删除的对象将通过级联重新保存（从关联中删除已删除的对象） [英] deleted object would be re-saved by cascade (remove deleted object from associations)

问题描述

我有以下两个实体：

1- PlayList：

  @OneToMany（fetch = FetchType.EAGER，mappedBy =playlist，orphanRemoval = true，cascade = CascadeType.ALL）
 @OrderBy（adOrder）
私人设置< PlaylistadMap> PlaylistadMaps = new HashSet< PlaylistadMap>（0）; 
  

• CascadeType.ALL ：在保存或更新播放列表实体时保存和更新PlaylistadMap集合。


• orphanRemoval = true ：在删除播放列表实体时需要，PlaylistadMap引用应该是
  

2- PlaylistadMap ：

  @ManyToOne（fetch = FetchType.EAGER）
 @JoinColumn（name =fk_playlist，referencedColumnName =pkid，nullable = false）
私人播放列表播放列表; 
  

当使用 getCurrentSession（）。delete（）;删除播放列表时， / code>我收到以下异常：

  org.springframework.dao.InvalidDataAccessApiUsageException：删除的对象将被重新创建 - 通过级联保存（从关联中删除已删除的对象）：[com.xeno.advertisingsuite.web.domain.PlaylistadMap＃6];嵌套的异常是org.hibernate.ObjectDeletedException：删除的对象将被级联重新保存（从关联中删除删除的对象）：[com.xeno.advertisingsuite.web.domain.PlaylistadMap＃6] 
在org.springframework。 orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException（SessionFactoryUtils.java:657）
处org.springframework.orm.hibernate3 org.springframework.orm.hibernate3.HibernateTransactionManager.convertHibernateAccessException（HibernateTransactionManager.java:793）
。 HibernateTransactionManager.doCommit（HibernateTransactionManager.java:664）
在org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit（AbstractPlatformTransactionManager.java:754）
在org.springframework.transaction.support.AbstractPlatformTransactionManager.commit（ AbstractPlatformTransactionManager.java:723）
 at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning（Transa ctionAspectSupport.java:393）
 at org.springframework.transaction.interceptor.TransactionInterceptor.invoke（TransactionInterceptor.java:120）
 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java： 
 at org.springframework.aop.framework.JdkDynamicAopProxy.invoke（JdkDynamicAopProxy.java:202）
 at $ Proxy54.deletePlayList（Unknown Source）
 at com.xeno.advertisingsuite.web .beans.PlayListBean.deletePlaylist（PlayListBean.java:282）
在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）
在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.apache.el.parser .AstValue.invoke（AstValue.java:262）
 at org.apache.el.MethodExpressionImpl.invoke（MethodExpressionImpl.java:278）
 at com.sun.faces.facelets.el.TagMethodExpression.invoke（TagMethodExpression.java:105）
 at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke（MethodBindingMethodExpressionAdapter.java:88）
 ... 103更多
引起：org.hibernate.ObjectDeletedException：删除的对象将被级联重新保存（从关联中删除删除的对象）：[com.xeno.advertisingsuite.web.domain.PlaylistadMap＃6] 
在org.hibernate.impl.SessionImpl.forceFlush（SessionImpl.java:1220）
在org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient（DefaultSaveOrUpdateEventListener.java:188）
在org.hibernate.event .def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate（DefaultSaveOrUpdateEventListener.java:117）
 at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate（DefaultSaveOrUpdateEventListener.java:93）
 at org.hibernate.impl.SessionImpl.fireSaveOrUpdate （SessionImpl.java:677）
在org.hibernat e.impl.SessionImpl.saveOrUpdate（SessionImpl.java:669）
 at org.hibernate.engine.CascadingAction $ 5.cascade（CascadingAction.java:252）
 at org.hibernate.engine.Cascade.cascadeToOne （Cascade.java:392）
 at org.hibernate.engine.Cascade.cascadeAssociation（Cascade.java:335）
 at org.hibernate.engine.Cascade.cascadeProperty（Cascade.java:204）
在org.hibernate.engine.Cascade.cascadeCollectionElements（Cascade.java:425）
在org.hibernate.engine.Cascade.cascadeCollection（Cascade.java:362）
在org.hibernate。 engine.Cascade.cascadeAssociation（Cascade.java:338）
 at org.hibernate.engine.Cascade.cascadeProperty（Cascade.java:204）
 at org.hibernate.engine.Cascade.cascade（Cascade。 Java的：161），美元，org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush（AbstractFlushingEventListener.java:154 b $ b）
在org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes（AbstractFlushingEventListener.java:145） 
在org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions（AbstractFlushingEventListener.java:88）
在org.hibernate.event.def.DefaultFlushEventListener.onFlush（DefaultFlushEventListener.java:50）
在org.hibernate作为.impl.SessionImpl.flush（SessionImpl.java:1206）
 at org.hibernate.impl.SessionImpl.managedFlush（SessionImpl.java:375）
 at org.hibernate.transaction.JDBCTransaction.commit（JDBCTransaction .java：137）
 at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit（HibernateTransactionManager.java:656）
  

请告知如何解决这个异常。

解决方案

更改 FetchType 转换为懒惰


i have the following two entities:

1- PlayList:

@OneToMany(fetch = FetchType.EAGER, mappedBy = "playlist", orphanRemoval = true, cascade =   CascadeType.ALL)
@OrderBy("adOrder")
private Set<PlaylistadMap> PlaylistadMaps = new HashSet<PlaylistadMap>(0);

• CascadeType.ALL: is needed for save and update on the PlaylistadMap collection when saving or updating the playlist entity.
• orphanRemoval = true: is needed when deleting the playlist entity, the PlaylistadMap references should be deleteed too.

2- PlaylistadMap:

@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "fk_playlist", referencedColumnName = "pkid", nullable = false)
private Playlist playlist;

when deleting a playlist by using getCurrentSession().delete(); i am getting the following exception:

org.springframework.dao.InvalidDataAccessApiUsageException: deleted object would be re-saved by cascade (remove deleted object from associations): [com.xeno.advertisingsuite.web.domain.PlaylistadMap#6]; nested exception is org.hibernate.ObjectDeletedException: deleted object would be re-saved by cascade (remove deleted object from associations): [com.xeno.advertisingsuite.web.domain.PlaylistadMap#6]
    at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:657)
    at org.springframework.orm.hibernate3.HibernateTransactionManager.convertHibernateAccessException(HibernateTransactionManager.java:793)
    at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:664)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:754)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:393)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:120)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
    at $Proxy54.deletePlayList(Unknown Source)
    at com.xeno.advertisingsuite.web.beans.PlayListBean.deletePlaylist(PlayListBean.java:282)
    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.apache.el.parser.AstValue.invoke(AstValue.java:262)
    at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:278)
    at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
    at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
    ... 103 more
Caused by: org.hibernate.ObjectDeletedException: deleted object would be re-saved by cascade (remove deleted object from associations): [com.xeno.advertisingsuite.web.domain.PlaylistadMap#6]
    at org.hibernate.impl.SessionImpl.forceFlush(SessionImpl.java:1220)
    at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:188)
    at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:117)
    at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
    at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:677)
    at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:669)
    at org.hibernate.engine.CascadingAction$5.cascade(CascadingAction.java:252)
    at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:392)
    at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:335)
    at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:204)
    at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:425)
    at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:362)
    at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:338)
    at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:204)
    at org.hibernate.engine.Cascade.cascade(Cascade.java:161)
    at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:154)
    at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:145)
    at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:88)
    at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
    at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1206)
    at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:375)
    at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:137)
    at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:656)

please advise how to fix this exception.

解决方案

problem solved after changing the FetchType to Lazy

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