我有一個實體集團記錄具有復合代碼BlocRecordId，并且在其復合代碼中有一個@Embedded（關系代碼ManyToOne）指向另一個原始記錄并希望審核實體集團記錄。實體集團記錄@Entity@Inheritance(strategy = InheritanceType.JOINED)@Table(name = "blocRecord")@Access(value = AccessType.FIELD)@Auditedpublic class BlocRecord { @EmbeddedId private BlocRecordId blocRecordId = new BlocRecordId(); @ManyToOne(fetch = FetchType.LAZY, optional = false) @JoinColumns({ @JoinColumn(name = "record_identifier_", referencedColumnName = "identifier_", unique = false, nullable = false), @JoinColumn(name = "record_recordType_", referencedColumnName = "recordType_", unique = false, nullable = false)}) @MapsId("record") private Record record;...}標識類塊記錄 ID@Embeddablepublic class BlocRecordId implements Serializable { @Embedded private RecordId record; @Column(name = "source_") String source ; @Column(name = "messageType_") String messageType ;實體記錄@Entity@Inheritance(strategy = InheritanceType.JOINED)@Table(name = "records")@Access(value = AccessType.FIELD)@Auditedpublic class Record { @EmbeddedId private RecordId recordId = new RecordId(); @OneToMany(targetEntity = BlocRecord.class, fetch = FetchType.LAZY, mappedBy = "record") private Set<BlocRecord> blocRecord = new java.util.HashSet<>();...}實體記錄的 id 類@Embeddablepublic class RecordId implements Serializable{ @Column(name = "identifier_") String identifier ; @Column(name = "recordType_") String recordType ;}休眠 -envers 在嘗試在可嵌入的 BlocRecordId 中生成字段記錄的元數據時失敗，引發流動異常您知道如何解決問題嗎？
1 回答
猛跑小豬
TA貢獻1858條經驗 獲得超8個贊
目前，Envers 不支持在可嵌入對象中嵌套嵌入對象的想法，當我們映射標識符列時，如您的示例所示。Envers 目前支持的唯一有效映射是可嵌入對象中的屬性是 a 或 類型。@ManyToOne@Basic
您可以解決此問題，但它涉及更明確一點，而不是使用。我的意思是重寫如下：RecordIdBlocRecordId
@Embeddable
public class BlocRecordId implements Serializable {
@Column(name = "identifier_")
String identifier;
@Column(name = "recordType_")
String recordType;
@Column(name = "source_")
String source;
@Column(name = "messageType_")
String messageType;
@Transient
private RecordId recordId;
/** Helper method to assign the values from an existing RecordId */
public void setRecordId(RecordId recordId) {
this.identifier = recordId.getIdentifier();
this.recordType = recordId.getRecordType();
}
/** Helper method to get the RecordId, caching it to avoid multiple allocations */
public RecordId getRecordId() {
if ( recordId == null ) {
this.recordId = new RecordId( identifier, recordType );
}
return this.recordId;
}
}
我同意這并不理想，但它至少可以解決代碼的當前限制。我已經添加并添加了HHH-13361作為開放問題來支持這一點。如果您愿意，歡迎您做出貢獻，或者我將努力為Envers 6.0提供此支持。
添加回答
舉報
0/150
提交
取消