1

私は多くの研究を行っていますが、私の問題に対する本当の答えは見つかりません。

多くの関係を持つオブジェクトを作成し、それを永続化したいと考えています。

私のエンティティは次のとおりです：参照型で定義された参照、マニュアルにリンクされています（おそらくnullの可能性があります）。この参照は、1 つまたは複数の航空機に対して定義されており、いくつかの翻訳があります。

簡単にするために、カスケードと orphelanRemoval にいくつかの注釈を付けます。

ここにコード。

@Table(name = "T_E_REFERENCE_REF", 
       uniqueConstraints = @UniqueConstraint(columnNames = "REF_IDENTIFIER"))
public class Reference implements java.io.Serializable {

    @Id
    @Column(name = "REF_ID", unique = true, nullable = false)
    @TableGenerator(name="referenceSeqStore", 
        table="T_S_APP_SEQ_STORE_AST", 
        pkColumnName="AST_SEQ_NAME",
        valueColumnName = "AST_SEQ_VALUE",
        pkColumnValue = "T_E_REFERENCE_REF.REF_ID", 
        allocationSize=1)
    @GeneratedValue(strategy=GenerationType.TABLE, generator="referenceSeqStore")                   
    private Integer id;

    @Column(name = "REF_IDENTIFIER", unique = true, nullable = false, length = 50)  
    private String identifier;

    @Column(name = "REF_LINK")  
    private String link;

    @Column(name = "REF_OBSERVATIONS", length = 4000)
    private String observations;

    @ManyToOne
    @JoinColumn(name = "REF_RFT_ID", nullable = false)  
    private ReferenceType referenceType;

    @ManyToOne
    @JoinColumn(name = "REF_MAN_ID")    
    private Manual manual;  

    @OneToMany(fetch = FetchType.LAZY, 
               mappedBy = "reference",
               cascade = { CascadeType.ALL }, orphanRemoval = true)
    private Set<Translation> translations = new HashSet<Translation>(0);

    @ManyToMany(fetch = FetchType.LAZY,
                cascade = { CascadeType.ALL })
    @JoinTable(name = "T_J_REF_AIR_RFA", 
               joinColumns = { @JoinColumn(name = "RFA_REF_ID", nullable = false, updatable = false) },
               inverseJoinColumns = { @JoinColumn(name = "RFA_AIR_ID", nullable = false, updatable = false) })
    private Set<Aircraft> aircrafts = new HashSet<Aircraft>(0);

    @Transient 
    private String localeTranslation;

}


@Table(name = "T_R_AIRCRAFT_AIR", 
       uniqueConstraints = @UniqueConstraint(columnNames = "AIR_NAME"))
public class Aircraft implements java.io.Serializable {

    @Id
    @Column(name = "AIR_ID", unique = true, nullable = false)
    @TableGenerator(name="aircraftSeqStore", 
        table="T_S_APP_SEQ_STORE_AST", 
        pkColumnName="AST_SEQ_NAME",
        valueColumnName = "AST_SEQ_VALUE",
        pkColumnValue = "T_R_AIRCRAFT_AIR.AIR_ID", 
        allocationSize=1)
    @GeneratedValue(strategy=GenerationType.TABLE, 
        generator="aircraftSeqStore")       
    private Integer id;

    @Column(name = "AIR_NAME", unique = true, nullable = false, length = 50)
    private String name;

    @ManyToMany(fetch = FetchType.LAZY)
    @JoinTable(name = "T_J_REF_AIR_RFA", 
               joinColumns = { @JoinColumn(name = "RFA_AIR_ID", nullable = false, updatable = false) }, 
               inverseJoinColumns = { @JoinColumn(name = "RFA_REF_ID", nullable = false, updatable = false) })
    @OrderBy("identifier")
    private Set<Reference> references = new HashSet<Reference>(0);

    @ManyToMany(fetch = FetchType.LAZY)
    @JoinTable(name = "T_J_MAN_AIR_MNA", 
               joinColumns = { @JoinColumn(name = "MNA_AIR_ID", nullable = false, updatable = false) }, 
               inverseJoinColumns = { @JoinColumn(name = "MNA_MAN_ID", nullable = false, updatable = false) })
    @OrderBy("type")
    private Set<Manual> manuals = new HashSet<Manual>(0);

    @OneToMany(fetch = FetchType.LAZY, 
               mappedBy = "aircraft",
               cascade = { CascadeType.REMOVE })
    private Set<UserConfig> userConfigs = new HashSet<UserConfig>(0);

}

@Table(name = "T_R_REFERENCE_TYPE_RFT", 
       uniqueConstraints = @UniqueConstraint(columnNames = "RFT_TYPE"))
public class ReferenceType implements java.io.Serializable {

    @Id
    @Column(name = "RFT_ID", unique = true, nullable = false)
    @TableGenerator(name="referenceTypeSeqStore", 
        table="T_S_APP_SEQ_STORE_AST", 
        pkColumnName="AST_SEQ_NAME",
        valueColumnName = "AST_SEQ_VALUE",
        pkColumnValue = "T_R_REFERENCE_TYPE_RFT.RFT_ID", 
        allocationSize=1)
    @GeneratedValue(strategy=GenerationType.TABLE, generator="referenceTypeSeqStore")                   
    private Integer id;

    @Column(name = "RFT_TYPE", unique = true, nullable = false, length = 50)    
    private String type;

    @OneToMany(fetch = FetchType.LAZY, 
               mappedBy = "referenceType", 
               cascade = { CascadeType.REMOVE })    
    private Set<Reference> references = new HashSet<Reference>(0);

    @OneToMany(fetch = FetchType.LAZY, 
               mappedBy = "referenceType",
               cascade = { CascadeType.REMOVE })    
    private Set<UserConfig> userConfigs = new HashSet<UserConfig>(0);

    @Transient
    private String typeTranslated;
}

@Table(name = "T_R_MANUAL_MAN", 
       uniqueConstraints = @UniqueConstraint(columnNames = "MAN_TYPE"))
public class Manual implements java.io.Serializable {

    @Id
    @Column(name = "MAN_ID", unique = true, nullable = false)
    @TableGenerator(name="manualSeqStore", 
        table="T_S_APP_SEQ_STORE_AST", 
        pkColumnName="AST_SEQ_NAME",
        valueColumnName = "AST_SEQ_VALUE",
        pkColumnValue = "T_R_MANUAL_MAN.MAN_ID", 
        allocationSize=1)
    @GeneratedValue(strategy=GenerationType.TABLE, generator="manualSeqStore")                  
    private Integer id;

    @Column(name = "MAN_TYPE", unique = true, nullable = false, length = 50)
    private String type;

    @ManyToMany(fetch = FetchType.LAZY)
    @JoinTable(name = "T_J_MAN_AIR_MNA", 
               joinColumns = { @JoinColumn(name = "MNA_MAN_ID", nullable = false, updatable = false) }, 
               inverseJoinColumns = { @JoinColumn(name = "MNA_AIR_ID", nullable = false, updatable = false) })  
    private Set<Aircraft> aircrafts = new HashSet<Aircraft>(0);

    @OneToMany(fetch = FetchType.LAZY, mappedBy = "manual")
    private Set<Reference> references = new HashSet<Reference>(0);

}

@Table(name = "T_E_TRANSLATION_TRL")
public class Translation implements java.io.Serializable {

    @Id
    @Column(name = "TRL_ID", unique = true, nullable = false)
    @TableGenerator(name="translationSeqStore", 
        table="T_S_APP_SEQ_STORE_AST", 
        pkColumnName="AST_SEQ_NAME",
        valueColumnName = "AST_SEQ_VALUE",
        pkColumnValue = "T_E_TRANSLATION_TRL.TRL_ID", 
        allocationSize=1)
    @GeneratedValue(strategy=GenerationType.TABLE, 
        generator="translationSeqStore")            
    private Integer id;

    @ManyToOne
    @JoinColumn(name = "TRL_REF_ID", nullable = false)
    private Reference reference;

    @ManyToOne
    @JoinColumn(name = "TRL_LAN_ID", nullable = false)  
    private Language language;

    @Column(name = "TRL_LABEL", nullable = false, length = 4000)    
    private String label;

}

@Table(name = "T_R_LANGUAGE_LAN", 
       uniqueConstraints = @UniqueConstraint(columnNames = "LAN_LANG"))
public class Language implements java.io.Serializable {

    @Id
    @Column(name = "LAN_ID", unique = true, nullable = false)
    @TableGenerator(name="langSeqStore", 
        table="T_S_APP_SEQ_STORE_AST", 
        pkColumnName="AST_SEQ_NAME",
        valueColumnName = "AST_SEQ_VALUE",
        pkColumnValue = "T_R_LANGUAGE_LAN.LAN_ID", 
        allocationSize=1)
    @GeneratedValue(strategy=GenerationType.TABLE, generator="langSeqStore")        
    private Integer id;

    @Column(name = "LAN_LANG", unique = true, nullable = false, length = 2) 
    private String lang;
}

データベースに既に保存されているいくつかのオブジェクトを使用して新しい参照を作成するために、JUnit テストをコーディングしました。しかし、挿入メソッド (persist) は毎回 javax.persistence.PersistenceException : org.hibernate.PersistentObjectException: detached entity passed to persist で失敗します。

ここで私の Junit テスト:

@Test
@Transactional
public void testInsertReference() {

    // Create transient
    Reference reference = new Reference();
    reference.setIdentifier("MYTEST");
    reference.setLink("MYLINK");
    reference.setObservations("MYCOMMENT");

    // get from database
    Manual manual = manualService.getManual("MYMAN");
    ReferenceType refType = referenceTypeService.getReferenceType(1);

    Aircraft aircraft = aircraftService.getAircraft("MYAIR");
    Set<Aircraft> airList = new HashSet<Aircraft>();
    airList.add(aircraft);

    Language langEn = languageService.getLanguage("EN");
    Language langFr = languageService.getLanguage("FR");

    Translation trlEn = new Translation();
    trlEn.setLanguage(langEn);
    trlEn.setLabel("my ref test");

    Translation trlFr = new Translation();
    trlFr.setLanguage(langFr);
    trlFr.setLabel("mon test de ref");

    List<Translation> trlList = new ArrayList<Translation>();
    trlList.add(trlEn);
    trlList.add(trlFr);         

    // Set some relations
    reference.setManual(manual);
    reference.setReferenceType(refType);
    reference.setAircrafts(airList);
    reference.setTranslations(new HashSet<Translation>(trlList));

    // Persist
    reference = referenceService.insertReference(reference);  // which execute : entityManager.persist(entity)
    logger.info(reference.toString());
}

何か案が ？

ありがとうございました

スタック トレース:

javax.persistence.PersistenceException: org.hibernate.PersistentObjectException: detached entity passed to persist: myprog.test.persistence.entity.Aircraft
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1365)
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1293)
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1299)
    at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:865)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:365)
    at $Proxy39.persist(Unknown Source)
    at myprog.test.persistence.dao.impl.GenericDaoImpl.create(GenericDaoImpl.java:54)
    at myprog.test.service.impl.ReferenceServiceImpl.insertReference(ReferenceServiceImpl.java:61)
    at myprog.test.service.impl.ReferenceServiceImpl$$FastClassByCGLIB$$f01500a8.invoke(<generated>)
    at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
    at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:689)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:622)
    at myprog.test.service.impl.ReferenceServiceImpl$$EnhancerByCGLIB$$a99de5b.insertReference(<generated>)
    at myprog.test.service.ReferenceServiceTest.testInsertReference(ReferenceServiceTest.java:147)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: org.hibernate.PersistentObjectException: detached entity passed to persist: myprog.test.persistence.entity.Aircraft
    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:141)
    at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:802)
    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:795)
    at org.hibernate.engine.spi.EJB3CascadingAction$1.cascade(EJB3CascadingAction.java:52)
    at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:380)
    at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:323)
    at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:208)
    at org.hibernate.engine.internal.Cascade.cascadeCollectionElements(Cascade.java:409)
    at org.hibernate.engine.internal.Cascade.cascadeCollection(Cascade.java:350)
    at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:326)
    at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:208)
    at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:165)
    at org.hibernate.event.internal.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:448)
    at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:293)
    at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:193)
    at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:136)
    at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:78)
    at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:208)
    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:151)
    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:78)
    at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:811)
    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:786)
    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:790)
    at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:859)
    ... 49 more
4

1 に答える 1

1

オブジェクト ReferenceType と Aircraft をデータベースから取得すると、これらは PersistenceManager によって管理されなくなります。これが分離オブジェクトの意味です。

これを行う必要がある場合は、ReferenceService で復元されたエンティティを再アタッチする必要があります。次の方法を使用できます。

Aircraft a = em.getReference(Aircraft.class, reference.getAircraft().getId());

永続化を呼び出す前に、分離されたすべてのエンティティでこれを行う必要があります。回復したら、それらを参照オブジェクトに再度設定することを忘れないでください。

reference.setAircraft(a);

双方向の関連付けがあり、それらの両側を設定していないために、問題が発生することもあります。

詳細については、次を参照してください。

http://java.dzone.com/articles/ Saving_detatched_entities

よろしく

于 2012-08-22T20:07:44.447 に答える