public Pair<String,String> objectToString(final long shopId,final String currency,final BigDecimal regularPrice){
  return new Pair<String,String>("facet_price_" + shopId + "_"+ currency,moneyBridge.objectToString(regularPrice));
}

public Pair < String , String > objectToString ( final long shopId , final String currency , final BigDecimal regularPrice ) { return new Pair < String , String > ( "facet_price_" + shopId + "_" + currency , moneyBridge . objectToString ( regularPrice ) ) ; }
create index value for given shop currency and price .
