I used Builder pattern. This is Entity class.
@NoArgsConstructor(access = AccessLevel.PROTECTED)
@Getter
@Entity
public class Posts extends BaseTimeEntity{
@Id
@GeneratedValue
private Long id;
@Column(length = 500, nullable = false)
private String title;
@Column(columnDefinition = "TEXT", nullable = false)
private String content;
private String author;
@Builder
public Posts(String title, String content, String author) {
this.title = title;
this.content = content;
this.author = author;
}
}
And This is DTO.
@Getter
@Setter
@NoArgsConstructor
public class PostsSaveRequestDto {
private String title;
private String content;
private String author;
public Posts toEntity() {
return Posts.builder()
.title(title)
.content(content)
.author(author)
.build();
}
}
I want to make update(title) query.
This is update part in controller.(not work!)
@PostMapping("/posts/update-title/{id}/title")
public Posts updateTitle(@PathVariable long id, @PathVariable String title) {
Posts p = postsRepository.getOne(id);
p.builder().title(title).build();
return p;
}
Is the Builder Pattern not available when updating(CRUD) in a spring boot?
Can only be used to create objects(for constructor)?
So, how to make UPDATE, using builder pattern(@builder)?
