Hibernate JPA双向一对多外键问题

我有两个实体的人员和订单由JPA/Hibernate实体管理器管理。我试图通过如下注释在这两个实体之间创建一个双向一对多关系：

人:

@Id
@Column(name="PERSON_ID")
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "PERSON_SEQ")
@SequenceGenerator(name = "PERSON_SEQ", sequenceName = "PERSON_SEQ")
private Integer personId;

@OneToMany(mappedBy="person", cascade=CascadeType.ALL)
private List<Order> orders = new ArrayList<Order>();

public void addOrder(Order o)
{
    getOrders().add(o);
    o.setPerson(this);
}

然后我测试代码：

@Test
@Transactional
@Rollback(value=false)
public void populateTable() {
    WatchUtil.startTask("Persist Person");

    for (int i = 0; i < 25; i++) {
        Person tmpPerson= new Person();
        tmpPerson.setName("Person1");
        Order order = new Order();
        order.setOrderNumber("Order1");
        tmpPerson.addOrder(order);
        dao.persist(tmpPerson); //calls entitymanager.persist(); does not call flush
    }
    WatchUtil.endTask();
}

@测试
@交易的
@回滚（值=false）
public void populateTable（）{
WatchUtil.startTask（“坚持的人”）；
对于（int i=0；i<25；i++）{
Person tmpPerson=新的Person（）；
tmpPerson.setName（“Person1”）；
订单=新订单（）；
订单。设置订单号（“订单1”）；
tmpPerson.addOrder（订单）；
persist（tmpPerson）；//调用entitymanager.persist（）；不调用flush
}
WatchUtil.endTask（）；
}

这给了我一个约束异常：

2011-04-19 06:25:12,713 INFO [org.springframework.test.context.transaction.TransactionalTestExecutionListener] - <Began transaction (9): transaction manager [org.springframework.orm.jpa.JpaTransactionManager@1f488f1]; rollback [false]>
2011-04-19 06:25:12,713 DEBUG [org.hibernate.SQL] - <insert into PERSON (PERSON_ID, NAME) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)>
2011-04-19 06:25:12,775 DEBUG [org.hibernate.SQL] - <insert into ORDER (ORDER_NUMBER PERSON_ID, ORDER_ID) values (?, ?, ?, ?, ?, ?)>
2011-04-19 06:25:12,947 WARN [org.hibernate.util.JDBCExceptionReporter] - <SQL Error: 2291, SQLState: 23000>
2011-04-19 06:25:12,947 ERROR [org.hibernate.util.JDBCExceptionReporter] - <ORA-02291: integrity constraint (BLUE_SITE.FKE2BCFD5374D88D96) violated - parent key not found>
2011-04-19 06:25:12,947 WARN [org.hibernate.util.JDBCExceptionReporter] - <SQL Error: 2291, SQLState: 23000>
2011-04-19 06:25:12,947 ERROR [org.hibernate.util.JDBCExceptionReporter] - <ORA-02291: integrity constraint (BLUE_SITE.FKE2BCFD5374D88D96) violated - parent key not found>
2011-04-19 06:25:12,947 ERROR [org.hibernate.event.def.AbstractFlushingEventListener] - <Could not synchronize database state with session>
org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
    at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:94)
    at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
    at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275)
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:266)
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167)
    at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
    at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
    at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)
    at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:304)
    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.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:240)
    at $Proxy32.flush(Unknown Source)
    at test.JpaDao.persist(JpaDao.java:37)
    at test.PersonJpaDaoTests.populateTable(MemberJpaDaoTests.java:156)
    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: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.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
    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: java.sql.BatchUpdateException: ORA-02291: integrity constraint (BLUE_SITE.FKE2BCFD5374D88D96) violated - parent key not found
    at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException(DatabaseError.java:367)
    at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:9119)
    at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70)
    at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268)
    ... 44 more
StopWatch '-- DEBUGGING --': running time (millis) = 0

2011-04-19 06:25:12713信息[org.springframework.test.context.transaction.TransactionalTestExecutionListener]-
2011-04-19 06:25:12713调试[org.hibernate.SQL]-
2011-04-19 06:25:12775调试[org.hibernate.SQL]-
2011-04-19 06:25:12947警告[org.hibernate.util.jdbceptionReporter]-
2011-04-19 06:25:12947错误[org.hibernate.util.jdbceptionReporter]-
2011-04-19 06:25:12947警告[org.hibernate.util.jdbceptionReporter]-
2011-04-19 06:25:12947错误[org.hibernate.util.jdbceptionReporter]-
2011-04-19 06:25:12947错误[org.hibernate.event.def.AbstractFlushingEventListener]-
org.hibernate.exception.ConstraintViolationException:无法执行JDBC批更新
位于org.hibernate.exception.sqlstatecoverter.convert（sqlstatecoverter.java:94）
位于org.hibernate.exception.jdbceptionhelper.convert（jdbceptionhelper.java:66）
位于org.hibernate.jdbc.AbstractBatcher.executeBatch（AbstractBatcher.java:275）
位于org.hibernate.engine.ActionQueue.executeActions（ActionQueue.java:266）
位于org.hibernate.engine.ActionQueue.executeActions（ActionQueue.java:167）
位于org.hibernate.event.def.AbstractFlushingEventListener.performExecutions（AbstractFlushingEventListener.java:321）
位于org.hibernate.event.def.DefaultFlushEventListener.onFlush（DefaultFlushEventListener.java:50）
位于org.hibernate.impl.SessionImpl.flush（SessionImpl.java:1027）
位于org.hibernate.ejb.AbstractEntityManagerImpl.flush（AbstractEntityManagerImpl.java:304）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
位于sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:39）
在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:25）中
位于java.lang.reflect.Method.invoke（Method.java:597）
位于org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke（SharedEntityManagerCreator.java:240）
在$Proxy32.flush（未知来源）
在test.JpaDao.persist（JpaDao.java:37）
在test.PersonJpaDaoTests.populateTable上（MemberJpaDaoTests.java:156）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）处
位于sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:39）
在sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:25）中
位于java.lang.reflect.Method.invoke（Method.java:597）
位于org.junit.runners.model.FrameworkMethod$1.runReflectVeCall（FrameworkMethod.java:44）
位于org.junit.internal.runners.model.ReflectiveCallable.run（ReflectiveCallable.java:15）
位于org.junit.runners.model.FrameworkMethod.invokeeexplosive（FrameworkMethod.java:41）
位于org.junit.internal.runners.statements.InvokeMethod.evaluate（InvokeMethod.java:20）
位于org.junit.internal.runners.statements.RunBefores.evaluate（RunBefores.java:28）
位于org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate（RunBeforeTestMethodCallbacks.java:74）
位于org.junit.internal.runners.statements.runafter.evaluate（runafter.java:31）
位于org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate（RunAfterTestMethodCallbacks.java:82）
位于org.springframework.test.context.junit4.statements.SpringRepeat.evaluate（SpringRepeat.java:72）
位于org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild（SpringJUnit4ClassRunner.java:240）
位于org.junit.runners.BlockJUnit4ClassRunner.runChild（BlockJUnit4ClassRunner.java:50）
位于org.junit.runners.ParentRunner$3.run（ParentRunner.java:193）
位于org.junit.runners.ParentRunner$1.schedule（ParentRunner.java:52）
位于org.junit.runners.ParentRunner.runChildren（ParentRunner.java:191）
访问org.junit.runners.ParentRunner.access$000（ParentRunner.java:42）
位于org.junit.runners.ParentRunner$2.evaluate（ParentRunner.java:184）
位于org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate（RunBeforeTestClassCallbacks.java:61）
位于org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate（RunAfterTestClassCallbacks.java:70）
位于org.junit.runners.ParentRunner.run（ParentRunner.java:236）
位于org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run（SpringJUnit4ClassRunner.java:180）
位于org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run（JUnit4TestReference.java:49）
位于org.eclipse.jdt.internal.junit.runner.TestExecution.run（TestExecution.java:38）
位于org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests（RemoteTestRunner.java:467）
位于org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests（RemoteTestRunner.java:683）
位于org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run（RemoteTestRunner.java:390）
位于org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main（RemoteTestRunner.java:197）
原因：java.sql.BatchUpdateException:ORA-02291:违反完整性约束（BLUE_SITE.FKE2BCFD5374D88D96）-未找到父密钥
位于oracle.jdbc.driver.DatabaseError.throwBatchUpdateException（DatabaseError.java:367）
位于oracle.jdbc.driver.OraclePreparedStatement.executeBatch（OraclePreparedStatement.java:9119）
2011-04-19 06:25:12,713 INFO [org.springframework.test.context.transaction.TransactionalTestExecutionListener] - <Began transaction (9): transaction manager [org.springframework.orm.jpa.JpaTransactionManager@1f488f1]; rollback [false]>
2011-04-19 06:25:12,713 DEBUG [org.hibernate.SQL] - <insert into PERSON (PERSON_ID, NAME) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)>
2011-04-19 06:25:12,775 DEBUG [org.hibernate.SQL] - <insert into ORDER (ORDER_NUMBER PERSON_ID, ORDER_ID) values (?, ?, ?, ?, ?, ?)>
2011-04-19 06:25:12,947 WARN [org.hibernate.util.JDBCExceptionReporter] - <SQL Error: 2291, SQLState: 23000>
2011-04-19 06:25:12,947 ERROR [org.hibernate.util.JDBCExceptionReporter] - <ORA-02291: integrity constraint (BLUE_SITE.FKE2BCFD5374D88D96) violated - parent key not found>
2011-04-19 06:25:12,947 WARN [org.hibernate.util.JDBCExceptionReporter] - <SQL Error: 2291, SQLState: 23000>
2011-04-19 06:25:12,947 ERROR [org.hibernate.util.JDBCExceptionReporter] - <ORA-02291: integrity constraint (BLUE_SITE.FKE2BCFD5374D88D96) violated - parent key not found>
2011-04-19 06:25:12,947 ERROR [org.hibernate.event.def.AbstractFlushingEventListener] - <Could not synchronize database state with session>
org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
    at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:94)
    at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
    at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275)
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:266)
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167)
    at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
    at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
    at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)
    at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:304)
    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.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:240)
    at $Proxy32.flush(Unknown Source)
    at test.JpaDao.persist(JpaDao.java:37)
    at test.PersonJpaDaoTests.populateTable(MemberJpaDaoTests.java:156)
    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: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.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:240)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:180)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
    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: java.sql.BatchUpdateException: ORA-02291: integrity constraint (BLUE_SITE.FKE2BCFD5374D88D96) violated - parent key not found
    at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException(DatabaseError.java:367)
    at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:9119)
    at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70)
    at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268)
    ... 44 more
StopWatch '-- DEBUGGING --': running time (millis) = 0