javax.swing.event
Class EventListenerList

java.lang.Object
  |
  +--javax.swing.event.EventListenerList

All Implemented Interfaces:

Serializable

public class EventListenerList

extends Object

implements Serializable

Unsafe:

See Also:

Serialized Form

Field Summary

protected Object[]	listenerList
private static Object[]	NULL_ARRAY

Constructor Summary

EventListenerList()
Suppressed:

Method Summary

void	add(Class t, EventListener l) Suppressed: Adds the listener as a listener of the specified type.
int	getListenerCount() Suppressed: Returns the total number of listeners for this listener list.
int	getListenerCount(Class t) Suppressed: Returns the total number of listeners of the supplied type for this listener list.
private int	getListenerCount(Object[] list, Class t)
Object[]	getListenerList() Suppressed: Passes back the event listener list as an array of ListenerType-listener pairs.
EventListener[]	getListeners(Class t) Suppressed: Return an array of all the listeners of the given type.
private void	readObject(ObjectInputStream s)
void	remove(Class t, EventListener l) Suppressed: Removes the listener as a listener of the specified type.
String	toString() Suppressed: Returns a string representation of the EventListenerList.
private void	writeObject(ObjectOutputStream s)

Methods inherited from class java.lang.Object

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

Field Detail

NULL_ARRAY

private static final Object[] NULL_ARRAY

listenerList

protected transient Object[] listenerList

Constructor Detail

EventListenerList

public EventListenerList()

Suppressed:

Method Detail

getListenerList

public Object[] getListenerList()

Suppressed: Passes back the event listener list as an array of ListenerType-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 should be returned if there are currently no listeners. WARNING!!! 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.

getListeners

public EventListener[] getListeners(Class t)

Suppressed: Return an array of all the listeners of the given type.

Returns:

all of the listeners of the specified type.

Since:

1.3

getListenerCount

public int getListenerCount()

Suppressed: Returns the total number of listeners for this listener list.

getListenerCount

public int getListenerCount(Class t)

Suppressed: Returns the total number of listeners of the supplied type for this listener list.

getListenerCount

private int getListenerCount(Object[] list,
                             Class t)

add

public void add(Class t,
                EventListener l)

Suppressed: Adds 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 t,
                   EventListener l)

Suppressed: Removes 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

writeObject

private void writeObject(ObjectOutputStream s)
                  throws IOException

IOException

readObject

private void readObject(ObjectInputStream s)
                 throws IOException,
                        ClassNotFoundException

IOException

ClassNotFoundException

toString

public String toString()

Suppressed: Returns a string representation of the EventListenerList.

Overrides:

toString in class Object

Returns:

a string representation of the object.