我正试图将我的Thorntail应用程序从Java 8迁移到Java 11,我遇到了实体关系的问题。使用的Map在Java 8中工作正常,但在Java 11中我有这个错误:
2019-07-03 15:48:12,713 ERROR [stderr] (main) Exception Description:
Predeployment of PersistenceUnit [p-unit] failed.
2019-07-03 15:48:12,713 ERROR [stderr] (main) Internal Exception:
Exception [EclipseLink-7250] (Eclipse Persistence Services -
2.7.3.v20180807-4be1041):
org.eclipse.persistence.exceptions.ValidationException
2019-07-03 15:48:12,713 ERROR [stderr] (main) Exception Description:
[class com.mytest.data.specific.entities.Table3] uses a non-entity
[class com.mytest.data.specific.entities.Table2] as target entity
in the relationship attribute [field table2].
我的Entity mapping是这样的:
@MappedSuperclass
public abstract class AbstractIdEntity extends AbstractEntity {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id")
private Long id;
public Long getId() {
return id;
}
protected void setId(final Long id) {
this.id = id;
}
}
@Entity
@Table(name = "table_2")
public class Table2 extends AbstractIdEntity {
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "table_1_id", referencedColumnName = "id")
private Table1 table1;
@Column(name = "some_info", nullable = false)
private String someInfo;
@OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@JoinColumn(name = "table_2_id")
private List<Table3> table3List;
//more stuff
}
@Entity
@Table(name = "table_3")
public class Table3 extends AbstractIdEntity {
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "table_2_id", referencedColumnName = "id")
private Table2 table2;
@Lob
@Column(name = "some_bytes", nullable = false)
private byte[] someBytes;
@OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@JoinColumn(name = "table_3_id")
private List<Table4> table4List;
//more stuff
}
我试图删除子引用到父,但然后EntityManager
不会找到任何定义的NamedQuery
。我尝试的另一件事是切换到休眠,这个Map工作,但有一些问题,持久化的实体。
我使用的是Thorntail v2.4.0.Final和Adverselink v2.7.3。
有人知道问题出在哪里吗?
我在一个小项目中创建了一个类似的层次结构,并将其上传到github,如果有人想仔细看看-> githubProject。
1条答案
按热度按时间2nbm6dog1#
这是一个奇怪的例外。我不知道它是否会修复它,但您的
@OneToMany
Map应该使用mappedBy
属性,而不是指定@JoinColumn
s。例如Table3.table2
应该这样Map: