Question

我正在使用hibernate搜索。我有以下User类，我使用Hibernate Self Join Annotations One To Many映射

这是我的POJO：

@Entity
@Table(uniqueConstraints = @UniqueConstraint(columnNames = "id"))
@Indexed
public class User implements java.io.Serializable {

private static final long serialVersionUID = 1L;

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Field(index = Index.YES, analyze = Analyze.YES, store = Store.YES)
private Integer id;
@Field(index = Index.YES, analyze = Analyze.YES, store = Store.YES)
private String userName;
@Field(index = Index.YES, analyze = Analyze.YES, store = Store.YES)
private String email;
private String password;
@Field(index = Index.YES, analyze = Analyze.YES, store = Store.YES)
private String gender;
@Field(index = Index.YES, analyze = Analyze.YES, store = Store.YES)
private Date joinDate;
@Field(index = Index.YES, analyze = Analyze.YES, store = Store.YES)
private Date cancellationDate;
@Field(index = Index.YES, analyze = Analyze.YES, store = Store.YES)
private String address;
@Field(index = Index.YES, analyze = Analyze.YES, store = Store.YES)
private String cellPhone;
@Column(columnDefinition = "TINYINT")
@Type(type = "org.hibernate.type.NumericBooleanType")
@Field(index = Index.YES, analyze = Analyze.YES, store = Store.YES)
private Boolean enabled;
@Field(index = Index.YES, analyze = Analyze.YES, store = Store.YES)
private AppRole appRole;

@IndexedEmbedded
@ManyToOne(cascade = { CascadeType.ALL })
@JoinColumn(name = "vendor_id")
private User vendor;
@ContainedIn
@OneToMany(fetch = FetchType.EAGER, mappedBy = "vendor")
private Set<User> customers = new HashSet<User>();


}

我遇到了以下问题：

    org.hibernate.search.SearchException: Circular reference. Duplicate use of com.pericent.dms.data.User in root entity com.pericent.dms.data.User#vendor.

如何解决上述问题？

Answer 1

我今天遇到了同样的问题并在此找到答案： https://forum.hibernate.org/viewtopic.php?f=9&t=991727&view=previous

您需要在供应商注释上设置深度，如下所示：

@IndexedEmbedded(depth = 1)

否则，Indexer会抱怨可能永无止境的引用链。

您设置的深度将限制您可以在关系中搜索的距离，例如如果深度为1，您可以查询vendor.email，但要求vendor.vendor.email则需要深度为2.

此外，您应该使用

注释id

@DocumentId

而不是字段 - 请参阅https://access.redhat.com/documentation/en-US/JBoss_Enterprise_Application_Platform/4.2/html/Hibernate_Search_Reference_Guide/Hibernate_Search-Mapping.html#Hibernate_Search-Entity-Basic_Mapping

Hibernate搜索循环参考

1 个答案: