package org.kuali.ole.utility.callnumber;
   
   /**
    * Created with IntelliJ IDEA.
    * User: Pranitha J
    * Date: 7/3/13
    * Time: 12:34 PM
    * To change this template use File | Settings | File Templates.
    */
  public class OtherCallNumber extends AbstractCallNumber implements CallNumber {
  
      private static OtherCallNumber ourInstance = null;
  
      public static OtherCallNumber getInstance() {
          if (null == ourInstance) {
              ourInstance = new OtherCallNumber();
          }
          return ourInstance;
      }
  
      public String getSortableKey(String callNumber) {
          String normalizedCallNumber = CallNumUtils.getSuDocShelfKey(callNumber);
          return normalizedCallNumber;
      }
  
      public boolean isValid(String callNumber) {
          return false;
      }
  }