- Type Parameters:
E- type of the values that are provided by this object
content provider for
AbstractListViewer that provides
elements of an
IObservableSet when set as the viewer's input. Objects
of this class listen for changes to the observable set, and will insert and
remove viewer elements to reflect observed changes.
- This class is not intended to be subclassed by clients.
Method SummaryModifier and TypeMethodDescription
dispose()Disposes of this content provider.
ObjectReturns the elements to display in the viewer when its input is set to the given element.Returns the set of elements known to this content provider.Returns the set of known elements which have been realized in the viewer.
voidNotifies this content provider that the given viewer's input has been switched to a different element.
ObservableSetContentProviderpublic ObservableSetContentProvider()Constructs an ObservableSetContentProvider. Must be called from the display thread.
ObservableSetContentProviderConstructs an ObservableSetContentProvider with the given viewer updater. Must be called from the display thread.
viewerUpdater- the viewer updater to use when elements are added or removed from the input observable set.
inputChangedDescription copied from interface:
IContentProviderNotifies this content provider that the given viewer's input has been switched to a different element.
A typical use for this method is registering the content provider as a listener to changes on the new input (using model-specific means), and deregistering the viewer from the old input. In response to these change notifications, the content provider should update the viewer (see the add, remove, update and refresh methods on the viewers).
The viewer should not be updated during this call, as it might be in the process of being disposed.
The default implementation does nothing.
getElementsDescription copied from interface:
IStructuredContentProviderReturns the elements to display in the viewer when its input is set to the given element. These elements can be presented as rows in a table, items in a list, etc. The result is not modified by the viewer.
disposepublic void dispose()Disposes of this content provider. This is called by the viewer when a content provider is replaced, or when the viewer itself is disposed.
The viewer should not be updated during this call, as it is in the process of being disposed.
Note: Data binding content providers become unusable on disposal.
getKnownElementsReturns the set of elements known to this content provider. Label providers may track this set if they need to be notified about additions before the viewer sees the added element, and notified about removals after the element was removed from the viewer. This is intended for use by label providers, as it will always return the items that need labels.
- unmodifiable set of items that will need labels
getRealizedElementsReturns the set of known elements which have been realized in the viewer. Clients may track this set in order to perform custom actions on elements while they are known to be present in the viewer.
- the set of known elements which have been realized in the viewer.