JPA contrainte d'intégrité Référentielle violation oneToMany en vrac et de la manipulation de la requête

Mon domaine diagramme de modèle ressemble à ceci:

Comme vous pouvez le voir j'ai un oneToMany releation entre l'Élève et de l'Assiduité et entre la Fréquentation et de Séminaire.

Ci-dessous sont les Élèves et la Fréquentation des Classes, ainsi que de ma classe helper( Initialisation).

package com.seminars.domain;
import java.util.Calendar;
import java.util.HashSet;
import java.util.Set;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import org.hibernate.annotations.GenericGenerator;
import com.seminars.util.SimpleCalendar;
@Entity
@Table(name="Student")
public class Student {
/*start all class fields*/
@Id
//@GenericGenerator(name="kaugen" , strategy="increment")
//@GeneratedValue(generator="kaugen")
@Column(name="studentId")
//@GeneratedValue(strategy=GenerationType.AUTO)
private int studentId;  
@Column(name="firstname", length=50, nullable = false)
private String firstname;
@Column(name="lastname", length=50, nullable = false)
private String lastname;
@Column(name="email", length=50, nullable = false)
private String email;
@Column(name="username", length=50, nullable = false)
private String username;
@Column(name="password", length=50, nullable = false)
private String password;
@Column(name="idCard", length=50, nullable = false)
private String idCard;
/* end fields*/
@OneToMany(mappedBy = "student",cascade=CascadeType.ALL) 
private Set<Attendance> attendance = new HashSet<Attendance>() ; 
/**
* default constructor 
*/
public Student(){
}
/**
* Secondary Constructor to automatically create a Student 
* @param firstname
* @param lastname
* @param email
* @param username
* @param password
* @param idcard
*/
public Student(String firstname,String lastname,String email, String username,String password, String idcard){
this.setFirstname(firstname);
this.setLastname(lastname);
this.setEmail(email);
this.setIdCard(idcard);
this.setPassword(password);
this.setUsername(username);
}
public int getStudentId() {
return studentId;
}
public void setStudentId(int studentId) {
this.studentId = studentId;
}
public String getFirstname() {
return firstname;
}
public void setFirstname(String firstname) {
this.firstname = firstname;
}
public String getLastname() {
return lastname;
}
public void setLastname(String lastname) {
this.lastname = lastname;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getIdCard() {
return idCard;
}
public void setIdCard(String idCard) {
this.idCard = idCard;
}
/*Methods for connecting Student<------->Attendance*/
/**
* @return a new hashset contain 
* <p>all attendances of the student
*/
public HashSet<Attendance> getAttendance(){
return  new HashSet<Attendance>(attendance);        
}
/**
* @param attendance
* @param seminar
*/
public void addAttendance(Attendance attendance, Seminar seminar){
if(attendance!=null & seminar!=null){
attendance.setStudent(this);
attendance.setSeminar(seminar);     
attendance.setRegisterDate((new SimpleCalendar(Calendar.getInstance()))); /* xreiazomaste na orizete I timi apo to sistima automata*/
}
}
/**
* @param attendance to remove from HashSet
*/
public void removeAttendance(Attendance attendance){
attendance.setStudent(null);
}
/**
* @return Attendance HashSet
*/
public Set<Attendance> findAttendance(){
return attendance; 
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
public boolean equals(Object other) {
if ( other == null) {
return false;
}
if (this == other) {
return true;
}
if (! (other instanceof Student)) {
return false;
}
Student theStudent = (Student) other;
//Integer a=getStudentId();
//Integer b=theStudent.getStudentId();
if(!(getIdCard()==null) ? theStudent.getIdCard()==null : getIdCard().equals(theStudent.getIdCard())){
return false;        
}
return true;  
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
public int hashCode() {
return idCard == null ? 0 : idCard.hashCode();
}
}

La Fréquentation De La Classe

/**
* 
*/
package com.seminars.domain;
import java.util.Calendar;
import java.util.HashSet;
import java.util.Set;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import org.junit.Assert;
import org.junit.Test;
import com.seminars.util.SimpleCalendar;
/**
* @author Ilias
*
*/
@Entity
@Table(name = "Attendance")
public class Attendance {
public Attendance() {
this.registerDate=new SimpleCalendar(Calendar.getInstance());
}
@Id
@Column(name="attendanceId")
@GeneratedValue(strategy=GenerationType.AUTO)
private int attendanceId;   
@Column(name = "registerDate", length = 200, nullable = false)
//@Temporal(TemporalType.DATE)
@org.hibernate.annotations.Type(
type="com.seminars.persistence.SimpleCalendarCustomType")
private SimpleCalendar registerDate;
@Column(name = "success")
private boolean success;
@ManyToOne
@JoinColumn(name="studentId", nullable = false)
private Student student;
@OneToMany(mappedBy = "attendance",cascade=CascadeType.ALL)  
private Set<Absence> absence = new HashSet<Absence>() ; 
@ManyToOne
@JoinColumn(name="seminarId", nullable = false)
private Seminar seminar;
@OneToMany(mappedBy = "attendance",cascade=CascadeType.ALL)  
private Set<Payment> payment = new HashSet<Payment>() ;/*<<<*/
public SimpleCalendar getRegisterDate() {
return registerDate;
}
public void setRegisterDate(SimpleCalendar registerDate) {
this.registerDate = registerDate;
}
public boolean isSuccess() {
return success;
}
public void setSuccess(boolean success) {
this.success = success;
}
/**
* @return the student
*/
public Student getStudent() {
return student;
}
/**
* @param student the student to set
*/
public void setStudent(Student student) {
//this.student = student.findAttendance().add(this);
if (this.student != null) {
this.student.findAttendance().remove(this);
}
this.student = student;
if (this.student != null) {
this.student.findAttendance().add(this);
}
}
/**
* @return the seminar
*/
public Seminar getSeminar() {
return seminar;
}
/**
* @param seminar the seminar to set
*/
public void setSeminar(Seminar seminar) {
//this.student = student.findAttendance().add(this);
if (this.seminar != null) {
this.seminar.findAttendance().remove(this);
}
this.seminar = seminar;
if (this.seminar != null) {
this.seminar.findAttendance().add(this);
}
}
public HashSet<Absence> getAbsence(){
return  new HashSet<Absence>(absence);
}
public void addAbsence(Absence absence, SimpleCalendar date){
if(absence!=null && date!=null){
absence.setAttendance(this);
/*stelnoume tin imerominia pou kataxorei I gramamteia oti elipe o foititis*/
absence.setDate(date);
}       
}
/**
* @return Absence HashSet
*/
public Set<Absence> findAbsence(){
return absence; 
}
/**
* @return HashSet<Payment>
*/
public HashSet<Payment> getPayment(){
return  new HashSet<Payment>(payment);
}
public void addPayment(Payment payment, SimpleCalendar date){
if(payment!=null && date!=null){
payment.setAttendance(this);
/*stelnoume tin imerominia pou kataxorei I gramamteia oti elipe o foititis*/
//absence.setDate(date);
}           
}
/**
* @return Payment HashSet
*/
public Set<Payment> findPayment(){
return payment; 
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object other) {
if ( other == null) {
return false;
}
if (this == other) {
return true;
}
if (! (other instanceof Attendance)) {
return false;
}
Attendance theAttendance = (Attendance) other;
//Integer a=getStudentId();
//Integer b=theStudent.getStudentId();
if(!(getStudent()==null) ? theAttendance.getStudent()==null : getStudent().equals(theAttendance.getStudent())){
return false;        
}
if(!(getSeminar()==null) ? theAttendance.getSeminar()==null : getSeminar().equals(theAttendance.getSeminar())){
return false;        
}
return true;  
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
public int hashCode() {
if(student==null && seminar==null){
return 0;
}
else {
int result=0;
if(student!=null)
result+= 13*getStudent().hashCode()/*+getSeminar().hashCode()*/;            
if(seminar!=null)
result+= 13*getSeminar().hashCode();            
return result;
}
/*int result = 0;
result = getStudent() == null ? result : 13 * result + getStudent().hashCode(); 
result = getSeminar() == null ? result : 13 * result + getSeminar().hashCode();
return result;  */
}
}

Initialiseur De Classe

    package com.seminars.persistence;
import java.util.Calendar;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.Persistence;
import javax.persistence.Query;
import com.seminars.domain.Attendance;
import com.seminars.domain.Seminar;
import com.seminars.domain.Student;
import com.seminars.util.SimpleCalendar;
public class Initializer  {
/* EntityManager em = DatabaseFactory.createEntityManager();
EntityTransaction tx = em.getTransaction();*/
//delete all data from database
public void  eraseData() {
EntityManager em = DatabaseFactory.getCurrentEntityManager();
EntityTransaction tx = em.getTransaction();
tx.begin();
Query query = em.createNativeQuery("delete from \"Student\"");
query.executeUpdate();
query = em.createNativeQuery("delete from \"Absence\"");
query.executeUpdate();
query = em.createNativeQuery("delete from \"Attendance\"");
query.executeUpdate();
query = em.createNativeQuery("delete from \"Payment\"");
query.executeUpdate();
query = em.createNativeQuery("delete from \"Seminar\"");
query.executeUpdate();
query = em.createNativeQuery("delete from \"Program\"");
query.executeUpdate();
tx.commit();
em.close();
}
public void prepareData() {
//πριν εισάγουμε τα δεδομένα διαγράφουμε ότι υπάρχει
eraseData();
EntityManager em = DatabaseFactory.createEntityManager();
EntityTransaction tx = em.getTransaction();
tx.begin();
Student s1=new Student("george","antoniou","[email protected]","antoniou","password","998456");
s1.setStudentId(1);
Student s2=new Student("ilias","butsikakis","[email protected]","ilias","butsi","98756423");
s2.setStudentId(2);
Seminar sem1=new Seminar(1, "Java", 5,500, 2, new SimpleCalendar(2013,1,5), new SimpleCalendar(2013,2,5),"100");
sem1.setSeminarId(1);
Attendance att=new Attendance();
att.setRegisterDate(new SimpleCalendar(Calendar.getInstance()));
//s1.addAttendance(att, sem1);
//s1=em.merge(s1);
//s2=em.merge(s2);
//sem1=em.merge(sem1);
//em.persist(att);
em.persist(s1);
em.persist(s2);
em.persist(sem1);
s1.addAttendance(att, sem1);
em.persist(att);
s1=em.merge(s1);
em.persist(s1);
tx.commit();
em.close();
}    
/*public void prepareData1() {
//πριν εισάγουμε τα δεδομένα διαγράφουμε ότι υπάρχει  
eraseData();   
Student s1=new Student("george","antoniou","[email protected]","antoniou","password","998456");
s1.setStudentId(1);
Student s2=new Student("ilias","butsikakis","[email protected]","ilias","butsi","98756423");
s2.setStudentId(2);
Seminar sem1=new Seminar(1, "Java", 5,500, 2, new SimpleCalendar(2013,1,5), new SimpleCalendar(2013,2,5),"100");
//EntityManager em = DatabaseFactory.createEntityManager();
EntityManager em = DatabaseFactory.createEntityManager();
EntityTransaction tx = em.getTransaction();                       
tx.begin();
em.persist(s1);
em.persist(s2);
tx.commit();
em.close();
/*NOTE ALWAYS REMEMBER: 
* 1)Open entity Manager,
* 2)Open Transaction
* 3)Create Items
* else You will need to use merge or you will get a detached exception!!!
*  */
//s1=em.merge(s1);
/* Student s1=new Student("george","antoniou","[email protected]","antoniou","password","998456");
s1.setStudentId(1);
Student s2=new Student("ilias","butsikakis","[email protected]","ilias","butsi","98756423");
s2.setStudentId(2);
Seminar sem1=new Seminar(1, "Java", 5,500, 2, new SimpleCalendar(2013,1,5), new SimpleCalendar(2013,2,5),"100");
s1=em.merge(s1);
s2=em.merge(s2);
sem1=em.merge(sem1);
em.persist(s1);
em.persist(s2);
em.persist(sem1);
tx.commit();
em.close();*/
/*EntityManagerFactory emf = Persistence.createEntityManagerFactory("library");
EntityManager em = emf.createEntityManager();*/
//}    
}

Le projet est principalement contrôlée par JUnit Tests, donc dans l'Initialiseur de la Classe, nous avons un PrepareData méthode qui crée des exemples de données à utiliser dans chaque case ainsi supprimer la méthode pour s'assurer que chaque contrôle est effectué avec les mêmes données.

Avant de tenter de vérifier la connexion entre l'Élève et de l'Assiduité tout semblait bien fonctionner. Je suis allé et a créé une nouvelle Présence de l'Objet dans l'initialiseur de tester si l'Étudiant peut s'inscrire "ok" dans un séminaire, et j'ai reçu beaucoup de messages d'Exception.

Celle que j'ai remarqué le plus, bien que (comme il est montré et dans la console) est le

3781 [principal] ERREUR org.mise en veille prolongée.util.JDBCExceptionReporter -
Contrainte d'intégrité référentielle violation: "FKE7E9BF09F9FEB38B:
PUBLIC"."Fréquentation"" FOREIGN KEY(ÉTUDIANT) RÉFÉRENCES
PUBLIC"."Étudiant""(""studentId"")"; instruction SQL: suppression de
"L'élève" [23003-135]

J'ai vérifié pour s'assurer que les annotations et les cascades sont à la bonne place mais sans résultat...

J'ai aussi essayé de changer l'ordre les éléments sont enregistrés dans initilizer classe mais ensuite d'autres erreurs sont apparues

**javax.persistence.PersistenceException: org.hibernate.PropertyValueException: not-null property references a null or transient value: com.seminars.domain.Attendance.seminar**
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1235)
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1168)
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1174)
at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:674)
at com.seminars.persistence.Initializer.prepareData(Initializer.java:73)
at com.seminars.services.ManageStudentServiceTest.setup(ManageStudentServiceTest.java:60)
at com.seminars.services.ManageStudentServiceTest.testManageStudentService(ManageStudentServiceTest.java:97)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:44)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
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.PropertyValueException: not-null property references a null or transient value: com.seminars.domain.Attendance.seminar
at org.hibernate.engine.Nullability.checkNullability(Nullability.java:101)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:313)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:204)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:130)
at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:69)
at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:179)
at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:135)
at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:61)
at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:800)
at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:774)
at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:778)
at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:668)
... 27 more

Ci-dessous la liste des exceptions est venu avant de changer l'ordre des éléments dans l'initialiseur de classe:

> javax.persistence.PersistenceException:
> org.hibernate.exception.ConstraintViolationException: could not
> execute native bulk manipulation query    at
> org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1235)
>   at
> org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1168)
>   at
> org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1245)
>   at
> org.hibernate.ejb.AbstractQueryImpl.executeUpdate(AbstractQueryImpl.java:108)
>   at
> com.seminars.persistence.Initializer.eraseData(Initializer.java:37)
>   at
> com.seminars.services.ManageStudentServiceTest.empty(ManageStudentServiceTest.java:64)
>   at
> com.seminars.services.ManageStudentServiceTest.testManageStudentService(ManageStudentServiceTest.java:99)
>   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)  at
> sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)   at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)   at
> java.lang.reflect.Method.invoke(Unknown Source)   at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
>   at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
>   at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
>   at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
>   at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
>   at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
>   at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
>   at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:44)
>   at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
>   at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
>   at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
>   at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
>   at
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
>   at org.junit.runners.ParentRunner.run(ParentRunner.java:220)    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.exception.ConstraintViolationException: could
> not execute native bulk manipulation query    at
> org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:96)
>   at
> org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
>   at
> org.hibernate.engine.query.NativeSQLQueryPlan.performExecuteUpdate(NativeSQLQueryPlan.java:219)
>   at
> org.hibernate.impl.SessionImpl.executeNativeUpdate(SessionImpl.java:1300)
>   at
> org.hibernate.impl.SQLQueryImpl.executeUpdate(SQLQueryImpl.java:365)
>   at
> org.hibernate.ejb.QueryImpl.internalExecuteUpdate(QueryImpl.java:183)
>   at
> org.hibernate.ejb.AbstractQueryImpl.executeUpdate(AbstractQueryImpl.java:99)
>   ... 27 more Caused by: org.h2.jdbc.JdbcSQLException: Referential
> integrity constraint violation: "FKE7E9BF09F9FEB38B:
> PUBLIC.""Attendance"" FOREIGN KEY(STUDENT) REFERENCES
> PUBLIC.""Student""(""studentId"")"; SQL statement: delete from
> "Student" [23003-135]     at
> org.h2.message.DbException.getJdbcSQLException(DbException.java:327)
>   at org.h2.message.DbException.get(DbException.java:167)     at
> org.h2.message.DbException.get(DbException.java:144)  at
> org.h2.constraint.ConstraintReferential.checkRow(ConstraintReferential.java:378)
>   at
> org.h2.constraint.ConstraintReferential.checkRowRefTable(ConstraintReferential.java:395)
>   at
> org.h2.constraint.ConstraintReferential.checkRow(ConstraintReferential.java:275)
>   at org.h2.table.Table.fireConstraints(Table.java:788)   at
> org.h2.table.Table.fireAfterRow(Table.java:805)   at
> org.h2.command.dml.Delete.update(Delete.java:79)  at
> org.h2.command.CommandContainer.update(CommandContainer.java:70)  at
> org.h2.command.Command.executeUpdate(Command.java:199)    at
> org.h2.jdbc.JdbcPreparedStatement.executeUpdateInternal(JdbcPreparedStatement.java:141)
>   at
> org.h2.jdbc.JdbcPreparedStatement.executeUpdate(JdbcPreparedStatement.java:127)
>   at
> org.hibernate.engine.query.NativeSQLQueryPlan.performExecuteUpdate(NativeSQLQueryPlan.java:210)
>   ... 31 more

Pouvez-vous svp m'aider à déterminer pourquoi ces erreurs se produisent? J'ai essayé tout ce que je pouvais penser, mais avec peu de succès. Toute aide serait grandement appréciée.

OriginalL'auteur George | 2013-11-29