SelectionModel (GWT Javadoc)

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

All Methods Instance Methods Abstract Methods
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 Detail
  - 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