Reservation entity - update changelog directory structure

src/main/java/com/zufar/onlinestore/reservation/dto/ReservationDto.java

@@ -5,18 +5,24 @@
 import jakarta.validation.constraints.NotNull;
 import jakarta.validation.constraints.Past;
 
-import java.time.LocalDateTime;
+import java.time.Instant;
 
 
 public record ReservationDto(
-        int reservationId,
-        @NotBlank(message = "Product ID is mandatory")
-        int productId,
-        @NotNull(message = "Reserved quantity is mandatory")
-        int reservedQuantity,
+        @NotNull(message = "ReservationId is the mandatory attribute")
+        Integer reservationId,
+
+        @NotBlank(message = "ProductId is the mandatory attribute")
+        String productId,
+
+        @NotNull(message = "ReservedQuantity is the mandatory attribute")
+        Integer reservedQuantity,
+
+        @NotNull(message = "CreatedAt is the mandatory attribute")
         @Past
-        LocalDateTime createdAt,
-        @NotBlank(message = "Status is mandatory")
+        Instant createdAt,
+
+        @NotBlank(message = "Status is the mandatory attribute")
         String status
 ) {
-}
+}

src/main/java/com/zufar/onlinestore/reservation/entity/Reservation.java

@@ -1,92 +1,63 @@
 package com.zufar.onlinestore.reservation.entity;
 
 import jakarta.persistence.*;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.jpa.domain.support.AuditingEntityListener;
 
-import java.time.LocalDateTime;
+import java.time.Instant;
 import java.util.Objects;
+import java.util.UUID;
 
 @Entity
 @EntityListeners(AuditingEntityListener.class)
 @Table(name = "reservation")
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
 public class Reservation {
 
     @Id
-    @GeneratedValue(strategy = GenerationType.UUID)
-    @Column(name = "reservation_id")
-    private String reservationId;
-    @Column(name = "product_id", nullable = false)
-    private String productId;
-    @Column(name = "reserved_quantity", nullable = false)
-    private int reservedQuantity;
-    @CreatedDate
-    @Column(name = "created_at", nullable = false, updatable = false)
-    private LocalDateTime createdAt;
-    @Column(name = "status", nullable = false)
-    private String status;
-
-    public Reservation() {
-    }
-
-    public Reservation(String productId, int reservedQuantity, LocalDateTime createdAt, String status) {
-        this.productId = productId;
-        this.reservedQuantity = reservedQuantity;
-        this.createdAt = createdAt;
-        this.status = status;
-    }
-
-    public String getReservationId() {
-        return reservationId;
-    }
-
-    public void setReservationId(String reservationId) {
-        this.reservationId = reservationId;
-    }
-
-    public String getProductId() {
-        return productId;
-    }
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id")
+    private Integer id;
 
-    public void setProductId(String productId) {
-        this.productId = productId;
-    }
+    @Column(name = "reservation_id", nullable = false)
+    private UUID reservationId;
 
-    public int getReservedQuantity() {
-        return reservedQuantity;
-    }
-
-    public void setReservedQuantity(int reservedQuantity) {
-        this.reservedQuantity = reservedQuantity;
-    }
-
-    public LocalDateTime getCreatedAt() {
-        return createdAt;
-    }
+    @Column(name = "product_id", nullable = false)
+    private UUID productId;
 
-    public void setCreatedAt(LocalDateTime createdAt) {
-        this.createdAt = createdAt;
-    }
+    @Column(name = "reserved_quantity", nullable = false)
+    private Integer reservedQuantity;
 
-    public String getStatus() {
-        return status;
-    }
+    @CreatedDate
+    @Column(name = "created_at", nullable = false, updatable = false)
+    private Instant createdAt;
 
-    public void setStatus(String status) {
-        this.status = status;
-    }
+    @Enumerated(EnumType.STRING)
+    @Column(name = "status", nullable = false)
+    private ReservationStatus status;
 
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
         if (o == null || getClass() != o.getClass()) return false;
         Reservation that = (Reservation) o;
-        return Objects.equals(reservationId, that.reservationId) && Objects.equals(productId, that.productId) && Objects.equals(createdAt, that.createdAt);
+        return reservationId.equals(that.reservationId) && productId.equals(that.productId);
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(reservationId, productId, createdAt);
+        return Objects.hash(reservationId, productId);
+    }
+
+    public enum ReservationStatus {
+        CREATED, CONFIRMED, CANCELLED
     }
 }
 

src/main/resources/db/changelog/version-1.0/22.07.2023.create-reservation-table.sql

@@ -0,0 +1,11 @@
+CREATE TYPE RESERVATION_STATUS AS ENUM ('CREATED', 'CONFIRMED', 'CANCELLED');
+
+CREATE TABLE IF NOT EXISTS reservation
+(
+    id                SERIAL PRIMARY KEY,
+    reservation_id    UUID NOT NULL,
+    product_id        UUID NOT NULL,
+    reserved_quantity INT NOT NULL CHECK (reserved_quantity > 0),
+    created_at        TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    status            RESERVATION_STATUS NOT NULL
+);