Unable to instantiate specified TransactionFactory class [org.transaction.JDBCTransactionFactory]

Question

I have a problem. I am new in hibernate and I want to write a very simple example with HibernateOGM. I get an Exception that says:

Caused by: org.hibernate.HibernateException: Unable to instantiate specified TransactionFactory class [org.transaction.JDBCTransactionFactory]

I have searched really alot, but I couldn't find any solution for my problem. As I understand, the problem occures in this line:

sessionfactory=cfgogm.buildSessionFactory(serviceregistry);

If I comment the other lines I have no exception, only INFOS.

this is my Stacktrace:

at org.hibernate.engine.transaction.internal.TransactionFactoryInitiator.initiateService(TransactionFactoryInitiator.java:80)
    at org.hibernate.ogm.transaction.impl.OgmTransactionFactoryInitiator.buildServiceInstance(OgmTransactionFactoryInitiator.java:61)
    at org.hibernate.ogm.transaction.impl.OgmTransactionFactoryInitiator.buildServiceInstance(OgmTransactionFactoryInitiator.java:41)
    at org.hibernate.ogm.service.impl.OptionalServiceInitiator.initiateService(OptionalServiceInitiator.java:37)
    at org.hibernate.service.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:69)
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:176)

here you can find my code and hibernate.cfg.xml and pom.xml:

 OgmConfiguration cfgogm=new OgmConfiguration();
            cfgogm.configure("hibernate.cfg.xml");
            serviceregistry=new ServiceRegistryBuilder().applySettings(cfgogm.getProperties()).buildServiceRegistry();
            sessionfactory=cfgogm.buildSessionFactory(serviceregistry)

hibernate.cfg.xml is:

 <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>  
  <session-factory>


    <property name="hibernate.current_session_context_class">thread</property>
    <property name="hibernate.ogm.datastore.grid_dialect">org.hibernate.ogm.dialect.mongodb.MongoDBDialect</property>
    <property name="hibernate.ogm.datastore.provider">mongodb</property>
    <property name="hibernate.ogm.mongodb.database">rcfdb</property>
    <property name="hibernate.ogm.mongodb.host">127.0.0.1</property>
    <property name="hibernate.ogm.mongodb.port">27017</property>
    <mapping resource="hibernate-contact.hbm.xml"/>
  </session-factory>
</hibernate-configuration>

pom.xml:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>hogm</groupId>
  <artifactId>HibernateOGM_MongoDB</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>
  <name>HibernateOGM_MongoDB</name>
  <url>http://maven.apache.org</url>
  <build>
          <plugins>
              <plugin>
                  <groupId>org.codehaus.mojo</groupId>
                  <artifactId>exec-maven-plugin</artifactId>
                  <version>1.2.1</version>
                  <executions>
                      <execution>
                          <goals>
                                  <goal>exec</goal>
                          </goals>
                      </execution>
                  </executions>
              </plugin>
          </plugins>
  </build>

 <dependencies>
     <dependency>
         <groupId>org.hibernate.ogm</groupId>
         <artifactId>hibernate-ogm-mongodb</artifactId>
         <version>4.0.0.Beta1</version>
     </dependency>
     <dependency>
         <groupId>org.hibernate.ogm</groupId>
         <artifactId>hibernate-ogm-core</artifactId>
         <version>4.0.0.Beta2</version>
     </dependency>   

  <dependency>
   <groupId>junit</groupId>
   <artifactId>junit</artifactId>
   <version>4.11</version>
   <scope>test</scope>
   <type>jar</type>
  </dependency>
 </dependencies>
</project>

could you please help me to solve this problem?

Answer 1

Hibernate Object/Grid Mapper (OGM) is a persistence engine providing Java Persistence (JPA) support for NoSQL datastores. so why do you use hibernate-ogm with derby?

check out the official guide for hibernate-ogm with mangoDB

--edit--

is there something like JDBCTransactionFactory in any of your configuration file? try remove it.

Answer 2

The correct class name is org.hibernate.transaction.JDBCTransactionFactory.

Probably hibernate picks up some property or properties file with the incorrect classname.

If you can't find it, override it in your own hibernate.cfg.xml:

<property  name="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property>