public ArrayList<DispenserEnterprise> searchDispEnterprise() {
   dispEntList = new ArrayList<DispenserEnterprise>();
   for (Enterprise e : enterpriseList) {
     if (e.getType().equalsIgnoreCase((Enterprise.DISPENSER))) {
       dispEntList.add((DispenserEnterprise) e);
     }
   }
   return dispEntList;
 }
 public ArrayList<WholesalerEnterprise> searchWholeEnterprise() {
   wholeEntList = new ArrayList<WholesalerEnterprise>();
   for (Enterprise e : enterpriseList) {
     if (e.getType().equalsIgnoreCase((Enterprise.WHOLESALER))) {
       wholeEntList.add((WholesalerEnterprise) e);
     }
   }
   return wholeEntList;
 }
 public ArrayList<ManufacturerEnterprise> searchManuEnterprise() {
   manuEntList = new ArrayList<ManufacturerEnterprise>();
   for (Enterprise e : enterpriseList) {
     if (e.getType().equalsIgnoreCase((Enterprise.MANUFACTURER))) {
       manuEntList.add((ManufacturerEnterprise) e);
     }
   }
   return manuEntList;
 }