Changed folder structure

src/main/java/com/faf223/expensetrackerfaf/model/Categories.java

@@ -1,3 +1,4 @@
+
 package com.faf223.expensetrackerfaf.model;
 
 public class Categories {

src/main/java/com/faf223/expensetrackerfaf/model/Expense.java

@@ -1,26 +1,43 @@
+
 package com.faf223.expensetrackerfaf.model;
-
 import com.faf223.expensetrackerfaf.util.IMoneyTransaction;
+import jakarta.persistence.*;
 
+@Entity
+@Table(name = "expense")
 public class Expense implements IMoneyTransaction {
 
-    private int userId;
+    @Id
+    @Column(name = "id")
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private long id;
+
+    @ManyToOne
+    @JoinColumn(name = "user_id", referencedColumnName = "id")
+    private User user;
     private int amount;
     private Categories.ExpenseCategory category;
 
-    public Expense(int userId, int amount, Categories.ExpenseCategory category) {
-        this.userId = userId;
+    public Expense(User user, int amount, Categories.ExpenseCategory category) {
+        this.user = user;
         this.amount = amount;
         this.category = category;
     }
 
+    public Expense() {}
+
     @Override
-    public long getUserId() {
-        return userId;
+    public User getUser() {
+        return user;
     }
 
     public void setUserId(int userId) {
-        this.userId = userId;
+        this.user = user;
+    }
+
+    @Override
+    public long getUserId() {
+        return 0;
     }
 
     @Override

src/main/java/com/faf223/expensetrackerfaf/model/Income.java

@@ -1,22 +1,39 @@
 package com.faf223.expensetrackerfaf.model;
 
 import com.faf223.expensetrackerfaf.util.IMoneyTransaction;
+import jakarta.persistence.*;
 
+@Entity
+@Table(name = "income")
 public class Income implements IMoneyTransaction {
 
-    private long userId;
+    @Id
+    @Column(name = "id")
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private long id;
+
+    @ManyToOne
+    @JoinColumn(name = "user_id", referencedColumnName = "id")
+    private User user;
     private int amount;
     private Categories.IncomeCategory category;
 
-    public Income(long userId, int amount, Categories.IncomeCategory category) {
-        this.userId = userId;
+    public Income(User user, int amount, Categories.IncomeCategory category) {
+        this.user = user;
         this.amount = amount;
         this.category = category;
     }
 
+    public Income() {}
+
+    @Override
+    public User getUser() {
+        return user;
+    }
+
     @Override
     public long getUserId() {
-        return userId;
+        return 0;
     }
 
     @Override
@@ -29,8 +46,8 @@ public class Income implements IMoneyTransaction {
         return category.getEffectiveName();
     }
 
-    public void setUserId(long userId) {
-        this.userId = userId;
+    public void setUserId(User user) {
+        this.user = user;
     }
 
     public void setAmount(int amount) {

src/main/java/com/faf223/expensetrackerfaf/model/Role.java

@@ -1,7 +1,6 @@
+
 package com.faf223.expensetrackerfaf.model;
 
 public enum Role {
-
     UNREGISTERED, REGISTERED, ADMIN;
-
 }

src/main/java/com/faf223/expensetrackerfaf/model/User.java

@@ -1,12 +1,25 @@
+
 package com.faf223.expensetrackerfaf.model;
+import jakarta.persistence.*;
 
 import java.util.List;
 
+@Entity
+@Table(name = "User")
 public class User {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
     private long id;
-    private String name, email, login, password;
+    private String name;
+    private String email;
+    private String login;
+    private String password;
     private Role role;
+
+    @OneToMany(mappedBy = "user")
     private List<Expense> expenses;
+
+    @OneToMany(mappedBy = "user")
     private List<Income> incomes;
 
     public User(long id, String name, String email, String login, String password, Role role, List<Expense> expenses, List<Income> incomes) {