Package com.google.gwt.view.client

Interface SelectionModel<T>

Type Parameters:

T - the data type of records in the list

All Superinterfaces:

HasHandlers, ProvidesKey<T>, SelectionChangeEvent.HasSelectionChangedHandlers

All Known Subinterfaces:

SetSelectionModel<T>

All Known Implementing Classes:

DefaultSelectionModel, MultiSelectionModel, NoSelectionModel, OrderedMultiSelectionModel, SelectionModel.AbstractSelectionModel, SingleSelectionModel

public interface SelectionModel<T>
extends SelectionChangeEvent.HasSelectionChangedHandlers, ProvidesKey<T>

A model for selection within a list.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	SelectionModel.AbstractSelectionModel<T>	A default implementation of SelectionModel that provides listener addition and removal.

Method Summary

Modifier and Type	Method	Description
HandlerRegistration	addSelectionChangeHandler(SelectionChangeEvent.Handler handler)	Adds a SelectionChangeEvent handler.
boolean	isSelected(T object)	Check if an object is selected.
void	setSelected(T object, boolean selected)	Set the selected state of an object and fire a SelectionChangeEvent if the selection has changed.

Methods inherited from interface com.google.gwt.event.shared.HasHandlers

fireEvent

Methods inherited from interface com.google.gwt.view.client.ProvidesKey

getKey

Method Details

addSelectionChangeHandler

HandlerRegistration addSelectionChangeHandler(SelectionChangeEvent.Handler handler)

Adds a SelectionChangeEvent handler.

Specified by:

addSelectionChangeHandler in interface SelectionChangeEvent.HasSelectionChangedHandlers

Parameters:

handler - the handler

Returns:

the registration for the event

isSelected

boolean isSelected(T object)

Check if an object is selected.

Parameters:

object - the object

Returns:

true if selected, false if not

setSelected

void setSelected(T object,
 boolean selected)

Set the selected state of an object and fire a SelectionChangeEvent if the selection has changed. Subclasses should not fire an event in the case where selected is true and the object was already selected, or selected is false and the object was not previously selected.

Parameters:

object - the object to select or deselect

selected - true to select, false to deselect