Module jdk.accessibility

Package com.sun.java.accessibility.util

Class AccessibilityListenerList

java.lang.Object

com.sun.java.accessibility.util.AccessibilityListenerList

public class AccessibilityListenerList
extends Object

The AccessibilityListenerList is a copy of the Swing EventListerList class.

Field Summary

Fields

Modifier and Type	Field	Description
protected Object[]	listenerList	The list of listener type, listener pairs

Constructor Summary

Constructors

Constructor	Description
AccessibilityListenerList()

Method Summary

Modifier and Type	Method	Description
void	add(Class<? extends EventListener> t, EventListener l)	Add the listener as a listener of the specified type.
int	getListenerCount()	Returns the total number of listeners for this listener list.
int	getListenerCount(Class<? extends EventListener> t)	Return the total number of listeners of the supplied type for this listener list.
Object[]	getListenerList()	Passes back the event listener list as an array of listener type, listener pairs.
void	remove(Class<? extends EventListener> t, EventListener l)	Remove the listener as a listener of the specified type.
String	toString()	Return a string representation of the AccessibilityListenerList.

Methods inherited from class java.lang.Object

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

Field Detail

listenerList

protected transient Object[] listenerList

The list of listener type, listener pairs

Constructor Detail

AccessibilityListenerList

public AccessibilityListenerList()

Method Detail

getListenerList

public Object[] getListenerList()

Passes back the event listener list as an array of listener type, listener pairs. Note that for performance reasons, this implementation passes back the actual data structure in which the listener data is stored internally. This method is guaranteed to pass back a non-null array, so that no null-checking is required in fire methods. A zero-length array of Object is returned if there are currently no listeners.

Absolutely no modification of the data contained in this array should be made. If any such manipulation is necessary, it should be done on a copy of the array returned rather than the array itself.

Returns:

an array of listener type, listener pairs.

getListenerCount

public int getListenerCount()

Returns the total number of listeners for this listener list.

Returns:

the total number of listeners for this listener list.

getListenerCount

public int getListenerCount(Class<? extends EventListener> t)

Return the total number of listeners of the supplied type for this listener list.

Parameters:

t - the type of the listener to be counted

Returns:

the number of listeners found

add

public void add(Class<? extends EventListener> t,
                EventListener l)

Add the listener as a listener of the specified type.

Parameters:

t - the type of the listener to be added

l - the listener to be added

remove

public void remove(Class<? extends EventListener> t,
                   EventListener l)

Remove the listener as a listener of the specified type.

Parameters:

t - the type of the listener to be removed

l - the listener to be removed

toString

public String toString()

Return a string representation of the AccessibilityListenerList.

Overrides:

toString in class Object

Returns:

a string representation of the AccessibilityListenerList.