Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Programming
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Databases
Mail Systems
openSolaris
Eclipse Documentation
Techotopia.com
Virtuatopia.com

How To Guides
Virtualization
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Windows
Problem Solutions
Privacy Policy

  




 

 


Eclipse Platform
Release 3.5

org.eclipse.core.commands.operations
Interface IUndoContext

All Known Implementing Classes:
ObjectUndoContext, UndoContext

public interface IUndoContext

An undo context is used to "tag" operations as being applicable to a certain context. The undo context is used to filter the history of operations available for undo or redo so that only operations appropriate for a given undo context are shown when the application is presenting that context.

The scope of an undo context is defined by the application that is making undo and redo of operations available. Undo contexts may be related to application models, or may be associated with UI objects that are providing undo and redo support.

An undo context may be defined as "matching" another context. This allows applications to provide specialized implementations of an undo context that will appear in the operation history for their matching context.

Since:
3.1

Method Summary
  String getLabel ()
          Get the label that describes the undo context.
 boolean matches ( IUndoContext context)
          Return whether the specified context is considered a match for the receiving context.
 

Method Detail

getLabel

String getLabel()
Get the label that describes the undo context.

Returns:
the label for the context.

matches

boolean matches(
IUndoContext context)
Return whether the specified context is considered a match for the receiving context. When a context matches another context, operations that have the context are considered to also have the matching context.

Parameters:
context - the context to be checked against the receiving context.
Returns:
true if the receiving context can be considered a match for the specified context, and false if it cannot.

Eclipse Platform
Release 3.5

Guidelines for using Eclipse APIs.

Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.


 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire