org.argouml.model.uml
Class ClassListenerHashMap

java.lang.Object
  |
  +--org.argouml.model.uml.ClassListenerHashMap

class ClassListenerHashMap

extends java.lang.Object

A map that holds ElementListenerLists with lists of listeners that are interested in each and every event of a certain type of the instances of a certain meta-class.

Field Summary

private java.util.Map	_listenerMap The list of ListenerType - Listener pairs
private static MElementListener[]	NULL_ARRAY A null array to be shared by all empty listener lists

Constructor Summary

(package private)

ClassListenerHashMap()

Method Summary

private java.lang.Class[]	getHierarchy(java.lang.Class clazz)
EventListenerList[]	getListenerList(java.lang.Class element) Returns an EventListenerList with listeners that are interested in certain events of the given meta-class.
MElementListener[]	getListeners(java.lang.Class element, EventKey key) Returns all listeners that are interested in the given event.
boolean	isEmpty() Tests if the hashmap is empty.
void	put(java.lang.Class element, EventKey key, MElementListener listener) Puts a listener that is interested in a certain event that will be send by instances of the given meta-class.
void	remove(java.lang.Class element) Removes the list of listeners for the given meta-class.
void	remove(java.lang.Class element, EventKey key, MElementListener listener) Removes a listener as being interested in the given event.

Methods inherited from class java.lang.Object

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

Field Detail

NULL_ARRAY

private static final MElementListener[] NULL_ARRAY

A null array to be shared by all empty listener lists

_listenerMap

private transient java.util.Map _listenerMap

The list of ListenerType - Listener pairs

Constructor Detail

ClassListenerHashMap

ClassListenerHashMap()

Method Detail

put

public void put(java.lang.Class element,
                EventKey key,
                MElementListener listener)

Puts a listener that is interested in a certain event that will be send by instances of the given meta-class.

Parameters:

element - The meta-class the listener is interested in

key - The type/name pair designating the event type

listener - The listener that's interested in the given event type

remove

public void remove(java.lang.Class element,
                   EventKey key,
                   MElementListener listener)

Removes a listener as being interested in the given event.

Parameters:

element -

key -

listener -

remove

public void remove(java.lang.Class element)

Removes the list of listeners for the given meta-class.

Parameters:

element -

getListeners

public MElementListener[] getListeners(java.lang.Class element,
                                       EventKey key)

Returns all listeners that are interested in the given event.

Parameters:

element -

key -

Returns:

getListenerList

public EventListenerList[] getListenerList(java.lang.Class element)

Returns an EventListenerList with listeners that are interested in certain events of the given meta-class.

Parameters:

element -

Returns:

getHierarchy

private java.lang.Class[] getHierarchy(java.lang.Class clazz)

isEmpty

public boolean isEmpty()

Tests if the hashmap is empty.

Returns:

true if empty.