Action for abandoning changes made in the text editor since the last save
operation. The action is initially associated with a text editor via the
constructor, but that can be subsequently changed using setEditor.
This class may be instantiated; it is not intended to be subclassed.
Creates a new action for the given text editor. The action configures its
visual representation from the given resource bundle.
Parameters: bundle - the resource bundle Parameters: prefix - a prefix to be prepended to the various resource keys(described in ResourceAction constructor), ornull if none Parameters: editor - the text editor See Also:TextEditorAction.TextEditorAction(ResourceBundleStringITextEditor)