Interface IPreviewPositionListener

All Superinterfaces:

IPositionListener

All Known Subinterfaces:

IPositionUpdater<T,P>

All Known Implementing Classes:

PositionList, PositionListBase

public interface IPreviewPositionListener
extends IPositionListener

Method Summary

Modifier and Type	Method	Description
void	changed(int index, Object oldValue, Object newValue)	After set Notification
Object	changing(int index, Object value)	Before set Notification
void	deleting(int index, int count)	before delete Notification

Methods inherited from interface IPositionListener

deleted, inserted

Method Details

deleting

void deleting(int index,
 int count)

before delete Notification

Parameters:

index - at which delete will be performed, list contents and size at this point have not changed

count - of elements deleted

changing

Object changing(int index,
 Object value)

Before set Notification

NOTE: the returned class should be the same or a subclass of original object's class

Parameters:

index - at which set is being performed, list contents and size at this point are not updated

value - new value for the element

Returns:

value to use for setting the element

changed

void changed(int index,
 Object oldValue,
 Object newValue)

After set Notification

NOTE: the returned class should be the same or a subclass of original object's class

Parameters:

index - at which set is being performed, list contents and size at this point are already updated

oldValue - value at index before setting

newValue - value at index before setting