTreeSelectionModel

EmptySelectionModel is a TreeSelectionModel that does not allow anything to be selected.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans has been added to the java.beans package. Please see XMLEncoder.

Since:

1.2

Field Summary

Fields

Modifier and Type	Field	Description
protected static final JTree.EmptySelectionModel	sharedInstance	The single instance of EmptySelectionModel.

Fields declared in class DefaultTreeSelectionModel

changeSupport, leadIndex, leadPath, leadRow, listenerList, listSelectionModel, rowMapper, selection, SELECTION_MODE_PROPERTY, selectionMode

Modifier and Type	Field	Description
protected SwingPropertyChangeSupport	changeSupport	Used to messaged registered listeners.
protected int	leadIndex	Index of the lead path in selection.
protected TreePath	leadPath	Last path that was added.
protected int	leadRow	Lead row.
protected EventListenerList	listenerList	Event listener list.
protected DefaultListSelectionModel	listSelectionModel	Handles maintaining the list selection model.
protected RowMapper	rowMapper	Provides a row for a given path.
protected TreePath[]	selection	Paths that are currently selected.
static final String	SELECTION_MODE_PROPERTY	Property name for selectionMode.
protected int	selectionMode	Mode for the selection, will be either SINGLE_TREE_SELECTION, CONTIGUOUS_TREE_SELECTION or DISCONTIGUOUS_TREE_SELECTION.

Fields declared in interface TreeSelectionModel

CONTIGUOUS_TREE_SELECTION, DISCONTIGUOUS_TREE_SELECTION, SINGLE_TREE_SELECTION

Modifier and Type	Field	Description
static final int	CONTIGUOUS_TREE_SELECTION	Selection can only be contiguous.
static final int	DISCONTIGUOUS_TREE_SELECTION	Selection can contain any number of items that are not necessarily contiguous.
static final int	SINGLE_TREE_SELECTION	Selection can only contain one path at a time.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	EmptySelectionModel()	Constructs an EmptySelectionModel.

Method Summary

Modifier and Type	Method	Description
void	addPropertyChangeListener(PropertyChangeListener listener)	This is overridden to do nothing; EmptySelectionModel does not allow a selection.
void	addSelectionPaths(TreePath[] paths)	This is overridden to do nothing; EmptySelectionModel does not allow a selection.
void	addTreeSelectionListener(TreeSelectionListener listener)	This is overridden to do nothing; EmptySelectionModel does not allow a selection.
void	removePropertyChangeListener(PropertyChangeListener listener)	This is overridden to do nothing; EmptySelectionModel does not allow a selection.
void	removeSelectionPaths(TreePath[] paths)	This is overridden to do nothing; EmptySelectionModel does not allow a selection.
void	removeTreeSelectionListener(TreeSelectionListener listener)	This is overridden to do nothing; EmptySelectionModel does not allow a selection.
void	setRowMapper(RowMapper mapper)	This is overridden to do nothing; EmptySelectionModel does not allow a selection.
void	setSelectionMode(int mode)	This is overridden to do nothing; EmptySelectionModel does not allow a selection.
void	setSelectionPaths(TreePath[] paths)	This is overridden to do nothing; EmptySelectionModel does not allow a selection.
static JTree.EmptySelectionModel	sharedInstance()	Returns the single instance of EmptySelectionModel.

Methods declared in class DefaultTreeSelectionModel

addSelectionPath, arePathsContiguous, canPathsBeAdded, canPathsBeRemoved, clearSelection, clone, fireValueChanged, getLeadSelectionPath, getLeadSelectionRow, getListeners, getMaxSelectionRow, getMinSelectionRow, getPropertyChangeListeners, getRowMapper, getSelectionCount, getSelectionMode, getSelectionPath, getSelectionPaths, getSelectionRows, getTreeSelectionListeners, insureRowContinuity, insureUniqueness, isPathSelected, isRowSelected, isSelectionEmpty, notifyPathChange, removeSelectionPath, resetRowSelection, setSelectionPath, toString, updateLeadIndex

Modifier and Type	Method	Description
void	addSelectionPath(TreePath path)	Adds path to the current selection.
protected boolean	arePathsContiguous(TreePath[] paths)	Returns true if the paths are contiguous, or this object has no RowMapper.
protected boolean	canPathsBeAdded(TreePath[] paths)	Used to test if a particular set of TreePaths can be added.
protected boolean	canPathsBeRemoved(TreePath[] paths)	Returns true if the paths can be removed without breaking the continuity of the model.
void	clearSelection()	Empties the current selection.
Object	clone()	Returns a clone of this object with the same selection.
protected void	fireValueChanged(TreeSelectionEvent e)	Notifies all listeners that are registered for tree selection events on this object.
TreePath	getLeadSelectionPath()	Returns the last path that was added.
int	getLeadSelectionRow()	Returns the lead selection index.
<T extends EventListener> T[]	getListeners(Class<T> listenerType)	Returns an array of all the objects currently registered as FooListeners upon this model.
int	getMaxSelectionRow()	Returns the largest value obtained from the RowMapper for the current set of selected TreePaths.
int	getMinSelectionRow()	Returns the smallest value obtained from the RowMapper for the current set of selected TreePaths.
PropertyChangeListener[]	getPropertyChangeListeners()	Returns an array of all the property change listeners registered on this DefaultTreeSelectionModel.
RowMapper	getRowMapper()	Returns the RowMapper instance that is able to map a TreePath to a row.
int	getSelectionCount()	Returns the number of paths that are selected.
int	getSelectionMode()	Returns the selection mode, one of SINGLE_TREE_SELECTION, DISCONTIGUOUS_TREE_SELECTION or CONTIGUOUS_TREE_SELECTION.
TreePath	getSelectionPath()	Returns the first path in the selection.
TreePath[]	getSelectionPaths()	Returns the selection.
int[]	getSelectionRows()	Returns the selection in terms of rows.
TreeSelectionListener[]	getTreeSelectionListeners()	Returns an array of all the tree selection listeners registered on this model.
protected void	insureRowContinuity()	Makes sure the currently selected TreePaths are valid for the current selection mode.
protected void	insureUniqueness()	This method is obsolete and its implementation is now a noop.
boolean	isPathSelected(TreePath path)	Returns true if the path, path, is in the current selection.
boolean	isRowSelected(int row)	Returns true if the row identified by row is selected.
boolean	isSelectionEmpty()	Returns true if the selection is currently empty.
protected void	notifyPathChange(Vector<?> changedPaths, TreePath oldLeadSelection)	Deprecated. As of JDK version 1.7
void	removeSelectionPath(TreePath path)	Removes path from the selection.
void	resetRowSelection()	Updates this object's mapping from TreePath to rows.
void	setSelectionPath(TreePath path)	Sets the selection to path.
String	toString()	Returns a string that displays and identifies this object's properties.
protected void	updateLeadIndex()	Updates the leadIndex instance variable.

Methods declared in class Object

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

Modifier and Type	Method	Description
boolean	equals(Object obj)	Indicates whether some other object is "equal to" this one.
protected void	finalize()	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
final Class<?>	getClass()	Returns the runtime class of this Object.
int	hashCode()	Returns a hash code value for this object.
final void	notify()	Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll()	Wakes up all threads that are waiting on this object's monitor.
final void	wait()	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
final void	wait(long timeoutMillis)	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
final void	wait(long timeoutMillis, int nanos)	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Field Details

sharedInstance

protected static final JTree.EmptySelectionModel sharedInstance

The single instance of EmptySelectionModel.

Constructor Details

EmptySelectionModel

protected EmptySelectionModel()

Constructs an EmptySelectionModel.

Method Details

sharedInstance

public static JTree.EmptySelectionModel sharedInstance()

Returns the single instance of EmptySelectionModel.

Returns:

single instance of EmptySelectionModel

setSelectionPaths

public void setSelectionPaths(TreePath[] paths)

This is overridden to do nothing; EmptySelectionModel does not allow a selection.

Specified by:

setSelectionPaths in interface TreeSelectionModel

Overrides:

setSelectionPaths in class DefaultTreeSelectionModel

Parameters:

paths - the paths to select; this is ignored

addSelectionPaths

public void addSelectionPaths(TreePath[] paths)

This is overridden to do nothing; EmptySelectionModel does not allow a selection.

Specified by:

addSelectionPaths in interface TreeSelectionModel

Overrides:

addSelectionPaths in class DefaultTreeSelectionModel

Parameters:

paths - the paths to add to the selection; this is ignored

removeSelectionPaths

public void removeSelectionPaths(TreePath[] paths)

This is overridden to do nothing; EmptySelectionModel does not allow a selection.

Specified by:

removeSelectionPaths in interface TreeSelectionModel

Overrides:

removeSelectionPaths in class DefaultTreeSelectionModel

Parameters:

paths - the paths to remove; this is ignored

setSelectionMode

public void setSelectionMode(int mode)

This is overridden to do nothing; EmptySelectionModel does not allow a selection.

Specified by:

setSelectionMode in interface TreeSelectionModel

Overrides:

setSelectionMode in class DefaultTreeSelectionModel

Parameters:

mode - the selection mode; this is ignored

Since:

1.7

setRowMapper

public void setRowMapper(RowMapper mapper)

This is overridden to do nothing; EmptySelectionModel does not allow a selection.

Specified by:

setRowMapper in interface TreeSelectionModel

Overrides:

setRowMapper in class DefaultTreeSelectionModel

Parameters:

mapper - the RowMapper instance; this is ignored

Since:

1.7

addTreeSelectionListener

public void addTreeSelectionListener(TreeSelectionListener listener)

This is overridden to do nothing; EmptySelectionModel does not allow a selection.

Specified by:

addTreeSelectionListener in interface TreeSelectionModel

Overrides:

addTreeSelectionListener in class DefaultTreeSelectionModel

Parameters:

listener - the listener to add; this is ignored

Since:

1.7

removeTreeSelectionListener

public void removeTreeSelectionListener(TreeSelectionListener listener)

This is overridden to do nothing; EmptySelectionModel does not allow a selection.

Specified by:

removeTreeSelectionListener in interface TreeSelectionModel

Overrides:

removeTreeSelectionListener in class DefaultTreeSelectionModel

Parameters:

listener - the listener to remove; this is ignored

Since:

1.7

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)

This is overridden to do nothing; EmptySelectionModel does not allow a selection.

Specified by:

addPropertyChangeListener in interface TreeSelectionModel

Overrides:

addPropertyChangeListener in class DefaultTreeSelectionModel

Parameters:

listener - the listener to add; this is ignored

Since:

1.7

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener listener)

This is overridden to do nothing; EmptySelectionModel does not allow a selection.

Specified by:

removePropertyChangeListener in interface TreeSelectionModel

Overrides:

removePropertyChangeListener in class DefaultTreeSelectionModel

Parameters:

listener - the listener to remove; this is ignored

Since:

1.7