AccordionSelectionListener

All Known Implementing Classes:

AccordionSelectionListener.Adapter, AccordionSelectionListener.Listeners, TerraAccordionSkin
```
public interface AccordionSelectionListener
```
Accordion selection listener interface.

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static class`	`AccordionSelectionListener.Adapter`	Deprecated. Since 2.1 and Java 8 the interface itself has default implementations.
`static class`	`AccordionSelectionListener.Listeners`	Accordion selection listeners.

Method Summary

All Methods Instance Methods Default Methods
Modifier and Type	Method	Description
`default Vote`	`previewSelectedIndexChange(Accordion accordion, int selectedIndex)`	Called to preview a selected index change.
`default void`	`selectedIndexChanged(Accordion accordion, int previousSelectedIndex)`	Called when an accordion's selected index has changed.
`default void`	`selectedIndexChangeVetoed(Accordion accordion, Vote reason)`	Called when a selected index change has been vetoed.

- Method Detail
  - previewSelectedIndexChange
```
default Vote previewSelectedIndexChange(Accordion accordion,
                                        int selectedIndex)
```
    Called to preview a selected index change.
    
    Parameters:
    
    accordion - The source of the event.
    
    selectedIndex - The index that will be selected.
    
    Returns:
    
    The consensus vote as to whether to allow the selected index change.
  - selectedIndexChangeVetoed
```
default void selectedIndexChangeVetoed(Accordion accordion,
                                       Vote reason)
```
    Called when a selected index change has been vetoed.
    
    Parameters:
    
    accordion - The source of the event.
    
    reason - The reason the event was vetoed.
  - selectedIndexChanged
```
default void selectedIndexChanged(Accordion accordion,
                                  int previousSelectedIndex)
```
    Called when an accordion's selected index has changed.
    
    Parameters:
    
    accordion - The source of the event.
    
    previousSelectedIndex - If the selection changed directly, contains the index that was previously selected. Otherwise, contains the current selection.