Hibernate ConstraintViolationException in Join-Tabelle

Ich renne in eine ConstraintViolationException, wenn ich versuche, ein Objekt mit einer @ OneToMany-Karte darin zu speichern. Hibernate scheint entweder zu denken, dass ich versuche, einen NULL in die Mapped-Liste zu setzen oder es selbst dort zu platzieren. Das Problem scheint sporadisch zu passieren: Mit einigen Datenbanken ist es leicht reproduzierbar, aber mit anderen kann ich es nicht passieren.Hibernate ConstraintViolationException in Join-Tabelle

Ich bin sowohl bei den Hibernate- als auch den Hibernate-Annotationen ein Anfänger, so dass jede Hilfe sehr geschätzt wird.

Ich habe zwei Klassen: Kamera und AlarmZone (die eine 3. Klasse, Zone erweitert). Camera enthält unter anderem eine Liste von IDs von AlarmZone-Objekten. Hier sind die Klassendeklarationen:

@Entity 
@Inheritance(strategy = InheritanceType.JOINED) 
@Table(name = "cameras") 
public class Camera 
{ 
    private Serializable id; 

    private List<Serializable> alarm_zones = new ArrayList<Serializable>(); 

    ... 

    @Id(generate = GeneratorType.SEQUENCE) 
    @Type(type = "java.lang.Long") 
    public java.io.Serializable getId() 
    { 
     return this.id; 
    } 

    public void setId(java.io.Serializable id) 
    { 
     this.id = id; 
    } 

    @OneToMany(targetEntity = java.lang.Long.class, fetch = FetchType.EAGER) 
    @JoinTable(table = @Table(name = "cameraalarmzones")) 
    public List<Serializable> getAlarmZones() 
    { 
     return alarm_zones; 
    } 

    public void setAlarmZones(List<Serializable> alarm_zones) 
    { 
     this.alarm_zones = alarm_zones; 
    } 

    ... 
} 

@Entity 
@Inheritance(strategy = InheritanceType.JOINED) 
@Table(name = "zones") 
public class Zone 
{ 
    private Serializable id; 

    ... 

    @Id(generate = GeneratorType.SEQUENCE) 
    @Type(type = "java.lang.Long") 
    public java.io.Serializable getId() 
    { 
     return this.id; 
    } 

    public void setId(java.io.Serializable id) 
    { 
     this.id = id; 
    } 
} 

@Entity 
@Table(name = "alarmzones") 
public class AlarmZone extends Zone 
{ 
    ... 
}

Jedes Mal, wenn ich ein Objekt speichern, verwende ich, was ich verstehe Textvorschlag werden, um Code zu begehen:

public Persistable makePersistent(Object entity) 
{ 
    try 
    { 
     Hibernate.getSession().beginTransaction(); 
     Hibernate.getSession().saveOrUpdate(entity); 
     Hibernate.getSession().flush(); 
     Hibernate.getSession().getTransaction().commit(); 
    } catch (RuntimeException e) 
    { 
     Hibernate.getSession().getTransaction().rollback(); 
     logger.error("makePersistent(" + entity.getClass().getSimpleName() 
       + ")", e); 
    } 
    return entity; 
}

Das Problem tritt auf, wenn ich eine AlarmZone speichern, dann seine ID setzte in die Liste der Kamera und versuchen Sie, die Kamera zu speichern. Um bessere Debug-Informationen zu erhalten, folgte ich dem Rat von https://forum.hibernate.org/viewtopic.php?p=2220295&sid=a7ccc3be32137436c8062a99c8372a9e und legte meine Batch-Größe auf 0 und aktiviert debugging DEBUG-Ebene in log4j. Hier ist der Stack-Trace für den Fehler (zusammen mit den vorangehenden Zeilen):

[2009-10-23 14:33:07,606] DEBUG [http-8443-Processor25] (AbstractCollectionPersister.java:947) - Deleting collection: [x.y.z.Camera.alarmZones#641] 
[2009-10-23 14:33:07,606] DEBUG [http-8443-Processor25] (AbstractBatcher.java:311) - about to open PreparedStatement (open PreparedStatements: 0, globally: 0) 
[2009-10-23 14:33:07,606] DEBUG [http-8443-Processor25] (AbstractBatcher.java:346) - delete from cameraalarmzones where cameras_id=? 
[2009-10-23 14:33:07,606] DEBUG [http-8443-Processor25] (AbstractBatcher.java:424) - preparing statement 
[2009-10-23 14:33:07,606] DEBUG [http-8443-Processor25] (NullableType.java:79) - binding '641' to parameter: 1 
[2009-10-23 14:33:07,606] DEBUG [http-8443-Processor25] (AbstractCollectionPersister.java:977) - done deleting collection 
[2009-10-23 14:33:07,606] DEBUG [http-8443-Processor25] (AbstractCollectionPersister.java:999) - Inserting collection: [x.y.z.Camera.alarmZones#641] 
[2009-10-23 14:33:07,606] DEBUG [http-8443-Processor25] (AbstractBatcher.java:319) - about to close PreparedStatement (open PreparedStatements: 1, globally: 1) 
[2009-10-23 14:33:07,606] DEBUG [http-8443-Processor25] (AbstractBatcher.java:470) - closing statement 
[2009-10-23 14:33:07,606] DEBUG [http-8443-Processor25] (AbstractBatcher.java:311) - about to open PreparedStatement (open PreparedStatements: 0, globally: 0) 
[2009-10-23 14:33:07,622] DEBUG [http-8443-Processor25] (AbstractBatcher.java:346) - insert into cameraalarmzones (cameras_id, elt) values (?, ?) 
[2009-10-23 14:33:07,622] DEBUG [http-8443-Processor25] (AbstractBatcher.java:424) - preparing statement 
[2009-10-23 14:33:07,622] DEBUG [http-8443-Processor25] (NullableType.java:79) - binding '641' to parameter: 1 
[2009-10-23 14:33:07,622] DEBUG [http-8443-Processor25] (NullableType.java:79) - binding '649' to parameter: 2 
[2009-10-23 14:33:07,622] DEBUG [http-8443-Processor25] (AbstractBatcher.java:319) - about to close PreparedStatement (open PreparedStatements: 1, globally: 1) 
[2009-10-23 14:33:07,622] DEBUG [http-8443-Processor25] (AbstractBatcher.java:470) - closing statement 
[2009-10-23 14:33:07,637] DEBUG [http-8443-Processor25] (JDBCExceptionReporter.java:63) - could not insert collection: [x.y.z.Camera.alarmZones#641] [insert into cameraalarmzones (cameras_id, elt) values (?, ?)] 
java.sql.SQLException: Attempt to insert null into a non-nullable column: column: ALARMZONES table: CAMERAALARMZONES in statement [insert into cameraalarmzones (cameras_id, elt) values (?, ?)] 
    at org.hsqldb.jdbc.Util.throwError(Unknown Source) 
    at org.hsqldb.jdbc.jdbcPreparedStatement.executeUpdate(Unknown Source) 
    at org.hibernate.jdbc.NonBatchingBatcher.addToBatch(NonBatchingBatcher.java:23) 
    at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1039) 
    at org.hibernate.action.CollectionUpdateAction.execute(CollectionUpdateAction.java:51) 
    at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:243) 
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:227) 
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:143) 
    at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:296) 
    at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27) 
    at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980) 
    at sun.reflect.GeneratedMethodAccessor56.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:292) 
    at $Proxy25.flush(Unknown Source) 
    at com.silkspeed.ssparts.server.PersistableDAOImpl.makePersistent(PersistableDAOImpl.java:82) 
    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.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:292) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:155) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:122) 
    at org.springframework.remoting.support.RemoteInvocationTraceInterceptor.invoke(RemoteInvocationTraceInterceptor.java:68) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:174) 
    at $Proxy38.makePersistent(Unknown Source) 
    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.remoting.support.RemoteInvocation.invoke(RemoteInvocation.java:179) 
    at org.springframework.remoting.support.DefaultRemoteInvocationExecutor.invoke(DefaultRemoteInvocationExecutor.java:33) 
    at org.springframework.remoting.support.RemoteInvocationBasedExporter.invoke(RemoteInvocationBasedExporter.java:76) 
    at org.springframework.remoting.support.RemoteInvocationBasedExporter.invokeAndCreateResult(RemoteInvocationBasedExporter.java:112) 
    at org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter.handleRequest(HttpInvokerServiceExporter.java:80) 
    at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:44) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:684) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:625) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:392) 
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:357) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) 
    at x.y.z.server.SessionInfo.doFilter(SessionInfo.java:91) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) 
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874) 
    at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) 
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) 
    at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) 
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) 
    at java.lang.Thread.run(Thread.java:619) 
[2009-10-23 14:33:07,637] WARN [http-8443-Processor25] (JDBCExceptionReporter.java:71) - SQL Error: -10, SQLState: 23000 
[2009-10-23 14:33:07,637] ERROR [http-8443-Processor25] (JDBCExceptionReporter.java:72) - Attempt to insert null into a non-nullable column: column: ALARMZONES table: CAMERAALARMZONES in statement [insert into cameraalarmzones (cameras_id, elt) values (?, ?)] 
[2009-10-23 14:33:07,637] ERROR [http-8443-Processor25] (AbstractFlushingEventListener.java:299) - Could not synchronize database state with session 
org.hibernate.exception.ConstraintViolationException: could not insert collection: [x.y.z.Camera.alarmZones#641] 
    at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:69) 
    at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) 
    at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1058) 
    at org.hibernate.action.CollectionUpdateAction.execute(CollectionUpdateAction.java:51) 
    at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:243) 
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:227) 
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:143) 
    at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:296) 
    at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27) 
    at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980) 
    at sun.reflect.GeneratedMethodAccessor56.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:292) 
    at $Proxy25.flush(Unknown Source) 
    at com.silkspeed.ssparts.server.PersistableDAOImpl.makePersistent(PersistableDAOImpl.java:82) 
    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.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:292) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:155) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:122) 
    at org.springframework.remoting.support.RemoteInvocationTraceInterceptor.invoke(RemoteInvocationTraceInterceptor.java:68) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:174) 
    at $Proxy38.makePersistent(Unknown Source) 
    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.remoting.support.RemoteInvocation.invoke(RemoteInvocation.java:179) 
    at org.springframework.remoting.support.DefaultRemoteInvocationExecutor.invoke(DefaultRemoteInvocationExecutor.java:33) 
    at org.springframework.remoting.support.RemoteInvocationBasedExporter.invoke(RemoteInvocationBasedExporter.java:76) 
    at org.springframework.remoting.support.RemoteInvocationBasedExporter.invokeAndCreateResult(RemoteInvocationBasedExporter.java:112) 
    at org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter.handleRequest(HttpInvokerServiceExporter.java:80) 
    at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:44) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:684) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:625) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:392) 
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:357) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) 
    at x.y.z.server.SessionInfo.doFilter(SessionInfo.java:91) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) 
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874) 
    at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) 
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) 
    at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) 
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) 
    at java.lang.Thread.run(Thread.java:619) 
Caused by: java.sql.SQLException: Attempt to insert null into a non-nullable column: column: ALARMZONES table: CAMERAALARMZONES in statement [insert into cameraalarmzones (cameras_id, elt) values (?, ?)] 
    at org.hsqldb.jdbc.Util.throwError(Unknown Source) 
    at org.hsqldb.jdbc.jdbcPreparedStatement.executeUpdate(Unknown Source) 
    at org.hibernate.jdbc.NonBatchingBatcher.addToBatch(NonBatchingBatcher.java:23) 
    at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1039) 
    ... 58 more 
[2009-10-23 14:33:07,637] DEBUG [http-8443-Processor25] (JDBCTransaction.java:152) - rollback 
[2009-10-23 14:33:07,637] DEBUG [http-8443-Processor25] (JDBCTransaction.java:193) - re-enabling autocommit 
[2009-10-23 14:33:07,637] DEBUG [http-8443-Processor25] (JDBCTransaction.java:163) - rolled back JDBC Connection 
[2009-10-23 14:33:07,637] DEBUG [http-8443-Processor25] (JDBCContext.java:207) - after transaction completion 
[2009-10-23 14:33:07,637] DEBUG [http-8443-Processor25] (ConnectionManager.java:296) - aggressively releasing JDBC connection 
[2009-10-23 14:33:07,637] DEBUG [http-8443-Processor25] (ConnectionManager.java:333) - closing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)] 
[2009-10-23 14:33:07,637] DEBUG [http-8443-Processor25] (DriverManagerConnectionProvider.java:129) - returning connection to pool, pool size: 1 
[2009-10-23 14:33:07,637] DEBUG [http-8443-Processor25] (SessionImpl.java:434) - after transaction completion 
[2009-10-23 14:33:07,637] DEBUG [http-8443-Processor25] (SessionImpl.java:368) - automatically closing session 
[2009-10-23 14:33:07,637] DEBUG [http-8443-Processor25] (SessionImpl.java:296) - closing session 
[2009-10-23 14:33:07,637] DEBUG [http-8443-Processor25] (ConnectionManager.java:267) - connection already null in cleanup : no action 
[2009-10-23 14:33:07,637] ERROR [http-8443-Processor25] (PersistableDAOImpl.java:87) - makePersistent(Camera) 
org.hibernate.exception.ConstraintViolationException: could not insert collection: [x.y.z.Camera.alarmZones#641] 
    at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:69) 
    at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) 
    at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1058) 
    at org.hibernate.action.CollectionUpdateAction.execute(CollectionUpdateAction.java:51) 
    at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:243) 
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:227) 
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:143) 
    at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:296) 
    at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27) 
    at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980) 
    at sun.reflect.GeneratedMethodAccessor56.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
    at java.lang.reflect.Method.invoke(Method.java:597) 
    at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:292) 
    at $Proxy25.flush(Unknown Source) 
    at com.silkspeed.ssparts.server.PersistableDAOImpl.makePersistent(PersistableDAOImpl.java:82) 
    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.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:292) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:155) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:122) 
    at org.springframework.remoting.support.RemoteInvocationTraceInterceptor.invoke(RemoteInvocationTraceInterceptor.java:68) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:144) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:174) 
    at $Proxy38.makePersistent(Unknown Source) 
    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.remoting.support.RemoteInvocation.invoke(RemoteInvocation.java:179) 
    at org.springframework.remoting.support.DefaultRemoteInvocationExecutor.invoke(DefaultRemoteInvocationExecutor.java:33) 
    at org.springframework.remoting.support.RemoteInvocationBasedExporter.invoke(RemoteInvocationBasedExporter.java:76) 
    at org.springframework.remoting.support.RemoteInvocationBasedExporter.invokeAndCreateResult(RemoteInvocationBasedExporter.java:112) 
    at org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter.handleRequest(HttpInvokerServiceExporter.java:80) 
    at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:44) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:684) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:625) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:392) 
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:357) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) 
    at x.y.z.server.SessionInfo.doFilter(SessionInfo.java:91) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) 
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874) 
    at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) 
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) 
    at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) 
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) 
    at java.lang.Thread.run(Thread.java:619) 
Caused by: java.sql.SQLException: Attempt to insert null into a non-nullable column: column: ALARMZONES table: CAMERAALARMZONES in statement [insert into cameraalarmzones (cameras_id, elt) values (?, ?)] 
    at org.hsqldb.jdbc.Util.throwError(Unknown Source) 
    at org.hsqldb.jdbc.jdbcPreparedStatement.executeUpdate(Unknown Source) 
    at org.hibernate.jdbc.NonBatchingBatcher.addToBatch(NonBatchingBatcher.java:23) 
    at org.hibernate.persister.collection.AbstractCollectionPersister.recreate(AbstractCollectionPersister.java:1039) 
    ... 58 more

Hier ist meine Hibernate Config-Datei:

<property name="connection.driver_class">org.hsqldb.jdbcDriver</property> 
    <property name="connection.url">jdbc:hsqldb:file:dbfilename;shutdown=true</property> 
    <property name="connection.username">*************</property> 
    <property name="connection.password">*************</property> 
    <property name="connection.autocommit">true</property> 

    <!-- JDBC connection pool (use the built-in) --> 
    <property name="connection.pool_size">1</property> 

    <!-- SQL dialect --> 
    <property name="dialect">org.hibernate.dialect.HSQLDialect</property> 

    <!-- Enable Hibernate's automatic session context management --> 
    <property name="current_session_context_class">thread</property> 

    <!-- Disable the second-level cache --> 
    <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property> 

    <!-- Echo all executed SQL to stdout --> 
    <property name="show_sql">false</property> 

<property name="hibernate.jdbc.batch_size">0</property> 
<property name="hibernate.jdbc.fetch_size">0</property> 

    <!-- Drop and re-create the database schema on startup --> 
<property name="hbm2ddl.auto">update</property> 


<mapping class="com.silkspeed.sightlogix.cs.AlarmZone"/> 
<mapping class="com.silkspeed.sightlogix.cs.Camera" /> 
<mapping class="com.silkspeed.sightlogix.cs.Zone"/> 

...

Vielen Dank im Voraus.

Quelle

2009-10-23 Seth

Es gibt mehrere Probleme mit Ihrem Code:

Sie haben ids als Serializable erklärt anstelle von einfachen long (oder Long). Warum?
Sie sollten tatsächliche Zone (oder AlarmZone wenn Sie möchten) Instanzen in Ihrer OneToMany-Beziehung anstelle von IDs zuordnen. Es gibt keine Notwendigkeit für eine Zwischentabelle, es sei denn, die Beziehung ist wirklich ManyToMany, in diesem Fall sollte sie als solche zugeordnet werden (kann eine einzelne AlarmZone zu mehr als einer Kamera gehören? Wenn ja, ist es eine Viele-zu-Viele-Beziehung).
Sie haben Vererbung Annotation auf Ihrer Camera Einheit. Warum? Gehört es zu einer anderen Hierarchie?
Der "Boilerplate" Code, den Sie verwenden, ist schlecht. Transaktion sollte eine entire unit of work, nicht einzelne Entität einschließen. Explizites Spülen ist nicht notwendig.

Beispiel Mapping:

@Entity 
@Inheritance(strategy = InheritanceType.JOINED) 
@Table(name = "cameras") 
public class Camera { 
    private long id; 
    private List<AlarmZone> alarm_zones = new ArrayList<AlarmZone>(); 

    @SequenceGenerator(name="Camera_Gen", sequenceName="cameras_seq") 
    @Id @GeneratedValue(generator="Camera_Gen")  
    public long getId() { 
     return this.id; 
    } 

    @OneToMany(mappedBy="camera") // this maps a bi-directional relationship 
    public List<AlarmZone> getAlarmZones() { 
     return alarm_zones; 
    } 

    ... 
} 

@Entity 
@Inheritance(strategy = InheritanceType.JOINED) 
@Table(name = "zones") 
public class Zone { 
    // same deal as above 
    ... 
} 

@Entity 
@Table(name = "alarmzones") 
public class AlarmZone extends Zone { 
    private Camera camera; 

    @ManyToOne 
    public Camera getCamera() { 
    return this.camera; 
    } 
}

Details zu identifier mapping und association mapping.

Quelle

2009-10-23 21:28:14 ChssPly76

Danke für die Tipps.Sie sind sehr geschätzt. Ich stimme definitiv zu, dass eine Liste von tatsächlichen AlarmZone-Objekten der Weg zu gehen ist, aber ich habe nicht wirklich genug Zeit, um die erforderlichen Änderungen an der Codebasis vorzunehmen. Haben Sie eine Idee, was die Ausnahme bei der Join-Tabelle verursachen könnte? – Seth

Ich will nicht ein Idiot sein, aber wenn du jetzt nicht die Zeit hast, es richtig zu machen, wie wirst du die Zeit später finden (wenn du mehr Sachen daraus gebaut hast)? Das Problem mit AlarmZone IDs ist, dass Long keine Entität ist; Sie können IDs nicht als @OneToMany zuordnen. Die einzige Möglichkeit, sie zuzuordnen, ist über @CollectionOfElements - siehe 2.4.6.2.5 Abschnitt Hibernate Annotations für ein Beispiel. – ChssPly76

Leider gibt es Umstände außerhalb meiner Kontrolle, die mich daran hindern, es jetzt richtig zu machen (insbesondere, den Code umzufunktionieren, um eine volle Arbeitseinheit einzuschließen und die Kamera-Klasse so zu ändern, dass die tatsächlichen AlarmZonen wesentlich länger dauern als ich. Dieser schlechte Boilerplate-Code wird durch die gesamte App verstreut). – Seth

Hibernate ConstraintViolationException in Join-Tabelle

Antwort

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