Hibernate Envers无法扩展DefaultRevisionEntity

Question

我正在尝试扩展DefaultRevisionEntity以便将用户名添加到当前的修订版实体中。但是，它不只是添加新字段，而是创建一个全新的表。代码如下

AuditRevisionEntity

package com.example.demo;

import org.hibernate.envers.DefaultRevisionEntity;

import javax.persistence.Entity;
import javax.persistence.EntityListeners;

@Entity
@EntityListeners(AuditRevisionListener.class)
public class AuditRevisionEntity extends DefaultRevisionEntity {
    private String user;

    public String getUser() {
        return user;
    }

    public void setUser(String user) {
        this.user = user;
    }
}

AuditRevisionListener

package com.example.demo;

import org.hibernate.envers.RevisionListener;

public class AuditRevisionListener implements RevisionListener {

    @Override
    public void newRevision(Object revisionEntity) {
        AuditRevisionEntity rev = (AuditRevisionEntity) revisionEntity;
        rev.setUser("MYUSER");
    }
}

用户

package com.example.demo;

import org.hibernate.envers.Audited;
import javax.persistence.*;
import javax.validation.constraints.NotBlank;
import javax.validation.constraints.Size;

@Entity
@Audited
@Table(name = "users")
public class User {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id")
    private Long id;

    @NotBlank()
    @Size(min = 1, max = 100)
    @Column(name = "email")
    private String email;

    @NotBlank()
    @Size(min = 1, max = 100)
    @Column(name = "password")
    private String password;

}

产生

Answer 1

您的自定义RevisionEntity缺少必需的 @RevisionEntity 批注。

package com.example.demo;

import org.hibernate.envers.DefaultRevisionEntity;

import javax.persistence.Entity;
import javax.persistence.EntityListeners;

@Entity
@RevisionEntity( AuditRevisionListener.class )
public class AuditRevisionEntity extends DefaultRevisionEntity {
    private String user;

    public String getUser() {
        return user;
    }

    public void setUser(String user) {
        this.user = user;
    }
}

更多信息和代码示例可以在Envers documentation

中找到

Answer 2

我相信我已通过将表添加到指向主revinfo表的自定义实体中来解决此问题

@Entity
@RevisionEntity( AuditRevisionListener.class )
@Table(name = "revinfo")
public class AuditRevisionEntity extends DefaultRevisionEntity {
    private String user;

    public String getUser() {
        return user;
    }

    public void setUser(String user) {
        this.user = user;
    }
}