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Author Message
sigirisetti
 Post subject: Help needed on many-to-many mappings
PostPosted: Sat Jun 18, 2005 12:23 pm 
Newbie

Joined: Wed Jun 30, 2004 4:50 am
Posts: 12
Need help with Hibernate? Read this first:
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Hi Gurus,

I am facing a problem in many-to-many object relationships. I couldnt able to pin point where I am going wrong. Please let me know if you could see it. Appriciate greatly your help.


Thanks alot.


Hibernate version: 3.0.2

Mapping documents:
<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping
>
<class
name="com.mintnovate.core.security.User"
table="CM_USER"
dynamic-update="true"
>

<id
name="id"
column="id"
type="java.lang.String"
length="32"
unsaved-value="null"
>
<generator class="assigned">
<!--
To add non XDoclet generator parameters, create a file named
hibernate-generator-params-User.xml
containing the additional parameters and place it in your merge dir.
-->
</generator>
</id>

<property
name="name"
type="java.lang.String"
update="true"
insert="true"
column="name"
length="32"
not-null="true"
/>

<property
name="password"
type="java.lang.String"
update="true"
insert="true"
column="password"
length="60"
not-null="true"
/>

<property
name="userId"
type="java.lang.String"
update="false"
insert="true"
column="USER_ID"
length="32"
not-null="true"
unique="true"
/>

<property
name="type"
type="int"
update="false"
insert="true"
column="type"
not-null="true"
/>

<set
name="groups"
table="CM_USER_GROUP_MAP"
lazy="true"
inverse="true"
cascade="save-update"
sort="unsorted"
>

<key
column="USER_ID"
>
</key>

<many-to-many
class="com.mintnovate.core.security.Group"
column="ID"
outer-join="auto"
/>

</set>

<!--
To add non XDoclet property mappings, create a file named
hibernate-properties-User.xml
containing the additional properties and place it in your merge dir.
-->

</class>

</hibernate-mapping>

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping
>
<class
name="com.mintnovate.core.security.Group"
table="CM_GROUP"
dynamic-update="true"
>

<id
name="id"
column="id"
type="java.lang.String"
length="32"
unsaved-value="null"
>
<generator class="assigned">
<!--
To add non XDoclet generator parameters, create a file named
hibernate-generator-params-Group.xml
containing the additional parameters and place it in your merge dir.
-->
</generator>
</id>

<property
name="name"
type="java.lang.String"
update="true"
insert="true"
column="name"
length="32"
not-null="true"
/>

<property
name="description"
type="java.lang.String"
update="true"
insert="true"
column="description"
length="32"
not-null="true"
/>

<set
name="members"
table="CM_USER_GROUP_MAP"
lazy="true"
cascade="save-update"
sort="unsorted"
>

<key
column="GROUP_ID"
>
</key>

<many-to-many
class="com.mintnovate.core.security.User"
column="ID"
outer-join="auto"
/>

</set>

<!--
To add non XDoclet property mappings, create a file named
hibernate-properties-Group.xml
containing the additional properties and place it in your merge dir.
-->

</class>

</hibernate-mapping>

Code between sessionFactory.openSession() and session.close():

public static void updateUserGroups(String id, String[] groupIds) {

Session session = ThreadLocalSession.currentSession();
TransactionManager.beginTransaction();
User user = loadUser(id);
Set groups = new HashSet(groupIds.length);
for(int i = 0; i < groupIds.length; i++) {
Group group = new Group();
group.setId(groupIds[i]);
groups.add(groups);
}
user.setGroups(groups);
Persister.update(user);
TransactionManager.commit();
}

Full stack trace of any exception that occurs:

[6/18/05 11:56:14:975 SGT] 2beac8c7 BasicProperty E org.hibernate.property.BasicPropertyAccessor IllegalArgumentException in class: com.mintnovate.core.security.Group, getter method of property: id
[6/18/05 11:56:14:995 SGT] 2beac8c7 RequestProces W org.apache.struts.action.RequestProcessor Unhandled Exception thrown: class org.hibernate.PropertyAccessException
[6/18/05 11:56:15:446 SGT] 2beac8c7 TransactionMa I com.mintnovate.core.or.TransactionManager Pending transaction associated with current thread is cleared.
[6/18/05 11:56:15:446 SGT] 2beac8c7 BasicProperty E org.hibernate.property.BasicPropertyAccessor IllegalArgumentException in class: com.mintnovate.core.security.Group, getter method of property: id
[6/18/05 11:56:15:446 SGT] 2beac8c7 SessionTracki E com.mintnovate.core.web.SessionTrackingFilter org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.mintnovate.core.security.Group.id
[6/18/05 11:56:15:486 SGT] 2beac8c7 SessionTracki E com.mintnovate.core.web.SessionTrackingFilter TRAS0014I: The following exception was logged org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.mintnovate.core.security.Group.id
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:119)
at org.hibernate.tuple.AbstractTuplizer.getIdentifier(AbstractTuplizer.java:103)
at org.hibernate.persister.entity.BasicEntityPersister.getIdentifier(BasicEntityPersister.java:2925)
at org.hibernate.persister.entity.BasicEntityPersister.isTransient(BasicEntityPersister.java:2691)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181)
at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:408)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:82)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:69)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:432)
at org.hibernate.engine.Cascades$5.cascade(Cascades.java:153)
at org.hibernate.engine.Cascades.cascade(Cascades.java:721)
at org.hibernate.engine.Cascades.cascadeCollection(Cascades.java:860)
at org.hibernate.engine.Cascades.cascade(Cascades.java:739)
at org.hibernate.engine.Cascades.cascade(Cascades.java:817)
at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:121)
at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:112)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:59)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:678)
at com.mintnovate.core.or.ThreadLocalSession.flushSession(ThreadLocalSession.java:50)
at com.mintnovate.core.web.SessionTrackingFilter.clearSession(SessionTrackingFilter.java:76)
at com.mintnovate.core.web.SessionTrackingFilter.doFilter(SessionTrackingFilter.java:68)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:132)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:71)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:974)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:564)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:200)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:119)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:276)
at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:618)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:439)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:672)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:105)
... 35 more
.
org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.mintnovate.core.security.Group.id
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:119)
at org.hibernate.tuple.AbstractTuplizer.getIdentifier(AbstractTuplizer.java:103)
at org.hibernate.persister.entity.BasicEntityPersister.getIdentifier(BasicEntityPersister.java:2925)
at org.hibernate.persister.entity.BasicEntityPersister.isTransient(BasicEntityPersister.java:2691)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181)
at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:408)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:82)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:69)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:432)
at org.hibernate.engine.Cascades$5.cascade(Cascades.java:153)
at org.hibernate.engine.Cascades.cascade(Cascades.java:721)
at org.hibernate.engine.Cascades.cascadeCollection(Cascades.java:860)
at org.hibernate.engine.Cascades.cascade(Cascades.java:739)
at org.hibernate.engine.Cascades.cascade(Cascades.java:817)
at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:121)
at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:112)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:59)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:678)
at com.mintnovate.core.or.ThreadLocalSession.flushSession(ThreadLocalSession.java:50)
at com.mintnovate.core.web.SessionTrackingFilter.clearSession(SessionTrackingFilter.java:76)
at com.mintnovate.core.web.SessionTrackingFilter.doFilter(SessionTrackingFilter.java:68)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:132)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:71)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:974)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:564)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:200)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:119)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:276)
at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:618)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:439)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:672)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:105)
... 35 more

[6/18/05 11:56:15:516 SGT] 2beac8c7 SessionTracki I com.mintnovate.core.web.SessionTrackingFilter Session associated with current thread is closed successfully
[6/18/05 11:56:15:696 SGT] 2beac8c7 WebGroup E SRVE0026E: [Servlet Error]-[IllegalArgumentException occurred calling getter of com.mintnovate.core.security.Group.id]: org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.mintnovate.core.security.Group.id
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:119)
at org.hibernate.tuple.AbstractTuplizer.getIdentifier(AbstractTuplizer.java:103)
at org.hibernate.persister.entity.BasicEntityPersister.getIdentifier(BasicEntityPersister.java:2925)
at org.hibernate.persister.entity.BasicEntityPersister.isTransient(BasicEntityPersister.java:2691)
at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181)
at org.hibernate.event.def.AbstractSaveEventListener.getEntityState(AbstractSaveEventListener.java:408)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:82)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:69)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:432)
at org.hibernate.engine.Cascades$5.cascade(Cascades.java:153)
at org.hibernate.engine.Cascades.cascade(Cascades.java:721)
at org.hibernate.engine.Cascades.cascadeCollection(Cascades.java:860)
at org.hibernate.engine.Cascades.cascade(Cascades.java:739)
at org.hibernate.engine.Cascades.cascade(Cascades.java:817)
at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:121)
at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:112)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:59)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:678)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:309)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:86)
at com.mintnovate.core.or.TransactionManager.commit(TransactionManager.java:44)
at com.mintnovate.core.security.service.UserService.updateUserGroups(UserService.java:105)
at com.mintnovate.core.security.web.action.ManageUserAction.doUpdateUserGroup(ManageUserAction.java:254)
at com.mintnovate.core.security.web.action.ManageUserAction.execute(ManageUserAction.java:105)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1192)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:430)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:76)
at com.mintnovate.core.web.SessionTrackingFilter.doFilter(SessionTrackingFilter.java:63)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:132)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:71)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:974)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:564)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:200)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:119)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:276)
at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:618)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:439)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:672)
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java(Compiled Code))
at java.lang.reflect.Method.invoke(Method.java(Compiled Code))
at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:105)
... 53 more

Name and version of the database you are using:MySQL 5

The generated SQL (show_sql=true): Failing before that if i am not wrong

Debug level Hibernate log excerpt:
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sigirisetti
 Post subject:
PostPosted: Sat Jun 18, 2005 12:26 pm 
Newbie

Joined: Wed Jun 30, 2004 4:50 am
Posts: 12
I am blur. I found it. Sorry to waste your time.
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 Profile  
 
masif
 Post subject:
PostPosted: Tue Jun 21, 2005 2:40 am 
Newbie

Joined: Fri Jun 17, 2005 2:59 am
Posts: 3
can you please let me know how did u solved the problem. I'm getting exactly the same error. thanks in adv.
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 Profile  
 
gaetmail
 Post subject:
PostPosted: Wed Jan 18, 2006 1:53 pm 
Regular
Regular

Joined: Fri Sep 30, 2005 6:15 am
Posts: 50
can you please give your anser here??
I'm running into the same problem
Thanks
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