OneToMany 관계 설정에 문제가 있습니다.최대 절전 모드 OneToMany, 자연 PK
내 DB 스키마 :
TABLE PARENT (
VENDOR,
CHANNEL,
CREATEDATE,
REFID,
...
)
UNIQUE INDEX PK_PARENT (VENDOR, CHANNEL, CREATEDATE, REFID)
TABLE CHILD (
REFID,
NAME,
)
UNIQUE INDEX PK_CHILD (REFID, NAME)
그리고 자바 클래스는
public class Parent {
String vendor;
String channel;
Date createdate;
Long refid;
List<Child> childs;
...
}
public class Child {
Long refid;
String name;
}
내 문제는 내가이 클래스에 대한 적절한 매핑을 개발할 수 없다는 것입니다. 일관성있는 이유 때문에 hbm xml을 사용해야합니다. 두 개의 별도 엔티티로 매핑 할 수있었습니다. 그에
Caused by: org.hibernate.MappingException: Foreign key (FK_9897tr114hxkewktsi9vb92x6:CHILD[REFID])) must have same number of columns as the referenced primary key (PARENT[VENDOR,CHANNEL,CREATEDATE,REFID])
at org.hibernate.mapping.ForeignKey.alignColumns(ForeignKey.java:110)
at org.hibernate.mapping.ForeignKey.alignColumns(ForeignKey.java:93)
at org.hibernate.cfg.Configuration.secondPassCompileForeignKeys(Configuration.java:1818)
at org.hibernate.cfg.Configuration.originalSecondPassCompile(Configuration.java:1741)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1426)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1846)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1930)
어떤 생각 :
<hibernate-mapping>
<class name="Parent" table="PARENT">
<composite-id >
<key-property name="vendor" type="string">
<column name="VENDOR" />
</key-property>
<key-property name="vendor" type="string">
<column name="CHANNEL" />
</key-property>
<key-property name="vendor" type="Date">
<column name="CREATEDATE" />
</key-property>
<key-property name="vendor" type="Long">
<column name="REFID" />
</key-property>
<composite-id />
<list name="childs" table="CHILD" lazy="true" fetch="select">
<key column="REFID" />
<index column="REFID" />
<one-to-many class="Child" />
</list>
</class>
<class name="Child" table="CHILD">
<composite-id >
<key-property name="vendor" type="Long">
<column name="REFID" />
</key-property>
<key-property name="name" type="string">
<column name="NAME" />
</key-property>
<composite-id />
</class>
</hibernate-mapping>
나는 예외가?