be.ugent.caagt.swirl
Interface GenericSelectionModel<E>

All Known Implementing Classes:

DefaultGenericSelectionModel

public interface GenericSelectionModel<E>

Model which keeps track of a single element selected from a group. The element is represented by an object type E. Classes that satisfy this interface can be used to implement a GenericSelectionGroup.

Models of this type are used by the MenuBuilder to implement radio button groups.

Method Summary

void	addChangeListener(javax.swing.event.ChangeListener listener) Adds a listener which should be notified of all changes in the model.
void	clearSelection() Clears the selection.
E	getSelection() Returns the current selection or null if nothing is currently selected.
boolean	isSelected() Check whether an element is currently selected.
void	removeChangeListener(javax.swing.event.ChangeListener listener) Removes a listener previously registered with addChangeListener(javax.swing.event.ChangeListener).
void	setSelection(E element) Set the current selection and notify any listeners in case of changes.

Method Detail

getSelection

E getSelection()

Returns the current selection or null if nothing is currently selected.

setSelection

void setSelection(E element)

Set the current selection and notify any listeners in case of changes.

Parameters:

element - object which represents the selected element, or null if the selection should be cleared

clearSelection

void clearSelection()

Clears the selection. Short for

    setSelection(null);
 

isSelected

boolean isSelected()

Check whether an element is currently selected. Short for

    getSelection() != null
 

addChangeListener

void addChangeListener(javax.swing.event.ChangeListener listener)

Adds a listener which should be notified of all changes in the model.

removeChangeListener

void removeChangeListener(javax.swing.event.ChangeListener listener)

Removes a listener previously registered with addChangeListener(javax.swing.event.ChangeListener).