How are order line items exposed? - spring-data-rest

Question

In the restbucks project, an order has a private list of line items. I can't figure out how this field is exposed via rest api when getting a single order. It has no public getter or anything. Is it the mixins?

Answer 1

#Data, #NoArgsConstructor, #AllArgsConstructor, #EqualsAndHashCode are Lombok annotations, that are used to auto-generate a boilerplate code.
#Data
#Entity
#NoArgsConstructor(force = true)
#AllArgsConstructor
#EqualsAndHashCode(callSuper = false)
public class LineItem extends AbstractEntity {
private final String name;
private final int quantity;
private final Milk milk;
private final Size size;
private final MonetaryAmount price;
public LineItem(String name, MonetaryAmount price) {
this(name, 1, Milk.SEMI, Size.LARGE, price);
}
}
You can compare this code with delomboked one (welcome to Lombok-funs club )):
#Entity
public class LineItem extends AbstractEntity {
private final String name;
private final int quantity;
private final Milk milk;
private final Size size;
private final MonetaryAmount price;
public LineItem(String name, MonetaryAmount price) {
this(name, 1, Milk.SEMI, Size.LARGE, price);
}
public LineItem(String name, int quantity, Milk milk, Size size, MonetaryAmount price) {
this.name = name;
this.quantity = quantity;
this.milk = milk;
this.size = size;
this.price = price;
}
public LineItem() {
this.name = null;
this.quantity = 0;
this.milk = null;
this.size = null;
this.price = null;
}
public String getName() {
return this.name;
}
public int getQuantity() {
return this.quantity;
}
public Milk getMilk() {
return this.milk;
}
public Size getSize() {
return this.size;
}
public MonetaryAmount getPrice() {
return this.price;
}
public String toString() {
return "LineItem(name=" + this.getName() + ", quantity=" + this.getQuantity() + ", milk=" + this.getMilk() + ", size=" + this.getSize() + ", price=" + this.getPrice() + ")";
}
public boolean equals(Object o) {
if (o == this) return true;
if (!(o instanceof LineItem)) return false;
final LineItem other = (LineItem) o;
if (!other.canEqual((Object) this)) return false;
final Object this$name = this.getName();
final Object other$name = other.getName();
if (this$name == null ? other$name != null : !this$name.equals(other$name)) return false;
if (this.getQuantity() != other.getQuantity()) return false;
final Object this$milk = this.getMilk();
final Object other$milk = other.getMilk();
if (this$milk == null ? other$milk != null : !this$milk.equals(other$milk)) return false;
final Object this$size = this.getSize();
final Object other$size = other.getSize();
if (this$size == null ? other$size != null : !this$size.equals(other$size)) return false;
final Object this$price = this.getPrice();
final Object other$price = other.getPrice();
if (this$price == null ? other$price != null : !this$price.equals(other$price)) return false;
return true;
}
public int hashCode() {
final int PRIME = 59;
int result = 1;
final Object $name = this.getName();
result = result * PRIME + ($name == null ? 43 : $name.hashCode());
result = result * PRIME + this.getQuantity();
final Object $milk = this.getMilk();
result = result * PRIME + ($milk == null ? 43 : $milk.hashCode());
final Object $size = this.getSize();
result = result * PRIME + ($size == null ? 43 : $size.hashCode());
final Object $price = this.getPrice();
result = result * PRIME + ($price == null ? 43 : $price.hashCode());
return result;
}
protected boolean canEqual(Object other) {
return other instanceof LineItem;
}
}