Class ShoppingItemDTO

java.lang.Object

com.goldenleaf.shop.dto.ShoppingItemDTO

public class ShoppingItemDTO
extends Object

Data Transfer Object representing a single item in the shopping cart.

Used exclusively in ShoppingCartDTO responses. Contains read-only data about the product and its current state in the cart.

Important security rules:

• All price-related fields are calculated server-side — never trust client input
• Quantity is validated against stock during add/update operations
• This DTO is output-only — never used for input from client

Since:

1.0

Constructor Summary

Constructors

Constructor	Description
ShoppingItemDTO()	Required for JSON deserialization
ShoppingItemDTO(Long id, Long productId, String productName, int quantity, double pricePerUnit)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
Long	getId()
double	getPricePerUnit()
Long	getProductId()
String	getProductName()
int	getQuantity()
double	getSubtotal()	Calculates subtotal for this item.
int	hashCode()
void	setId(Long id)
void	setPricePerUnit(double pricePerUnit)
void	setProductId(Long productId)
void	setProductName(String productName)
void	setQuantity(int quantity)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

ShoppingItemDTO

public ShoppingItemDTO()

Required for JSON deserialization

ShoppingItemDTO

public ShoppingItemDTO(Long id,
 Long productId,
 String productName,
 int quantity,
 double pricePerUnit)

Method Details

getId

public Long getId()

setId

public void setId(Long id)

getProductId

public Long getProductId()

setProductId

public void setProductId(Long productId)

getProductName

public String getProductName()

setProductName

public void setProductName(String productName)

getQuantity

public int getQuantity()

setQuantity

public void setQuantity(int quantity)

getPricePerUnit

public double getPricePerUnit()

setPricePerUnit

public void setPricePerUnit(double pricePerUnit)

getSubtotal

public double getSubtotal()

Calculates subtotal for this item. Convenience method for frontend or logging.

Returns:

quantity × pricePerUnit, rounded to 2 decimal places

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object