com.google.gwt.view.client
Class MultiSelectionModel<T>

java.lang.Object
  com.google.gwt.view.client.SelectionModel.AbstractSelectionModel<T>
      com.google.gwt.view.client.MultiSelectionModel<T>

Type Parameters:

T - the record data type

All Implemented Interfaces:

HasHandlers, ProvidesKey<T>, SelectionChangeEvent.HasSelectionChangedHandlers, SelectionModel<T>

public class MultiSelectionModel<T>
extends SelectionModel.AbstractSelectionModel<T>

A simple selection model that allows multiple objects to be selected.

MultiSelectionModel

public MultiSelectionModel()

Constructs a MultiSelectionModel without a key provider.

MultiSelectionModel

public MultiSelectionModel(ProvidesKey<T> keyProvider)

Constructs a MultiSelectionModel with the given key provider.

Parameters:

keyProvider - an instance of ProvidesKey, or null if the record object should act as its own key

clear

public void clear()

Deselect all selected values.

getSelectedSet

public java.util.Set<T> getSelectedSet()

Get the set of selected items as a copy.

Returns:

the set of selected items

isSelected

public boolean isSelected(T object)

Description copied from interface: SelectionModel

Check if an object is selected.

Parameters:

object - the object

Returns:

true if selected, false if not

setSelected

public void setSelected(T object,
                        boolean selected)

Description copied from interface: SelectionModel

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

fireSelectionChangeEvent

protected void fireSelectionChangeEvent()

Description copied from class: SelectionModel.AbstractSelectionModel

Fire a SelectionChangeEvent. Multiple firings may be coalesced.

Overrides:

fireSelectionChangeEvent in class SelectionModel.AbstractSelectionModel<T>