problem Spring+hibernate : can't generate bean name

[anna177]

Hi,
I'm trying to use Spring with hibernate to access a database,
I'm getting this:

org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unnamed bean definition specifies neither 'class' nor 'parent' nor 'factory-bean' - can't generate bean name
Offending resource: ServletContext resource [/WEB-INF/applicationContext.xml]

	at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:68)
	at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:85)
	at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:80)
	at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.error(BeanDefinitionParserDelegate.java:314)
	at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseBeanDefinitionElement(BeanDefinitionParserDelegate.java:497)
	at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseBeanDefinitionElement(BeanDefinitionParserDelegate.java:440)
	at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.processBeanDefinition(DefaultBeanDefinitionDocumentReader.java:315)
	at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseDefaultElement(DefaultBeanDefinitionDocumentReader.java:206)
	at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:185)
	at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:144)
	at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:114)
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:493)
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390)
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:334)
	at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:302)
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:174)
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:209)
	at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:180)
	at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:125)
	at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:94)
	at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:131)
	at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:509)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:427)
	at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:294)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:215)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4723)
	at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226)
	at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
	at java.lang.Thread.run(Thread.java:619)

here is the applicationContext.xml file

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">

	<!-- the data source class is recommend to use com.mchange.v2.c3p0.ComboPooledDataSource 
		in production phase -->
		
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
		destroy-method="close">
		
		<property name="driverClass" value="com.mysql.jdbc.Driver" />
		<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/bdtest" />
		<property name="user" value="root" />
		<property name="password" value="" />
	</bean>
	
	<!-- define Hibernate sessionFactory provided by Spring ORM -->
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<!-- set other Hibernate properties in hibernate.cfg.xml file -->
		<property name="configLocation" value="/WEB-INF/hibernate.cfg.xml" />
	</bean>
	
	<!-- define Hibernate sessionFactory provided by Spring -->
	<bean id="transactionManager"
		class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>
	
	<!-- for using annotation @Transaction in DAOs -->
	<tx:annotation-driven />
	
	<!-- inject relative DAO and Service beans -->
	<bean id="companyDAO" class="org.zkoss.model.dao.CompanyDAO">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>
	<bean id="companyManager" class="org.zkoss.service.CompanyManagerImpl">
		<property name="companyDAO" ref="companyDAO" />
	</bean>
	
	<bean id="userDAO" class="org.zkoss.model.dao.UserDAO">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>
	<bean>
		<property name="userDAO" ref="userDAO"></property>
	</bean>
	
</beans>

and hibernate.cfg.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
                                         "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
	<session-factory>
		<!-- Database dialect -->
		<property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
		
		<!-- Echo all executed SQL to stdout -->
		<property name="hibernate.show_sql">true</property>
		<property name="hibernate.format_sql">true</property>
		<property name="hibernate.current_session_context_class">thread</property>  
		<property name="connection.pool_size">1</property>
		<!-- mapping resources -->
		<mapping package="org.zkoss.model.bean" />
		<mapping class="org.zkoss.model.bean.Company" />
		<mapping class="org.zkoss.model.bean.User" />
		
		<mapping resource="org\zkoss\model\bean\Company.hbm.xml" />
		<mapping resource="org\zkoss\model\bean\User.hbm.xml"/>
		
	</session-factory>
</hibernate-configuration>

any suggestions please ..??

[anna177]

Am I missing sth in my configuration..
I'm kind of lost and really nead your help ... please any sugestion could be helpful

[dr_pompeii]

Hello Anna

About this

<!-- inject relative DAO and Service beans -->
	<bean id="companyDAO" class="org.zkoss.model.dao.CompanyDAO">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>
	<bean id="companyManager" class="org.zkoss.service.CompanyManagerImpl">
		<property name="companyDAO" ref="companyDAO" />
	</bean>
	
	<bean id="userDAO" class="org.zkoss.model.dao.UserDAO">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>

Be sure that each one be a concrete class not an implementation

well the error is the follow

<bean>
	<property name="userDAO" ref="userDAO"></property>
</bean>

Red part has no class attribute (id is optional if you want and anonymous class)

[anna177]

thank you dr_pompeii
I realized that the two classes were implementing the class "serializable", so I removed the implementation
i also added

<bean id="userManager" class="org.zkoss.service.UserManagerImpl">
<property name="userDAO" ref="userDAO"></property>
</bean>

but it didn't work.

so I just created a new project and moved all the packages and the configuration files into it .. then it works !!
I still don't understand why my class (user) couldn't be found .. but i'm glad it's working now

thanks again

Regards