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Author Message
tjholmes
 Post subject: Newbie ID Generator problem
PostPosted: Thu Jul 21, 2005 10:46 am 
Beginner
Beginner

Joined: Thu Jul 21, 2005 10:28 am
Posts: 21
Need help with Hibernate? Read this first:
http://www.hibernate.org/ForumMailingli ... AskForHelp

Hibernate version: 2.0.x

Mapping documents:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping
PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>

<class
name="com.starwood.saratoga.dataaccess.dvo.AgentMessageDVO"
table="CCC.AGNT_MSG">

<id name="messageId" type="java.lang.Long" unsaved-value="0" column="MSG_ID">
<generator class="sequence">
<param name="sequence">CCC.SEQ.AGNT_MSG</param>
</generator>
</id>

<!--
<set name="recipients" cascade="all">
<key column="MSG_ID" />
<one-to-many class="com.starwood.saratoga.dataaccess.dvo.MessageRecipientDVO" />
</set>
-->

<!--
<property name="messageId" type="long" insert="false" update="false" >
<column name="MSG_ID" sql-type="NUMBER" not-null="true"/>
</property>
-->

<property name="fromDate" type="date">
<column name="MSG_START_DATE" sql-type="DATE" not-null="false" />
</property>

<property name="toDate" type="date">
<column name="END_START_DATE" sql-type="DATE" not-null="false" />
</property>

<property name="messageText" type="string">
<column name="MSG_TEXT" sql-type="VARCHAR2(500)" not-null="false" />
</property>

<property name="categoryCode" type="string">
<column name="MSG_CATG_CD" sql-type="VARCHAR2(20)" not-null="false" />
</property>

<property name="behaviorCode" type="string">
<column name="MSG_BHVR_CD" sql-type="VARCHAR2(20)" not-null="false" />
</property>

<property name="createUser" type="string">
<column name="CREATE_USER" sql-type="VARCHAR2(20)"
not-null="false" />
</property>

<property name="createDate" type="date">
<column name="CREATE_DATE" sql-type="DATE" not-null="false" />
</property>

<property name="modUser" type="string">
<column name="MOD_USER" sql-type="VARCHAR2(20)"
not-null="false" />
</property>

<property name="modDate" type="date">
<column name="MOD_DATE" sql-type="DATE" not-null="false" />
</property>

<!--
<many-to-one name="messageCategoryDVO" column="MSG_CATG_CD" class="com.starwood.saratoga.dataaccess.dvo.MessageCategoryDVO" not-null="true" insert="false" update="false"/>
<many-to-one name="messageBehaviorDVO" column="MSG_BHVR_CD" class="com.starwood.saratoga.dataaccess.dvo.MessageBehaviorDVO" not-null="true" insert="false" update="false"/>
-->

</class>

<!--
<class
name="com.starwood.saratoga.dataaccess.dvo.MessageRecipientDVO"
table="CCC.MSG_RECIPIENT">

<composite-id name="compositeKey" class="com.starwood.saratoga.dataaccess.dao.MessageRecipientCompositeKey">
<key-property name="messageId" type="long" column="MSG_ID"/>
<key-property name="recipientId" type="string" column="RECIPIENT_ID"/>
<key-property name="receiverCategoryCode" type="string" column="RCVR_CATG_CD"/>
</composite-id>

<property name="messageId" type="long" insert="false" update="false" >
<column name="MSG_ID" sql-type="NUMBER" not-null="true"/>
</property>

<property name="recipientId" type="string" insert="false" update="false" >
<column name="RECIPIENT_ID" sql-type="VARCHAR2(50)" not-null="true"/>
</property>

<property name="receiverCategoryCode" type="string" insert="false" update="false" >
<column name="RCVR_CATG_CD" sql-type="VARCHAR2(20)" not-null="true"/>
</property>

<many-to-one name="receiverCategoryCodes" column="RCVR_CATG_CD" class="com.starwood.saratoga.dataaccess.dvo.ReceiverCategory" not-null="true" insert="false" update="false"/>

</class>
-->

</hibernate-mapping>


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

Session session = null;
try {
System.out.println("AgentMessageDAO: create Transaction");
Transaction tx = session.beginTransaction();
System.out.println("AgentMessageDAO: create session");
session = HibernateUtil.currentSession();
session.saveOrUpdate(agentMessageDVO);
tx.commit();
} catch (HibernateException e) {
log("AgentMessageDVO: saveOrUpdate: Hibernate Error Occured");
e.printStackTrace();
} finally {
try {
HibernateUtil.closeSession(session);
} catch (Exception ignore) {
log("AgentMessageDVO: saveOrUpdate: Session Close Error Occured");
ignore.printStackTrace();
}

Full stack trace of any exception that occurs:
[7/21/05 10:26:27:925 EDT] 29a716b5 SystemOut O HibernateUtil: creating Session factory: start
[7/21/05 10:26:27:925 EDT] 29a716b5 Configuration I net.sf.hibernate.cfg.Configuration configuring from url: file:/C:/workspace/saratoga/Common/classes/com/starwood/saratoga/dataaccess/Security.cfg.xml
[7/21/05 10:26:27:935 EDT] 29a716b5 Configuration I net.sf.hibernate.cfg.Configuration Mapping resource: com/starwood/saratoga/dataaccess/AgentMessage.hbm.xml
[7/21/05 10:26:27:945 EDT] 29a716b5 Binder I net.sf.hibernate.cfg.Binder Mapping class: com.starwood.saratoga.dataaccess.dvo.AgentMessageDVO -> CCC.AGNT_MSG
[7/21/05 10:26:27:945 EDT] 29a716b5 Configuration I net.sf.hibernate.cfg.Configuration Mapping resource: com/starwood/saratoga/dataaccess/MessageCategory.hbm.xml
[7/21/05 10:26:27:955 EDT] 29a716b5 Binder I net.sf.hibernate.cfg.Binder Mapping class: com.starwood.saratoga.dataaccess.dvo.MessageCategoryDVO -> CCC.MSG_CATG_LKUP
[7/21/05 10:26:27:955 EDT] 29a716b5 Configuration I net.sf.hibernate.cfg.Configuration Mapping resource: com/starwood/saratoga/dataaccess/MessageBehavior.hbm.xml
[7/21/05 10:26:27:965 EDT] 29a716b5 Binder I net.sf.hibernate.cfg.Binder Mapping class: com.starwood.saratoga.dataaccess.dvo.MessageBehaviorDVO -> CCC.MSG_BHVR_CD_LKUP
[7/21/05 10:26:27:965 EDT] 29a716b5 Configuration I net.sf.hibernate.cfg.Configuration Mapping resource: com/starwood/saratoga/dataaccess/ReceiverCategory.hbm.xml
[7/21/05 10:26:27:975 EDT] 29a716b5 Binder I net.sf.hibernate.cfg.Binder Mapping class: com.starwood.saratoga.dataaccess.dvo.ReceiverCategoryDVO -> CCC.RCVR_CATG_LKUP
[7/21/05 10:26:27:975 EDT] 29a716b5 Configuration I net.sf.hibernate.cfg.Configuration Configured SessionFactory: null
[7/21/05 10:26:27:985 EDT] 29a716b5 Configuration I net.sf.hibernate.cfg.Configuration processing one-to-many association mappings
[7/21/05 10:26:27:985 EDT] 29a716b5 Configuration I net.sf.hibernate.cfg.Configuration processing one-to-one association property references
[7/21/05 10:26:27:985 EDT] 29a716b5 Configuration I net.sf.hibernate.cfg.Configuration processing foreign key constraints
[7/21/05 10:26:27:985 EDT] 29a716b5 Dialect I net.sf.hibernate.dialect.Dialect Using dialect: net.sf.hibernate.dialect.OracleDialect
[7/21/05 10:26:27:985 EDT] 29a716b5 SettingsFacto I net.sf.hibernate.cfg.SettingsFactory Maximim outer join fetch depth: 0
[7/21/05 10:26:27:985 EDT] 29a716b5 SettingsFacto I net.sf.hibernate.cfg.SettingsFactory Use outer join fetching: true
[7/21/05 10:26:27:985 EDT] 29a716b5 NamingHelper I net.sf.hibernate.util.NamingHelper JNDI InitialContext properties:{}
[7/21/05 10:26:27:995 EDT] 29a716b5 DatasourceCon I net.sf.hibernate.connection.DatasourceConnectionProvider Using datasource: jdbc/OraDb
[7/21/05 10:26:27:995 EDT] 29a716b5 TransactionFa I net.sf.hibernate.transaction.TransactionFactoryFactory Transaction strategy: net.sf.hibernate.transaction.JDBCTransactionFactory
[7/21/05 10:26:27:995 EDT] 29a716b5 TransactionMa I net.sf.hibernate.transaction.TransactionManagerLookupFactory No TransactionManagerLookup configured (in JTA environment, use of process level read-write cache is not recommended)
[7/21/05 10:26:27:995 EDT] 29a716b5 SettingsFacto I net.sf.hibernate.cfg.SettingsFactory Use scrollable result sets: true
[7/21/05 10:26:27:995 EDT] 29a716b5 SettingsFacto I net.sf.hibernate.cfg.SettingsFactory Use JDBC3 getGeneratedKeys(): false
[7/21/05 10:26:27:995 EDT] 29a716b5 SettingsFacto I net.sf.hibernate.cfg.SettingsFactory Optimize cache for minimal puts: false
[7/21/05 10:26:27:995 EDT] 29a716b5 SettingsFacto I net.sf.hibernate.cfg.SettingsFactory Query language substitutions: {}
[7/21/05 10:26:27:995 EDT] 29a716b5 SettingsFacto I net.sf.hibernate.cfg.SettingsFactory cache provider: net.sf.ehcache.hibernate.Provider
[7/21/05 10:26:27:995 EDT] 29a716b5 Configuration I net.sf.hibernate.cfg.Configuration instantiating and configuring caches
[7/21/05 10:26:27:995 EDT] 29a716b5 SessionFactor I net.sf.hibernate.impl.SessionFactoryImpl building session factory
[7/21/05 10:26:28:005 EDT] 29a716b5 SystemErr R net.sf.hibernate.MappingException: could not instantiate id generator
at net.sf.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:82)
at net.sf.hibernate.mapping.SimpleValue.createIdentifierGenerator(SimpleValue.java:82)
at net.sf.hibernate.persister.AbstractEntityPersister.<init>(AbstractEntityPersister.java:630)
at net.sf.hibernate.persister.EntityPersister.<init>(EntityPersister.java:714)
at net.sf.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:42)
at net.sf.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:137)
at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:768)
at com.starwood.saratoga.dataaccess.HibernateUtil.<clinit>(HibernateUtil.java:15)
at com.starwood.saratoga.dataaccess.dao.AgentMessageDAO.saveOrUpdate(AgentMessageDAO.java:71)
at com.starwood.saratoga.struts.messages.edit.MessagesAddAction.execute(MessagesAddAction.java:162)
at com.ibm.wps.portlets.struts.WpsRequestProcessor.processActionPerform(WpsRequestProcessor.java:335)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at com.ibm.wps.portlets.struts.WpsStrutsPortlet.processActionPerformed(WpsStrutsPortlet.java:1753)
at com.ibm.wps.portlets.struts.WpsStrutsPortlet.actionPerformed(WpsStrutsPortlet.java:1460)
at com.ibm.wps.pe.pc.legacy.SPIPortletInterceptorImpl.handleEvents(SPIPortletInterceptorImpl.java:360)
at com.ibm.wps.pe.pc.legacy.invoker.impl.PortletDelegateImpl._dispatch(PortletDelegateImpl.java(Compiled Code))
at com.ibm.wps.pe.pc.legacy.invoker.impl.PortletDelegateImpl.access$200(PortletDelegateImpl.java(Inlined Compiled Code))
at com.ibm.wps.pe.pc.legacy.invoker.impl.PortletDelegateImpl$Context.callPortlet(PortletDelegateImpl.java(Inlined Compiled Code))
at com.ibm.wps.pe.pc.legacy.services.PortletFilterServiceImpl.doFilter(PortletFilterServiceImpl.java(Compiled Code))
at com.ibm.wps.pe.pc.legacy.services.PortletFilter.doFilter(PortletFilter.java(Inlined Compiled Code))
at com.ibm.wps.pe.pc.legacy.invoker.impl.PortletDelegateImpl.dispatch(PortletDelegateImpl.java(Compiled Code))
at org.apache.jetspeed.portlet.Portlet.doPost(Portlet.java:512)
at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))
at com.ibm.wps.pe.pc.legacy.cache.CacheablePortlet.service(CacheablePortlet.java(Compiled Code))
at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))
at org.apache.jetspeed.portlet.Portlet.service(Portlet.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java(Inlined Compiled Code))
at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java(Inlined Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.include(WebAppRequestDispatcher.java(Inlined Compiled Code))
at com.ibm.wps.pe.pc.legacy.invoker.impl.PortletInvokerImpl.callMethod(PortletInvokerImpl.java(Compiled Code))
at com.ibm.wps.pe.pc.legacy.invoker.impl.PortletInvokerImpl.action(PortletInvokerImpl.java:82)
at com.ibm.wps.pe.pc.legacy.PortletContainerImpl.callPortletMethod(PortletContainerImpl.java(Compiled Code))
at com.ibm.wps.pe.pc.legacy.EventEnvironmentImpl.includePortlet(EventEnvironmentImpl.java:177)
at com.ibm.wps.pe.pc.legacy.event.ActionEventImpl.prepare(ActionEventImpl.java:121)
at com.ibm.wps.pe.pc.legacy.event.EventQueueManager.processEventLoop(EventQueueManager.java:83)
at com.ibm.wps.pe.pc.legacy.PortletContainerImpl.performEventPhase(PortletContainerImpl.java(Compiled Code))
at com.ibm.wps.pe.pc.legacy.PortletContainerImpl.performEvents(PortletContainerImpl.java:210)
at com.ibm.wps.pe.pc.PortletContainerImpl.performEvents(PortletContainerImpl.java:212)
at com.ibm.wps.engine.phases.WPActionPhase.processPortlets(WPActionPhase.java:1170)
at com.ibm.wps.engine.phases.WPActionPhase.execute(WPActionPhase.java:561)
at com.ibm.wps.state.phases.AbstractActionPhase.next(AbstractActionPhase.java:130)
at com.ibm.wps.engine.Servlet.callPortal(Servlet.java:638)
at com.ibm.wps.engine.Servlet.doGet(Servlet.java:496)
at com.ibm.wps.engine.Servlet.doPost(Servlet.java:664)
at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))
at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java(Inlined Compiled Code))
at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java(Compiled Code))
at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java(Compiled Code))
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:76)
at com.ibm.wps.state.filter.StateCleanup.doFilter(StateCleanup.java:71)
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.wps.mappingurl.impl.URLAnalyzer.doFilter(URLAnalyzer.java:174)
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(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:204)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:125)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:286)
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:615)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:439)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:912)
Caused by: java.lang.ClassNotFoundException:
at com.ibm.ws.classloader.CompoundClassLoader.findClass(CompoundClassLoader.java(Compiled Code))
at com.ibm.ws.classloader.CompoundClassLoader.loadClass(CompoundClassLoader.java(Compiled Code))
at java.lang.ClassLoader.loadClass(ClassLoader.java(Compiled Code))
at java.lang.Class.forName1(Native Method)
at java.lang.Class.forName(Class.java(Compiled Code))
at net.sf.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:102)
at net.sf.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:76)
... 78 more

Name and version of the database you are using:
Oracle 9i

The generated SQL (show_sql=true): N/A at this time

Debug level Hibernate log excerpt:
Don't even know where to find this.

Ok, I am a newbie and I am just learning Hibernate. I've got the Wrox book on Hibernate and I plan on getting the Hibernate in Action book.

The problem is obvious. I am trying to write a single record to my single Oracle database table. There is a sequence, and I tested to make sure it works. I can manually enter information into this table.

The error is "could not instantiate id generator" and way down at the bottom is a ClassNotFoundException.

So .... I've added a ton of classes to my classpath that I thought were needed. No effect. Is this classpath exception because one of my VO files is wrong? I created them by hand the way the examples showed.

I've spent the last 3 days working on this problem, and spent 3 days surfing this site and the internet trying to find out how to solve this problem. I have tried changing the generator from sequence to native to assigned, and nothing works.

If you need more information, please let me know, but this is what I have and I hope someone here can help me. Thanks.

Tom
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paladin
 Post subject:
PostPosted: Thu Jul 21, 2005 11:14 am 
Newbie

Joined: Sun Jul 17, 2005 1:48 am
Posts: 4
Tom,

I am also new at hibernate so I don't know if this is really your problem but I've noticed different behaviour among generators. try identity instead of sequence

Code:
<generator class="identity">
[/code]
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tjholmes
 Post subject: id code generation - solved for now
PostPosted: Thu Jul 21, 2005 2:26 pm 
Beginner
Beginner

Joined: Thu Jul 21, 2005 10:28 am
Posts: 21
I SOLVED THIS PROBLEM ... YEAH!

In the hibernate.cfg.cml file I had a few other resources that were linked to 3 other hbm.xml files. These three hbm.xml tables were just supposed to be lookups to other tables. They had and empty string defined as a generator <generator name="" /> and that was valid XML. However, it should have been at least <generator name="assigned" />

So ... it wasn't the problem with my original first hbm.xml, it was the other ones ....

Oh well ... I hope this solves problems for other people.
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