public void add(final Banks bank,final Entity entity){
  final List<Entity> bankAccess=getListAddingUnknownBanks(bank);
  if (!bankAccess.contains(entity)) {
    bankAccess.add(entity);
  }
}

public void add ( final Banks bank , final Entity entity ) { final List < Entity > bankAccess = getListAddingUnknownBanks ( bank ) ; if ( ! bankAccess . contains ( entity ) ) { bankAccess . add ( entity ) ; } }
adds an accessor for this bank .
