JPA (Hibernate, EclipseLink) 매핑 : JPA 2.0, @EmbeddedId 복합 PK-FK를 사용하는이 코드가 왜 작동하지 않습니까?

Question

3 테이블 :

CREATE TABLE PostAddresses 
(
    contact_id INTEGER NOT NULL, 
    ordinal_nbr SMALLINT NOT NULL, 
    PRIMARY KEY (contact_id, ordinal_nbr) 
); 

CREATE TABLE Foos 
(
    contact_id INTEGER NOT NULL, 
    ordinal_nbr SMALLINT NOT NULL, 
    PRIMARY KEY (contact_id, ordinal_nbr), 
    FOREIGN KEY (contact_id, ordinal_nbr) REFERENCES PostAddresses (contact_id, ordinal_nbr) 
); 

CREATE TABLE Bars 
(
    contact_id INTEGER NOT NULL, 
    ordinal_nbr SMALLINT NOT NULL, 
    numba INTEGER NOT NULL, 
    PRIMARY KEY (contact_id, ordinal_nbr, numba), 
    FOREIGN KEY (contact_id, ordinal_nbr) REFERENCES Foos (contact_id, ordinal_nbr) 
); 

간단한 로직 : 바 -> Foos -> PostAddresses 모두 (contact_id, ordinal_nbr), 그것이 무엇이든간에.

6 개의 엔티티와 각각의 복합 키 클래스.

@Entity 
@Table(name = "PostAddresses") 
public class PostAddress implements Serializable 
{ 
    @EmbeddedId 
    private PostAddressId embeddedId; 

    ... 
} 

@Embeddable 
public class PostAddressId implements Serializable 
{ 
    @Column(name = "contact_id") 
    private Integer contactId; 

    @Column(name = "ordinal_nbr") 
    private Integer ordinalNbr = 1; 

    ... 
} 

@Entity 
@Table(name = "Foos") 
public class Foo implements Serializable 
{ 
    @EmbeddedId 
    private FooId embeddedId; 

    @MapsId(value = "postAddressId") 
    @OneToOne 
    @JoinColumns(value = {@JoinColumn(name = "contact_id", referencedColumnName = "contact_id"), @JoinColumn(name = "ordinal_nbr", referencedColumnName = "ordinal_nbr")}) 
    private PostAddress postAddress = null; 

    ... 
} 

@Embeddable 
public class FooId implements Serializable 
{ 
    @Embedded 
    private PostAddressId postAddressId; //just one field! 

    ... 
} 

@Entity 
@Table(name = "Bars") 
public class Bar implements Serializable 
{ 
    @EmbeddedId 
    private BarId embeddedId; 

    ... 
} 

@Embeddable 
public class BarId implements Serializable 
{ 
    @Embedded 
    private FooId fooId; 

    @Column(name = "numba") 
    private Integer numba; 

    ... 
} 

Bar는 Foo를 참조하고, Foo는 PostAddress를 참조하며, 모두 복합 키 클래스를 통해 특별합니다. 외래 키는 복합 키이고 PK의 일부이기 때문에 ID 클래스를 ID 클래스에 중첩시켜야합니다. 나는 이것이 정확하다고 생각했다. 그러나 하이버 네이트 3.6과 이클립스 링크 2.2.0

하이버 네이트

org.hibernate.AssertionFailure: Unexpected nested component on the referenced entity when mapping a @MapsId: tld.transmuc.model.Foo 
    at org.hibernate.cfg.CopyIdentifierComponentSecondPass.doSecondPass(CopyIdentifierComponentSecondPass.java:101) 
    at org.hibernate.cfg.Configuration.processSecondPassesOfType(Configuration.java:1424) 
    at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1388) 
    at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1345) 
    at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1477) 
    at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:193) 
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:1096) 
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:278) 
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:362) 
    at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:56) 
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:48) 
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:32) 
    at tld.transmuc.Main.main(Main.java:27) 
Exception in thread "main" javax.persistence.PersistenceException: [PersistenceUnit: transmuc] Unable to configure EntityManagerFactory 
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:374) 
    at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:56) 
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:48) 
    at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:32) 
    at tld.transmuc.Main.main(Main.java:27) 
Caused by: org.hibernate.AssertionFailure: Unexpected nested component on the referenced entity when mapping a @MapsId: tld.transmuc.model.Foo 
    at org.hibernate.cfg.CopyIdentifierComponentSecondPass.doSecondPass(CopyIdentifierComponentSecondPass.java:101) 
    at org.hibernate.cfg.Configuration.processSecondPassesOfType(Configuration.java:1424) 
    at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1388) 
    at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1345) 
    at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1477) 
    at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:193) 
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:1096) 
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:278) 
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:362) 
    ... 4 more 

이클립스 링크 :

Exception in thread "main" Local Exception Stack: 
Exception [EclipseLink-30005] (Eclipse Persistence Services - 2.2.0.v20101118-r8514): org.eclipse.persistence.exceptions.PersistenceUnitLoadingException 
Exception Description: An exception was thrown while searching for persistence archives with ClassLoader: sun.misc.Launcher$AppClassLoader@1f7182c1 
Internal Exception: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.2.0.v20101118-r8514): org.eclipse.persistence.exceptions.EntityManagerSetupException 
Exception Description: Predeployment of PersistenceUnit [transmuc] failed. 
Internal Exception: java.lang.NullPointerException 
    at org.eclipse.persistence.exceptions.PersistenceUnitLoadingException.exceptionSearchingForPersistenceResources(PersistenceUnitLoadingException.java:126) 
    at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:136) 
    at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:65) 
    at javax.persistence.Persistence.createEntityManagerFactory(Unknown Source) 
    at javax.persistence.Persistence.createEntityManagerFactory(Unknown Source) 
    at tld.transmuc.Main.main(Main.java:27) 
Caused by: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.2.0.v20101118-r8514): org.eclipse.persistence.exceptions.EntityManagerSetupException 
Exception Description: Predeployment of PersistenceUnit [transmuc] failed. 
Internal Exception: java.lang.NullPointerException 
    at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:1021) 
    at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.callPredeploy(JPAInitializer.java:95) 
    at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:127) 
    ... 4 more 
Caused by: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.2.0.v20101118-r8514): org.eclipse.persistence.exceptions.EntityManagerSetupException 
Exception Description: Predeployment of PersistenceUnit [transmuc] failed. 
Internal Exception: java.lang.NullPointerException 
    at org.eclipse.persistence.exceptions.EntityManagerSetupException.predeployFailed(EntityManagerSetupException.java:210) 
    ... 7 more 
Caused by: java.lang.NullPointerException 
    at org.eclipse.persistence.internal.jpa.metadata.accessors.mappings.EmbeddedIdAccessor.process(EmbeddedIdAccessor.java:189) 
    at org.eclipse.persistence.internal.jpa.metadata.MetadataDescriptor.processMappingAccessors(MetadataDescriptor.java:1417) 
    at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor.processMappingAccessors(ClassAccessor.java:1405) 
    at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.processMappingAccessors(EntityAccessor.java:1061) 
    at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.process(EntityAccessor.java:601) 
    at org.eclipse.persistence.internal.jpa.metadata.MetadataProject.processStage2(MetadataProject.java:1464) 
    at org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processORMMetadata(MetadataProcessor.java:483) 
    at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:453) 
    at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:975) 
    ... 6 more 

이클립스 링크는 절대로 어떤 클래스에 대한 힌트를주지 않는다. 죄송합니다. 최소한 Hibernate는 @MapsId annotation과 Foo 클래스에 대한 문제를 알려줍니다.

org.hibernate.AssertionFailure: Unexpected nested component on the referenced entity when mapping a @MapsId: tld.transmuc.model.Foo 

무엇이 잘못 되었나요?

추신 : SSCCE를 만들 수 있습니다. JavaSE, HSQLDB, Ant, Hibernate 3.6이 필요한지 물어보십시오.

Answer 1

은 단순히 문제 :

 
    @Embeddable 
    public class FooId implements Serializable 
    { 
     // no annotation. 
     private PostAddressId postAddressId; //just one field! 

     ... 
    } 

    ... 
     @MapsId(value = "postAddressId") 
     @OneToOne 
     @JoinColumns(value = {@JoinColumn(name = "contact_id", referencedColumnName = "contact_id"), @JoinColumn(name = "ordinal_nbr", referencedColumnName = "ordinal_nbr")}) 
     private PostAddress postAddress = null; 

(EDIT)를 해결할 수 있습니다 종속 EmbeddedIds를 참조하는 EmbeddedId 유형 내에서 @Embedded 주석을 제거 : 또 다른 문제는 FooId의 사용이다. 이 클래스는 사용하지 않아야합니다. Foo Enity에 대한 ID 클래스는 PostAddressId이며 OneToOne "postAddress"는 @Id로 표시되고 @MapsId로 표시되지 않아야합니다. 마찬가지로 BarId는 Embedded를 정의하지 않아야하지만 PostAddressId를 직접 참조해야합니다. PostAddress를 참조하는 Bar Mapping은 MapsId를 사용해야합니다.

끔찍한 예외가 있으면 EclipseLink에 버그를 보내십시오. 편집에서 @Embedded 및 다른 업데이트를 제거해도 문제가 해결되지 않으면 EclipseLink 버그를 제출하십시오.