feat: follow entity 구현

src/main/java/com/codeit/todo/domain/Follow.java

@@ -0,0 +1,33 @@
+package com.codeit.todo.domain;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Follow {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name="follow_id")
+    private int followId;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "follower_id", nullable = false)
+    private User follower;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "followee_id", nullable = false)
+    private User followee;
+
+    @Builder
+    public Follow(User follower, User followee){
+        this.follower = follower;
+        this.followee = followee;
+    }
+
+
+}

src/main/java/com/codeit/todo/domain/User.java

@@ -6,6 +6,9 @@
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
+import java.util.ArrayList;
+import java.util.List;
+
 @Entity
 @Getter
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
@@ -28,6 +31,13 @@ public class User {
     @Column(name = "profile_pic", nullable = false)
     private String profilePic;
 
+    //나를 팔로우 하는 사람들
+    @OneToMany(mappedBy = "followee", cascade = CascadeType.REMOVE, orphanRemoval = true)
+    private List<Follow> followers = new ArrayList<>();
+
+    //내가 팔로우 하는 사람들
+    @OneToMany(mappedBy = "follower", cascade = CascadeType.REMOVE, orphanRemoval = true)
+    private List<Follow> followees = new ArrayList<>();
 
     @Builder
     public User(int userId, String name, String email, String password, String profilePic) {