在实体上使用lomboks @Data和@Builder [英] Using lomboks @Data and @Builder on entity

问题描述

我使用以下内容：

@Entity
@Data
@Builder
@NoArgsConstructor(force = true)
public class User {
    private String id;
    private String firstName;
    private String lastName;
}

我想要实现的目标：对于JPA用法，我需要一个带有noArgConstructor的POJO ，getters / setters和equals / hashCode / toString。

what I want to achieve: for JPA usage, I need a POJO with noArgConstructor, getters/setters and equals/hashCode/toString.

例如创建（例如在测试中）我想使用User.builder（）。build（）;

For instance creation (for example in tests) I want to use User.builder().build();

问题：它没有编译，NoArgConstructor与RequiredFieldsConstructor似乎存在问题：

Problem: it does not compile, there seems to be an issue with the NoArgConstructor vs. RequiredFieldsConstructor:

Error:(15, 1) java: constructor User in class x.y.z.User cannot be applied to given types;
required: no arguments
found:    java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String
reason: actual and formal argument lists differ in length

更新：当我尝试创建一个错误时发生错误新实体通过 new ...构建器（）工作。

Update: The error occurs when I try to create a new entity via new ... the builder() works.

我想念什么？是不是可以同时使用@ Data，@ Entity和@Builder？

What do I miss? Isn't it possible to use @Data, @Entity and @Builder at the same time?

推荐答案

我会自己回答通过总结评论来提问。

I will answer my own question by summerizing the comments.

首先，感谢@RoelSpilker，如果明确提供AllArgs-和NoArgs-构造函数，可以在一个Pojo上同时使用Builder和Data ：

First of all, thanks to @RoelSpilker, you can use Builder and Data together on one Pojo if you explicitly provide AllArgs- and NoArgs- constructors:

 @RequiredArgsConstructor
 @NoArgsConstructor
 @Data
 @Builder
 public class Person {...}

但是：为此类创建的构建器不会知道任何继承的字段。对于我的用例（有一些AbstractEntities），这使得解决方案无用，我现在将坚持使用手动助手/构建器。

But: the builder created for this class will not know any inherited fields. For my use case (having some AbstractEntities) this renders the solution useless and I will stick with manual helpers/builders for now.

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