persistant entities should not used as arguements of "@Requestmapping" methods

import javax.persistence.Entity;

@Entity
public class Wish {
  Long productId;
  Long quantity;
  Client client;
}

@Entity
public class Client {
  String clientId;
  String name;
  String password;
}

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class WishListController {

  @PostMapping(path = "/saveForLater")
  public String saveForLater(Wish wish) {
    session.save(wish);
  }

  @RequestMapping(path = "/saveForLater", method = RequestMethod.POST)
  public String saveForLater(Wish wish) {
    session.save(wish);
  }
}

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Graeme Pyle 90 points

                                    public class WishDTO {
  Long productId;
  Long quantity;
  Long clientId;
}

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class PurchaseOrderController {

  @PostMapping(path = &quot;/saveForLater&quot;)
  public String saveForLater(WishDTO wish) {
    Wish persistentWish = new Wish();
    // do the mapping between &quot;wish&quot; and &quot;persistentWish&quot;
    [...]
    session.save(persistentWish);
  }

  @RequestMapping(path = &quot;/saveForLater&quot;, method = RequestMethod.POST)
  public String saveForLater(WishDTO wish) {
    Wish persistentWish = new Wish();
    // do the mapping between &quot;wish&quot; and &quot;persistentWish&quot;
    [...]
    session.save(persistentWish);
  }
}

Thank you! 4