org.eclipse.emf.edit.ui.provider

Class AdapterFactoryContentProvider.ViewerRefresh

java.lang.Object

org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider.ViewerRefresh

All Implemented Interfaces:

java.lang.Runnable

Enclosing class:

AdapterFactoryContentProvider

public static class AdapterFactoryContentProvider.ViewerRefresh
extends java.lang.Object
implements java.lang.Runnable

A runnable class that efficiently updates a org.eclipse.jface.viewers.Viewer via standard APIs, based on queued IViewerNotifications from the model's item providers.

Constructor Summary

Constructors

Constructor and Description
AdapterFactoryContentProvider.ViewerRefresh(Viewer viewer)
AdapterFactoryContentProvider.ViewerRefresh(Viewer viewer, IViewerNotification notification) Deprecated. in 2.2.0

Method Summary

Methods

Modifier and Type	Method and Description
boolean	addNotification(IViewerNotification notification) Adds a viewer notification to the queue that will be processed by this ViewerRefresh.
protected IViewerNotification	merge(IViewerNotification n1, IViewerNotification n2) Compares two notifications and, if duplicative, returns a single notification that does the work of both.
protected void	refresh(IViewerNotification notification)
void	run()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AdapterFactoryContentProvider.ViewerRefresh

public AdapterFactoryContentProvider.ViewerRefresh(Viewer viewer)

Since:

2.2.0

AdapterFactoryContentProvider.ViewerRefresh

@Deprecated
public AdapterFactoryContentProvider.ViewerRefresh(Viewer viewer,
                                                      IViewerNotification notification)

Deprecated. in 2.2.0

Method Detail

addNotification

public boolean addNotification(IViewerNotification notification)

Adds a viewer notification to the queue that will be processed by this ViewerRefresh. Duplicative notifications will not be queued.

Parameters:

notification - the notification to add to the queue

Returns:

whether the queue has been made non-empty, which would indicate that the ViewerRefresh needs to be scheduled on the event queue

Since:

2.2.0

merge

protected IViewerNotification merge(IViewerNotification n1,
                        IViewerNotification n2)

Compares two notifications and, if duplicative, returns a single notification that does the work of both. Note: this gives priority to a content refresh on the whole viewer over a content refresh or label update on a specific element; however, it doesn't use parent-child relationships to determine if refreshes on non-equal elements are duplicative.

Returns:

a single notification that is equivalent to the two parameters, or null if they are non-duplicative

Since:

2.2.0

run

public void run()

Specified by:

run in interface java.lang.Runnable

refresh

protected void refresh(IViewerNotification notification)

Since:

2.2.0