Build base structure of mixed entities

src/main/java/run/halo/app/model/entity/BaseComment.java

+package run.halo.app.model.entity;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
+import org.hibernate.annotations.SQLDelete;
+import org.hibernate.annotations.Where;
+import run.halo.app.model.enums.CommentStatus;
+
+import javax.persistence.*;
+
+/**
+ * Base comment entity.
+ *
+ * @author johnniang
+ */
+@Entity(name = "BaseComment")
+@Table(name = "comments")
+@SQLDelete(sql = "update comments set deleted = true where id = ?")
+@Where(clause = "deleted = false")
+@DiscriminatorColumn(name = "type", discriminatorType = DiscriminatorType.INTEGER, columnDefinition = "int default 0")
+@Data
+@ToString(callSuper = true)
+@EqualsAndHashCode(callSuper = true)
+public class BaseComment extends BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    /**
+     * Commentator's name.
+     */
+    @Column(name = "author", columnDefinition = "varchar(50) not null")
+    private String author;
+
+    /**
+     * Commentator's email.
+     */
+    @Column(name = "email", columnDefinition = "varchar(255) not null")
+    private String email;
+
+    /**
+     * Commentator's ip address.
+     */
+    @Column(name = "ip_address", columnDefinition = "varchar(127) default ''")
+    private String ipAddress;
+
+    /**
+     * Commentator's website.
+     */
+    @Column(name = "author_url", columnDefinition = "varchar(512) default ''")
+    private String authorUrl;
+
+    /**
+     * Gavatar md5
+     */
+    @Column(name = "gavatar_md5", columnDefinition = "varchar(128) default ''")
+    private String gavatarMd5;
+
+    /**
+     * Comment content.
+     */
+    @Column(name = "content", columnDefinition = "varchar(1023) not null")
+    private String content;
+
+    /**
+     * Comment status.
+     */
+    @Column(name = "status", columnDefinition = "int default 1")
+    private CommentStatus status;
+
+    /**
+     * Commentator's userAgent.
+     */
+    @Column(name = "user_agent", columnDefinition = "varchar(512) default ''")
+    private String userAgent;
+
+    /**
+     * Is admin's comment.
+     */
+    @Column(name = "is_admin", columnDefinition = "tinyint default 0")
+    private Boolean isAdmin;
+
+    /**
+     * Post id.
+     */
+    @Column(name = "post_id", columnDefinition = "int not null")
+    private Integer postId;
+
+    /**
+     * Whether to top the comment.
+     */
+    @Column(name = "top_priority", columnDefinition = "int default 0")
+    private Integer topPriority;
+
+    /**
+     * Parent comment.
+     */
+    @Column(name = "parent_id", columnDefinition = "bigint default 0")
+    private Long parentId;
+
+    @Override
+    public void prePersist() {
+        super.prePersist();
+        id = null;
+
+        if (parentId == null || parentId < 0) {
+            parentId = 0L;
+        }
+
+        if (ipAddress == null) {
+            ipAddress = "";
+        }
+
+        if (authorUrl == null) {
+            authorUrl = "";
+        }
+
+        if (gavatarMd5 == null) {
+            gavatarMd5 = "";
+        }
+
+        if (status == null) {
+            status = CommentStatus.AUDITING;
+        }
+
+        if (userAgent == null) {
+            userAgent = "";
+        }
+
+        if (isAdmin == null) {
+            isAdmin = false;
+        }
+
+    }
+
+}

src/main/java/run/halo/app/model/entity/BasePost.java

@@ -17,13 +17,13 @@ import java.util.Date;
  *
  * @author johnniang
  */
-@Entity(name = "base_post")
+@Entity(name = "BasePost")
 @Table(name = "posts", indexes = @Index(columnList = "url"))
 @SQLDelete(sql = "update posts set deleted = true where id = ?")
 @Where(clause = "deleted = false")
 @DiscriminatorColumn(name = "type", discriminatorType = DiscriminatorType.INTEGER, columnDefinition = "int default 0")
 @Data
-@ToString
+@ToString(callSuper = true)
 @EqualsAndHashCode(callSuper = true)
 public class BasePost extends BaseEntity {
 

src/main/java/run/halo/app/model/entity/Comment.java

 package run.halo.app.model.entity;
 
-import run.halo.app.model.enums.CommentStatus;
-import lombok.Data;
-import lombok.EqualsAndHashCode;
-import lombok.ToString;
-import org.hibernate.annotations.SQLDelete;
-import org.hibernate.annotations.Where;
-
-import javax.persistence.*;
+import javax.persistence.DiscriminatorValue;
+import javax.persistence.Entity;
 
 /**
  * Comment entity.
  *
  * @author johnniang
  */
-@Entity
-@Table(name = "comments")
-@SQLDelete(sql = "update comments set deleted = true where id = ?")
-@Where(clause = "deleted = false")
-@Data
-@ToString
-@EqualsAndHashCode(callSuper = true)
-public class Comment extends BaseEntity {
-
-    @Id
-    @GeneratedValue(strategy = GenerationType.IDENTITY)
-    private Long id;
-
-    /**
-     * Commentator's name.
-     */
-    @Column(name = "author", columnDefinition = "varchar(50) not null")
-    private String author;
-
-    /**
-     * Commentator's email.
-     */
-    @Column(name = "email", columnDefinition = "varchar(255) not null")
-    private String email;
-
-    /**
-     * Commentator's ip address.
-     */
-    @Column(name = "ip_address", columnDefinition = "varchar(127) default ''")
-    private String ipAddress;
-
-    /**
-     * Commentator's website.
-     */
-    @Column(name = "author_url", columnDefinition = "varchar(512) default ''")
-    private String authorUrl;
-
-    /**
-     * Gavatar md5
-     */
-    @Column(name = "gavatar_md5", columnDefinition = "varchar(128) default ''")
-    private String gavatarMd5;
-
-    /**
-     * Comment content.
-     */
-    @Column(name = "content", columnDefinition = "varchar(1023) not null")
-    private String content;
-
-    /**
-     * Comment status.
-     */
-    @Column(name = "status", columnDefinition = "int default 1")
-    private CommentStatus status;
-
-    /**
-     * Commentator's userAgent.
-     */
-    @Column(name = "user_agent", columnDefinition = "varchar(512) default ''")
-    private String userAgent;
-
-    /**
-     * Is admin's comment.
-     */
-    @Column(name = "is_admin", columnDefinition = "tinyint default 0")
-    private Boolean isAdmin;
-
-    /**
-     * Post id.
-     */
-    @Column(name = "post_id", columnDefinition = "int not null")
-    private Integer postId;
-
-    /**
-     * Whether to top the comment.
-     */
-    @Column(name = "top_priority", columnDefinition = "int default 0")
-    private Integer topPriority;
-
-    /**
-     * Parent comment.
-     */
-    @Column(name = "parent_id", columnDefinition = "bigint default 0")
-    private Long parentId;
-
-    @Override
-    public void prePersist() {
-        super.prePersist();
-        id = null;
-
-        if (parentId == null || parentId < 0) {
-            parentId = 0L;
-        }
-
-        if (ipAddress == null) {
-            ipAddress = "";
-        }
-
-        if (authorUrl == null) {
-            authorUrl = "";
-        }
-
-        if (gavatarMd5 == null) {
-            gavatarMd5 = "";
-        }
-
-        if (status == null) {
-            status = CommentStatus.AUDITING;
-        }
-
-        if (userAgent == null) {
-            userAgent = "";
-        }
-
-        if (isAdmin == null) {
-            isAdmin = false;
-        }
-
-    }
+@Entity(name = "Comment")
+@DiscriminatorValue("0")
+public class Comment extends BaseComment {
 
 }

src/main/java/run/halo/app/model/entity/Journal.java

@@ -11,6 +11,6 @@ import javax.persistence.Entity;
  */
 @Entity(name = "Journal")
 @DiscriminatorValue("2")
-public class Journal extends BasePost {
+public class Journal extends BaseComment {
 
 }

src/main/java/run/halo/app/model/entity/SheetComment.java

+package run.halo.app.model.entity;
+
+import javax.persistence.DiscriminatorValue;
+import javax.persistence.Entity;
+
+/**
+ * Sheet comment.
+ *
+ * @author johnniang
+ * @date 19-4-24
+ */
+@Entity(name = "SheetComment")
+@DiscriminatorValue("1")
+public class SheetComment extends BaseComment {
+
+}

src/main/java/run/halo/app/repository/CommentRepository.java

 package run.halo.app.repository;
 
-import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
-import run.halo.app.model.entity.Comment;
-import run.halo.app.model.enums.CommentStatus;
-import run.halo.app.model.projection.CommentCountProjection;
-import run.halo.app.repository.base.BaseRepository;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.lang.NonNull;
-import org.springframework.lang.Nullable;
+import run.halo.app.model.entity.Comment;
+import run.halo.app.model.enums.CommentStatus;
+import run.halo.app.model.projection.CommentCountProjection;
+import run.halo.app.repository.base.BaseCommentRepository;
 
 import java.util.List;
 
@@ -19,17 +17,7 @@ import java.util.List;
  * @author johnniang
  * @date 3/21/19
  */
-public interface CommentRepository extends BaseRepository<Comment, Long>, JpaSpecificationExecutor<Comment> {
-
-    /**
-     * Finds all comments by status.
-     *
-     * @param status   status must not be null
-     * @param pageable page info must not be null
-     * @return a page of comment
-     */
-    @NonNull
-    Page<Comment> findAllByStatus(@Nullable CommentStatus status, @NonNull Pageable pageable);
+public interface CommentRepository extends BaseCommentRepository<Comment> {
 
     /**
      * Finds all comments by post ids.

src/main/java/run/halo/app/repository/JournalRepository.java

 package run.halo.app.repository;
 
 import run.halo.app.model.entity.Journal;
-import run.halo.app.repository.base.BasePostRepository;
-import run.halo.app.repository.base.BasePostRepository;
+import run.halo.app.repository.base.BaseCommentRepository;
 
 /**
  * Journal repository.
@@ -10,6 +9,6 @@ import run.halo.app.repository.base.BasePostRepository;
  * @author johnniang
  * @date 3/22/19
  */
-public interface JournalRepository extends BasePostRepository<Journal> {
+public interface JournalRepository extends BaseCommentRepository<Journal> {
 
 }

src/main/java/run/halo/app/repository/SheetCommentRepository.java

+package run.halo.app.repository;
+
+import run.halo.app.model.entity.SheetComment;
+import run.halo.app.repository.base.BaseCommentRepository;
+
+/**
+ * Sheet comment repository.
+ *
+ * @author johnniang
+ * @date 19-4-24
+ */
+public interface SheetCommentRepository extends BaseCommentRepository<SheetComment> {
+
+}

src/main/java/run/halo/app/repository/SheetRepository.java

@@ -4,7 +4,7 @@ import run.halo.app.model.entity.Sheet;
 import run.halo.app.repository.base.BasePostRepository;
 
 /**
- * Page repository.
+ * Sheet repository.
  *
  * @author johnniang
  * @date 3/22/19

src/main/java/run/halo/app/repository/base/BaseCommentRepository.java

+package run.halo.app.repository.base;
+
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
+import org.springframework.lang.NonNull;
+import org.springframework.lang.Nullable;
+import run.halo.app.model.entity.BaseComment;
+import run.halo.app.model.enums.CommentStatus;
+
+/**
+ * Base comment repository.
+ *
+ * @author johnniang
+ * @date 19-4-24
+ */
+public interface BaseCommentRepository<DOMAIN extends BaseComment> extends BaseRepository<DOMAIN, Long>, JpaSpecificationExecutor<DOMAIN> {
+
+    /**
+     * Finds all comments by status.
+     *
+     * @param status   status must not be null
+     * @param pageable page info must not be null
+     * @return a page of comment
+     */
+    @NonNull
+    Page<DOMAIN> findAllByStatus(@Nullable CommentStatus status, @NonNull Pageable pageable);
+
+
+}

src/main/java/run/halo/app/service/JournalService.java

+package run.halo.app.service;
+
+import run.halo.app.model.entity.Journal;
+import run.halo.app.service.base.CrudService;
+
+/**
+ * Journal service interface.
+ *
+ * @author johnniang
+ * @date 19-4-24
+ */
+public interface JournalService extends CrudService<Journal, Long> {
+}

src/main/java/run/halo/app/service/SheetCommentService.java

+package run.halo.app.service;
+
+import run.halo.app.model.entity.SheetComment;
+import run.halo.app.service.base.CrudService;
+
+/**
+ * Sheet comment service interface.
+ *
+ * @author johnniang
+ * @date 19-4-24
+ */
+public interface SheetCommentService extends CrudService<SheetComment, Long> {
+
+}

src/main/java/run/halo/app/service/SheetService.java

+package run.halo.app.service;
+
+import run.halo.app.model.entity.Sheet;
+import run.halo.app.service.base.CrudService;
+
+/**
+ * Sheet service interface.
+ *
+ * @author johnniang
+ * @date 19-4-24
+ */
+public interface SheetService extends CrudService<Sheet, Integer> {
+
+}