/**
  * Post changes.
  *
  * @param transactionEvent the transaction event
  */
 public void postChanges(TransactionEvent transactionEvent) {
   if (getPostState() == STATUS_NEW || getPostState() == STATUS_MODIFIED) {
     DocumentAndLinkEOImpl resources = getDocumentAndLinkEO();
     if (null != resources) {
       if (resources.getPostState() == STATUS_NEW) {
         resources.postChanges(transactionEvent);
       }
     }
     newGroupDetail = (RowSet) getSendToGroupDetailEO();
   }
   super.postChanges(transactionEvent);
 }