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public interface ItemChangeSource
Method Summary | |
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void |
addItemChangeListener(ItemChangeListener listener)
Add a new ItemChangeListener to the set of listeners
interested in being notified when ItemChangeEvent s occur. |
ItemChangeListener[] |
getItemChangeListeners()
Return the set of registered ItemChangeListener s for this instance. |
void |
removeItemChangeListener(ItemChangeListener listener)
Remove an existing ItemChangeListener (if any) from the
set of listeners interested in being notified when
ItemChangeEvent s occur. |
Method Detail |
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void addItemChangeListener(ItemChangeListener listener)
Add a new ItemChangeListener
to the set of listeners
interested in being notified when ItemChangeEvent
s occur.
listener
- The ItemChangeListener
to be added
NullPointerException
- if listener
is null
ItemChangeListener[] getItemChangeListeners()
Return the set of registered ItemChangeListener
s for this instance.
If there are no registered listeners, a zero-length array is returned.
void removeItemChangeListener(ItemChangeListener listener)
Remove an existing ItemChangeListener
(if any) from the
set of listeners interested in being notified when
ItemChangeEvent
s occur.
listener
- The ItemChangeListener
to be removed
NullPointerException
- if listener
is null
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