$Proxy13 cannot be cast to

[LancerX]

When I use my BO (buissness object) there is an exception:

$Proxy13 cannot be cast to pl.diagno.bo.impl.PersonBOImpl

This is quite strange because I use that configuration in the another project and it works fine.
My applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />

		<property name="annotatedClasses">
			<list>
				<value>pl.diagno.model.vo.City</value>
				<value>pl.diagno.model.vo.Users</value>
				<value>pl.diagno.model.vo.Person</value>
				<value>pl.diagno.model.vo.Permitions</value>
			</list>
		</property>

		<property name="hibernateProperties">
			<props>
				<prop key="show_sql">true</prop>
				<prop key="dialect">org.hibernate.dialect.Oracle10gDialect</prop>
			</props>
		</property>
	</bean>

	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
		<property name="url" value="jdbc:oracle:thin:@xxx-90ac33161e0:1521:XE" />
		<property name="username" value="diagno" />
		<property name="password" value="1234" />
	</bean>

	<bean id="txManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>


	<bean id="transactionProxyBean" abstract="true"
		class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
		<property name="transactionManager" ref="txManager" />
		<property name="transactionAttributeSource">
			<bean
				class="org.springframework.transaction.annotation.AnnotationTransactionAttributeSource" />
		</property>
	</bean>

	<!-- DAO BEANS  -->

	<bean id="cityDao" class="pl.diagno.dao.impl.CityDAOImpl">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<bean id="personDao" class="pl.diagno.dao.impl.PersonDAOImpl">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

	<!-- SERVICE BEANS -->

	<bean id="personBo" parent="transactionProxyBean">
		<property name="target">
			<bean class="pl.diagno.bo.impl.PersonBOImpl">
				<property name="personDAO" ref="personDao" />
				<property name="cityDAO" ref="cityDao" />
			</bean>
		</property>
	</bean>

	<bean id="cityBo" parent="transactionProxyBean">
		<property name="target">
			<bean class="pl.diagno.bo.impl.CityBOImpl">
				<property name="cityDAO" ref="cityDao" />
			</bean>
		</property>
	</bean>

</beans>

public class PersonBOImpl implements IPersonBO {
	IPersonDAO personDAO;
	ICityDAO cityDAO;
	
	public PersonBOImpl() {
	}
	
	@Transactional(propagation = Propagation.SUPPORTS)
	public void saveNewPerson(String name, String surname, String city,
			String street, String pesel, Date birthDate, String sex, boolean isClient, boolean isMember, Users users) {
		
		City cityToSave;
		
		List<City> cityList = cityDAO.find("from City c where name = ?", city);
			long id = ((City)cityList.get(0)).getId();
			cityToSave = cityDAO.load(id);
		
			personDAO.save(new Person(name, surname, cityToSave, street, pesel, birthDate, sex, isClient, isMember, users));
	}
	
	public IPersonDAO getPersonDAO() {
		return personDAO;
	}
	public void setPersonDAO(IPersonDAO personDAO) {
		this.personDAO = personDAO;
	}
	public ICityDAO getCityDAO() {
		return cityDAO;
	}
	public void setCityDAO(ICityDAO cityDAO) {
		this.cityDAO = cityDAO;
	}
}

Please for help.

I edit my personBo bean removing parent bean and add sessionFactory reference.

<bean id="personBo" class="pl.diagno.bo.impl.PersonBOImpl"> <!-- autowire="byName" -->
				<property name="sessionFactory" ref="sessionFactory" />
				<property name="personDAO" ref="personDao" />
				<property name="cityDAO" ref="cityDao" />
</bean>

I added sessionFactory setter to PersonBOImpl.java and it works!
So the problem is with transactions.

[dr_pompeii]

Why you are using both
@Transactional and TransactionProxyFactoryBean for pl.diagno.bo.impl.PersonBOImpl???

<property name="sessionFactory" ref="sessionFactory" /> must work only with DAO objects not BO objects!

See carefully this link about TransactionProxyFactoryBean, where is defined your transactionAttributes??

Consider too this method setProxyTargetClass

HTH

[LancerX]

Why you are using both
@Transactional and TransactionProxyFactoryBean for pl.diagno.bo.impl.PersonBOImpl???

I added @Transactional to BOImp by mistake.

...where is defined your transactionAttributes??

I use annotations to configure entities, so I thought that
<property name="transactionAttributeSource">
<bean class="org.springframework.transaction.annotation. AnnotationTransactionAttributeSource" />
</property>
in annotations, is equivalent of transactionAttributes in ordinary xml way of definition.
None the less, I added

   <property name="transactionAttributes">
     <props>
       <prop key="insert*">PROPAGATION_REQUIRED</prop>
       <prop key="update*">PROPAGATION_REQUIRED</prop>
       <prop key="*">PROPAGATION_REQUIRED,readOnly</prop>
     </props>
   </property>

but it nothing changed.

Consider too this method setProxyTargetClass

I have no idea how to use it, I have never used aop

Maybe it is important that the application is not sterted in any container (ex. Tomcat) but is standalone?

[dr_pompeii]

I found this from my old projects, apply to yours
Not critical differences and see the orange part

    <bean id="idConcreteManagerObjectTransactional" abstract="true" 
   	      class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" >

          <property name="transactionManager" >
   	      <ref bean="transactionManager" />
          </property>
          <property name="proxyTargetClass" >
          	<value>true</value>
          </property>
      
          <!-- overwriting by my child -->
          <!--
          <property name="target" >
          		<ref bean="idConcrete???ImplTarget" />
          </property>
           -->
          <property name="transactionAttributes" >			     
              <props>
                <prop key="*">PROPAGATION_REQUIRED</prop>          			
              </props>
           </property>     	      
     </bean>

     <bean id="idConcreteProveedorImplManagerObjectTransactional"
 	  parent="idConcreteManagerObjectTransactional" >
          <property name="target" >
           	<ref bean="idConcreteProveedorImplTarget" />
          </property>
      </bean>

Let me know your advance

[LancerX]

With proxyTargetClass is works ok!
Thank you a lot dr_pompeii!!
My final applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotati on.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource" />

<property name="annotatedClasses">
<list>
<value>pl.diagno.model.vo.City</value>
<value>pl.diagno.model.vo.Users</value>
<value>pl.diagno.model.vo.Person</value>
<value>pl.diagno.model.vo.Permitions</value>
</list>
</property>

<property name="hibernateProperties">
<props>
<prop key="show_sql">true</prop>
<prop key="dialect">org.hibernate.dialect.OracleDialect</prop>
</props>
</property>
</bean>

<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverM anagerDataSource"> <!-- class="org.apache.commons.dbcp.BasicDataSource" -->
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@xxx-90ac33161e0:1521:XE" />
<property name="username" value="diagno" />
<property name="password" value="1234" />
</bean>

<bean id="txManager"
class="org.springframework.orm.hibernate3.Hibernat eTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>

<bean id="transactionProxyBean" abstract="true"
class="org.springframework.transaction.interceptor .TransactionProxyFactoryBean">
<property name="transactionManager" ref="txManager" />
<property name="proxyTargetClass">
<value>true</value>
</property>
<property name="transactionAttributeSource">
<bean
class="org.springframework.transaction.annotation. AnnotationTransactionAttributeSource" />
</property>
</bean>

<!-- DAO BEANS -->

<bean id="cityDao" class="pl.diagno.dao.impl.CityDAOImpl">
<property name="sessionFactory" ref="sessionFactory" />
</bean>

<bean id="personDao" class="pl.diagno.dao.impl.PersonDAOImpl">
<property name="sessionFactory" ref="sessionFactory" />
</bean>

<!-- BO BEANS -->

<bean id="personBo" parent="transactionProxyBean">
<property name="target">
<bean class="pl.diagno.bo.impl.PersonBOImpl">
<property name="personDAO" ref="personDao" />
<property name="cityDAO" ref="cityDao" />
</bean>
</property>
</bean>

<bean id="cityBo" parent="transactionProxyBean">
<property name="target">
<bean class="pl.diagno.bo.impl.CityBOImpl">
<property name="cityDAO" ref="cityDao" />
</bean>
</property>
</bean>
</beans>

[dr_pompeii]

With proxyTargetClass is works ok!
Thank you a lot dr_pompeii!!

You are welcome!, learn to read carefully the Spring's API, some times are very useful like complement from Spring documentation