net.sf.hibernate.MappingException: No persister for:

Ram · **Joined:** Tue Mar 09, 2004 8:58 am **Posts:** 15

Hi,
I'm new to Hibernate, I'm trying to use Hibernate to save some data into a database table using SunOne app server.
Have done the necessary mappings and (as can be seen from the logs below) Hibernate even picks up the correct mappings. Thereafter on invoking the session.save(applicationPool), it throws up the following exception

net.sf.hibernate.MappingException: No persister for: eg.ApplicationPool
at net.sf.hibernate.impl.SessionFactoryImpl.getPersister(SessionFactoryImpl.java:344)

Some place before this trace the mapping is correctly found

cfg.Configuration - Configuration resource: /hibernate.cfg.xml
cfg.Configuration - Mapping resource: eg/ApplicationPool.hbm.xml
cfg.Binder - Mapping class: eg.ApplicationPool -> application_pool

Code:

session = HibernateSession.currentSession();
ApplicationPool applicationPool = new ApplicationPool();
BeanUtils.copyProperties(applicationPool, userPool);
session.save(applicationPool);
session.flush();

Have been trying to figure this out for some time now.
Has anyone had a problem like this before? Could someone please help.
Thanks in advance.
-Ram.

hibernateuser · **Joined:** Tue Feb 10, 2004 12:03 am **Posts:** 16

please post the source code ( your mapping file and beans) and error log

chenxihll · **Joined:** Thu Mar 11, 2004 5:13 am **Posts:** 5

In my opinion, you haven't call facade.store() to persitent the object you manuplate to.

Ram · **Joined:** Tue Mar 09, 2004 8:58 am **Posts:** 15

Sorry about missing the mapping files

The hibernate.cfg.xml-

Code:

<hibernate-configuration>

    <session-factory>
        <property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
        <property name="hibernate.connection.url">jdbc:oracle:thin:@102.209.183.13:1530:tibdb</property>
        <property name="hibernate.connection.username">chmg</property>
        <property name="hibernate.connection.password">abc</property>
        <property name="dialect">net.sf.hibernate.dialect.OracleDialect</property>
        <property name="show_sql">true</property>
        <property name="transaction.factory_class">
             net.sf.hibernate.transaction.JDBCTransactionFactory
        </property>
        <property name="hibernate.cache.provider_class">
             net.sf.hibernate.cache.HashtableCacheProvider
        </property>
        <property name="hibernate.hbm2ddl.auto">update</property>

        <mapping resource="eg/ApplicationPool.hbm.xml"/>

    </session-factory>

</hibernate-configuration>

The ApplicationPool.hbm.xml-

Code:

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping SYSTEM "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>

  <class name="eg.ApplicationPool" table="application_pool">
    <id name="poolTypeId" column="pool_type_uid" type="string">
         <generator class="uuid.string"/>
    </id>
   <property name="poolName" column="pool_name" type="string"/>
   <property name="poolDesc" column="pool_desc" type="string"/>
   <property name="assignToEmployeePoleInd" column="assign_to_employee_pole_ind" type="string"/>
   <property name="assignToEmployeePNLInd" column="assign_to_employee_pnl_ind" type="string"/>
   <property name="assignToEmployeeSubPNLInd" column="assign_to_employee_subpnl_ind" type="string"/>
   <property name="assignToEmpLocationInd" column="assign_to_emp_location_ind" type="string"/>
   <property name="createdByUid" column="created_By_Uid" type="string"/>
   <property name="creationTS" column="creation_TS" type="timestamp"/>
   <property name="lastUpdatedByUid" column="last_Updated_By_Uid" type="string"/>
   <property name="lastUpdatedByTS" column="last_Updated_By_TS" />
  </class>
  
</hibernate-mapping>

The bean file-

Code:

package eg;
public class ApplicationPool {
   private String poolTypeId;
   private String poolName;
   private Long poolDesc; 
   private String assignToEmployeePoleInd; 
   private String assignToEmployeePNLInd; 
   private String assignToEmployeeSubPNLInd; 
   private String assignToEmpLocationInd; 
   private String createdByUid;
   private String creationTS;
   private String lastUpdatedByUid;
   private String lastUpdatedByTS;
//getters and setters not listed here
}

Ram · **Joined:** Tue Mar 09, 2004 8:58 am **Posts:** 15

chenxihll wrote:

In my opinion, you haven't call facade.store() to persitent the object you manuplate to.

Facade.store()?
I'm invoking session.save

Code:

session.save(applicationPool);

Ram · **Joined:** Tue Mar 09, 2004 8:58 am **Posts:** 15

Hi,
I just figured that this fails only when the code is invoked from the application container. As with the code that is invoked from the web container, it works fine.

The layers of the application are thus jsp->Action class->EJB->Java Service class.

When the save is invoked from Action it works fine, but fails when it is invoked from Service.

Does that mean anything?? Please let me know.

Thanks in advance.
-Ram.

emmanuel · **Posted:** Mon Mar 15, 2004 12:27 pm

Check the logs at a debug level. It will probably help/

RobJellinghaus · **Joined:** Thu Jan 08, 2004 6:17 pm **Posts:** 278

It is probably an error in the way you are initializing your Hibernate session factory inside the EJB container. Carefully study the initialization sequence inside the container.