帶有Hibernate Envers的組合表

Question

我有一個應用程序，其中的復合表包含一個額外的列。 一切正常，直到我們添加了Hibernate Envers（@Audited）。

org.hibernate.MappingException：無法讀取no.pack.response.ResponseDomainCode中responseDomainCodes的按屬性映射

如果有必要，我很樂意提供更詳細的信息，但是，目前我不確定什么是相關的。

這些表看起來像這樣，並且是一個非常標准的復合鍵表，帶有一個額外的列。

數據庫架構

+-----------+---------+
|   CODE    |  TYPE   |
+-----------+---------+
| category  | VARCHAR |
| code      | VARCHAR |
+-----------+---------+
            |
            |
+----------------------+---------+
| RESPONSE_DOMAIN_CODE |  TYPE   |
+----------------------+---------+
| response_domain_id   | KEY     |
| code_id              | KEY     |
| rank                 | VARCHAR |
+----------------------+---------+
            |
            |
+--------------------+------+
|  RESPONSE_DOMAIN   | TYPE |
+--------------------+------+
| response_domain_id | PK   |
| response_kind_id   | FK   |
+--------------------+------+

ResponseDomain.java

@Entity
@Table(name = "responseDomain")
public class ResponseDomain implements Serializable {

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

   @ManyToOne
   @JoinColumn(name = "respons_kind_id")
   private ResponseKind responseKind;

   @OneToMany(fetch = FetchType.EAGER, mappedBy = "pk.responseDomain",  cascade = CascadeType.ALL)
    private Set<ResponseDomainCode> responseDomainCodes = new HashSet<>();

 //Omitted rest.
}

Code.java

@Entity
@Table(name = "code")
public class Code implements Serializable {

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

    private String category;

    private  String code;

    @OneToMany(fetch = FetchType.EAGER, mappedBy = "pk.code", cascade = CascadeType.ALL)
    private Set<ResponseDomainCode> responseDomainCodes = new HashSet<>();

    //Omitted rest
}

ResponseDomainCode.java

@Entity
@Table(name = "responseDomain_code")
@AssociationOverrides(value = {
        @AssociationOverride(name = "pk.responseDomain",
                joinColumns = @JoinColumn(name = "responseDomain_id")),
        @AssociationOverride(name = "pk.code",
                joinColumns = @JoinColumn(name = "code_id"))
})
public class ResponseDomainCode implements Serializable {

    @EmbeddedId
    private ResponseDomainCodeId pk = new ResponseDomainCodeId();

    @Column(name = "rank")
    private String rank;

    public ResponseDomainCodeId getPk() {
        return pk;
    }

    public void setPk(ResponseDomainCodeId pk) {
        this.pk = pk;
    }

    public String getRank() {
        return rank;
    }

    public void setRank(String rank) {
        this.rank = rank;
    }

    @Transient
    public ResponseDomain getResponseDomain() {
        return getPk().getResponseDomain();
    }

    public void setResponseDomain(ResponseDomain responseDomain) {
        this.getPk().setResponseDomain(responseDomain);
    }

    @Transient
    public Code getCode() {
        return getPk().getCode();
    }

    public void setCode(Code code) {
        this.getPk().setCode(code);
    }

    //Omitted rest
}

ResponseDomainCodeId.java

@Embeddable
public class ResponseDomainCodeId implements Serializable {

    @ManyToOne
    private ResponseDomain responseDomain;

    @ManyToOne
    private Code code;

    public ResponseDomainCodeId() {
    }

    public ResponseDomain getResponseDomain() {
        return responseDomain;
    }

    public void setResponseDomain(ResponseDomain responseDomain) {
        this.responseDomain = responseDomain;
    }

    public Code getCode() {
        return code;
    }

    public void setCode(Code code) {
        this.code = code;
    }

    //Omitted rest
}

Answer 1

在@adamw的幫助下，我通過更改映射來解決了這個問題。

代替使用組合鍵，而是生成具有其自己的唯一ID的表。

+----------------------+------------+
| RESPONSE_DOMAIN_CODE |    TYPE    |
+----------------------+------------+
| id                   | PK(BIGINT) |
| response_domain_id   | BIGINT     |
| code_id              | BIGINT     |
| rank                 | VARCHAR    |
+----------------------+------------+

現在，而不是使用@Embeddable和@EmbeddedId，我在兩邊都有一個@ManyToOne和@OneToMany批注，並基於ResponseDomain進行查詢。

這樣也可以使用Hibernate Envers進行全面版本審核控制。

我希望這對某人有所幫助。