package de.glossmaker.bib.undo;

 import de.glossmaker.gui.bibtex.BibItemEvents;

 import de.glossmaker.undo.UndoStack;

 /**

  * 

  * @author Markus Flingelli

  *

  */

 public class UndoBibStack extends UndoStack<BibItemEvents> {

         private static UndoBibStack mInstance =  null;

         UndoBibStack() {

                 super();

         }

         public static  UndoBibStack getInstance() {

                 if (mInstance == null) {

                         mInstance = new UndoBibStack();

                 }

                 return mInstance;

         }

 }