I am trying to set manufacture price code ,that value is in my map object but when I want to get getName() from map object I am not able to get that particular value. If I use

ipcToMFPNameMap.getClass().getName()

this line of code to get particular value I get "java.util.HashMap" in

my manufacture price code filed for your reference I post my code what I tried to get the particular result

private Item getItemManufacturerPriceCodes(Item item) {
          List<ItemPriceCode> itemPriceCodes = item.getItemPriceCodes();
          List<String> priceCodeList = new ArrayList<String>();
          for (ItemPriceCode ipc : itemPriceCodes) {
              //get the string value from the list
               priceCodeList.add(ipc.getPriceCode());
        }
          //pass this string value in query
          List<ManufacturerPriceCodes>mpc = manufacturerPriceCodesRepository.
                 findByManufacturerIDAndPriceCodeInAndRecordDeleted(item.getManufacturerID(),priceCodeList,NOT_DELETED);
          
          //Convert list to map
          Map<String, ManufacturerPriceCodes> ipcToMFPNameMap = mpc.stream().collect(
                    Collectors.toMap(ManufacturerPriceCodes :: getPriceCode,Function.identity()));// Object



         for (ItemPriceCode ipcs : itemPriceCodes) {
              ipcs.setManufacturerPriceCode(ipcToMFPNameMap.getClass().getName());
        }
          item.getItemPriceCodes()
          .removeIf(ipcs -> DELETED.equals(ipcs.getRecordDeleted()));
      return item;      
      }

I got this type of Result

But I want this this type of Result

I get issue exact at this point

ipcs.setManufacturerPriceCode(ipcToMFPNameMap.getClass().getName());

my manufacture price code is a string type

CodePudding user response：

Your Map contains ManufacturerPriceCodes objects keyed on their priceCode which is defined as a String. So you can get the name of an item in the Map as follows (where priceCode is a String).

String manufacturerPriceCodesName = ipcToMFPNameMap.get(priceCode).getName();

The ManufacturerPricesCodes appears to capture the price code as a String but Item has a List<ItemPriceCode>. You'll have to figure out how to map back and forth.

CodePudding user response：

Give more explanation.

1. In JSON file, is values bound to key priceCode and manufacturerPriceCode always equal?
2. What is the relationship between classes ItemPriceCodes and ManufacturerPriceCodes ?