[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2656) Using EntityMode.DOM4J results in an exception when mapping more than one collection to the root node (node=".")
Stefan Schedl (JIRA)
noreply at atlassian.com
Wed Aug 5 08:48:12 EDT 2009
[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33702#action_33702 ]
Stefan Schedl commented on HHH-2656:
------------------------------------
I have the same problem with hibernate core 3.3.2. I tried the above patch, but i need to modify it.
my solution is
public Object fromXMLNode(Node xml, Mapping factory) throws HibernateException {
Element newXML = (Element)xml.clone();
newXML.content().clear();
newXML.attributes().clear();
newXML.attributes().addAll(((Element)xml).attributes());
newXML.content().addAll(((Element)xml).content());
newXML.setDocument(xml.getDocument());
return newXML;
}
> Using EntityMode.DOM4J results in an exception when mapping more than one collection to the root node (node=".")
> ----------------------------------------------------------------------------------------------------------------
>
> Key: HHH-2656
> URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2656
> Project: Hibernate Core
> Issue Type: Bug
> Components: core
> Affects Versions: 3.2.4.sp1
> Environment: Hibernate 3.2.4 SP1, tested with MySQL 5.0.
> Reporter: Andries Schutte
>
> When mapping multiple collections to the root node, an exception results (mapping and exception stack trace is shown below). This works fine if only one collection is mapped to the root node, or if one explicitly specifies unique names for each collection parent node. We are unfortunately restricted by having to use customer-defined XSDs, so this is a show-stopper for us.
> <?xml version="1.0"?>
> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
> "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
> <hibernate-mapping>
> <class entity-name="ProcessImpl" table="PROCESSES" node="Process">
> <id name="sysID" column="PROCESS_ID" node="sysID" type="string"/>
> <property name="version" column="PROCESS_VERSION" node="version" type="string"/>
> <property name="processType" column="PROCESS_TYPE" node="processType" type="string"/>
> <property name="status" column="PROCESS_STATE" node="status" type="string"/>
> <property name="createDate" column="PROCESS_CREATE_DATE" node="createDate" type="timestamp"/>
> <property name="creator" column="PROCESS_CREATOR" node="creator" type="string"/>
> <property name="transactionNumber" column="PROCESS_TX_NUMBER" node="transactionNumber" type="long"/>
> <property name="modifiedDate" column="PROCESS_MOD_DATE" node="modifiedDate" type="timestamp"/>
> <property name="modifier" column="PROCESS_MODIFIER" node="modifier" type="string"/>
> <property name="title" column="PROCESS_TITLE" node="title" type="string"/>
> <property name="timer" column="PROCESS_TIMER" node="timer" type="string"/>
> <property name="currentCSTime" column="PROCESS_CS_TIME" node="currentCSTime" type="timestamp"/>
> <bag name="requiredActivities"
> table="REQ_ACTIVITIES" node = "." embed-xml="true" lazy="false" cascade="all">
> <key column="PROCESS_ID" not-null="true"/>
> <element column="REQ_ACTIVITY" type="text" node="requiredActivity"/>
> </bag>
> <bag name="retractedGuidelines"
> table="RET_GUIDELINES" node = "." embed-xml="true" lazy="false" cascade="all">
> <key column="PROCESS_ID" not-null="true"/>
> <element column="RET_GUIDELINE" type="text" node="retractedGuideline"/>
> </bag>
>
> <set name="suspendedGuidelines"
> node = "." embed-xml="true" lazy="false" cascade="all">
> <key column="PROCESS_ID" not-null="true"/>
> <one-to-many entity-name="SuspendedGuidelineImpl"
> embed-xml="true" node="suspendedGuideline"/>
> </set>
>
> </class>
> </hibernate-mapping>
> Exception stack trace:
> [6/6/07 22:11:41:246 GMT] 00000012 SystemErr R org.hibernate.HibernateException: Found shared references to a collection: ProcessImpl.retractedGuidelines
> at org.hibernate.engine.Collections.processReachableCollection(Collections.java:163)
> at org.hibernate.event.def.FlushVisitor.processCollection(FlushVisitor.java:37)
> at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:101)
> at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:61)
> at org.hibernate.event.def.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:55)
> at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:131)
> at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:196)
> at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
> at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
> at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
> at com.resonant.persistence.ExternalDataMgrHibernateDom4jImpl.persistHibernateEntity(ExternalDataMgrHibernateDom4jImpl.java:194)
> at com.resonant.persistence.ExternalDataMgrHibernateDom4jImpl.store(ExternalDataMgrHibernateDom4jImpl.java:172)
> at com.resonant.persistence.PersistenceHibernateDom4jImpl.storeObject(PersistenceHibernateDom4jImpl.java:215)
> at com.resonant.persistence.ejb.PersistenceLocalBean.storeObject(PersistenceLocalBean.java:192)
> at com.resonant.persistence.ejb.EJSLocalStatelessPersistenceLocalEJB_68e55914.storeObject(EJSLocalStatelessPersistenceLocalEJB_68e55914.java:1179)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:615)
> at org.springframework.ejb.access.LocalSlsbInvokerInterceptor.invoke(LocalSlsbInvokerInterceptor.java:65)
> at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:161)
> at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
> at $Proxy2.storeObject(Unknown Source)
> at com.resonant.hub.processmanager.ProcessHubImpl.startProcess(ProcessHubImpl.java:179)
> at com.resonant.hub.processmanager.ejb.ProcessHubBean.startProcess(ProcessHubBean.java:138)
> at com.resonant.hub.processmanager.ejb.EJSRemoteStatelessProcessHubEJB_f45832db.startProcess(EJSRemoteStatelessProcessHubEJB_f45832db.java:208)
> at com.resonant.hub.processmanager.ejb._EJSRemoteStatelessProcessHubEJB_f45832db_Tie.startProcess(_EJSRemoteStatelessProcessHubEJB_f45832db_Tie.java:261)
> at com.resonant.hub.processmanager.ejb._EJSRemoteStatelessProcessHubEJB_f45832db_Tie._invoke(_EJSRemoteStatelessProcessHubEJB_f45832db_Tie.java:122)
> at com.ibm.CORBA.iiop.ServerDelegate.dispatchInvokeHandler(ServerDelegate.java:613)
> at com.ibm.CORBA.iiop.ServerDelegate.dispatch(ServerDelegate.java:466)
> at com.ibm.rmi.iiop.ORB.process(ORB.java:503)
> at com.ibm.CORBA.iiop.ORB.process(ORB.java:1552)
> at com.ibm.rmi.iiop.Connection.respondTo(Connection.java:2673)
> at com.ibm.rmi.iiop.Connection.doWork(Connection.java:2551)
> at com.ibm.rmi.iiop.WorkUnitImpl.doWork(WorkUnitImpl.java:62)
> at com.ibm.ejs.oa.pool.PooledThread.run(ThreadPool.java:95)
> at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1510)
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