update CommentEntity - equals, hashcode

Create CommentRepository

CreateCommentDto, and CommentDto

Author: fredrikmohlen

src/main/java/demo/codeexample/comment/CommentDto.java

@@ -0,0 +1,19 @@
+package demo.codeexample.comment;
+
+import lombok.Data;
+
+import java.time.LocalDateTime;
+
+@Data
+public class CommentDto {
+
+    private Long id;
+
+    private String content;
+
+    private Long writerId;
+
+    private LocalDateTime createdAt;
+
+
+}

src/main/java/demo/codeexample/comment/CommentEntity.java

@@ -6,8 +6,10 @@
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.Setter;
+import org.hibernate.proxy.HibernateProxy;
 
 import java.time.LocalDateTime;
+import java.util.Objects;
 
 @Getter
 @Setter
@@ -40,5 +42,26 @@ protected void onCreate() {
         this.createdAt = LocalDateTime.now();
     }
 
+    public  CommentEntity(String content, Long writerId,TaskEntity task, LocalDateTime createdAt) {
+        this.content = content;
+        this.writerId = writerId;
+        this.task = task;
+        this.createdAt = createdAt;
+    }
+
+    @Override
+    public final boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null) return false;
+        Class<?> oEffectiveClass = o instanceof HibernateProxy ? ((HibernateProxy) o).getHibernateLazyInitializer().getPersistentClass() : o.getClass();
+        Class<?> thisEffectiveClass = this instanceof HibernateProxy ? ((HibernateProxy) this).getHibernateLazyInitializer().getPersistentClass() : this.getClass();
+        if (thisEffectiveClass != oEffectiveClass) return false;
+        CommentEntity that = (CommentEntity) o;
+        return getId() != null && Objects.equals(getId(), that.getId());
+    }
 
+    @Override
+    public final int hashCode() {
+        return this instanceof HibernateProxy ? ((HibernateProxy) this).getHibernateLazyInitializer().getPersistentClass().hashCode() : getClass().hashCode();
+    }
 }

src/main/java/demo/codeexample/comment/CommentRepository.java

@@ -0,0 +1,6 @@
+package demo.codeexample.comment;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface CommentRepository extends JpaRepository<CommentEntity, Long> {
+}

src/main/java/demo/codeexample/comment/CreateCommentDto.java

@@ -0,0 +1,14 @@
+package demo.codeexample.comment;
+
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.Size;
+import lombok.Data;
+
+@Data
+public class CreateCommentDto {
+
+    @NotBlank(message = "Comment can't be empty.")
+    @Size(max = 300, message = "Can't be more than 300 characters.")
+    private String content;
+
+}