Error creating bean with name 'mySessionFactory' defined in class path:Error setting property values

[ali honarmand]

Hi all,
I have got problems instantiating a bean. here is the stack trace:

Jul 14, 2011 4:52:05 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@17f1ba3: display name [org.springframework.context.support.ClassPathXmlApplicationContext@17f1ba3]; startup date [Thu Jul 14 16:52:05 IRDT 2011]; root of context hierarchy
Jul 14, 2011 4:52:05 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [beans.xml]
Jul 14, 2011 4:52:05 PM org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory
INFO: Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext@17f1ba3]: org.springframework.beans.factory.support.DefaultListableBeanFactory@e5bbd6
Jul 14, 2011 4:52:05 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@e5bbd6: defining beans [helloWorld,springQuizMaster,strutsQuizMaster,quizMasterService,user,myDataSource,mySessionFactory,courseDAO]; root of factory hierarchy
Jul 14, 2011 4:52:05 PM org.springframework.jdbc.datasource.DriverManagerDataSource setDriverClassName
INFO: Loaded JDBC driver: com.mysql.jdbc.Driver
Jul 14, 2011 4:52:05 PM org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons
INFO: Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@e5bbd6:
defining beans [helloWorld,springQuizMaster,strutsQuizMaster,quizMasterService,user,myDataSource,mySessionFactory,courseDAO]; root of factory hierarchy
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mySessionFactory' defined in class path resource [beans.xml]:
Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'mappingResources' of bean class [org.springframework.orm.hibernate3.LocalSessionFactoryBean]: Bean property 'mappingResources' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1278)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1011)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:475)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:412)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:383)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:276)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:273)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:175)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:479)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:716)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:377)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
	at com.vaannila.runner.Runner.main(Runner.java:32)
Caused by: org.springframework.beans.NotWritablePropertyException: 
Invalid property 'mappingResources' of bean class [org.springframework.orm.hibernate3.LocalSessionFactoryBean]:
Bean property 'mappingResources' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
	at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:787)
	at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:643)
	at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:76)
	at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:58)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1275)
	... 15 more

and the Course class:

@Entity
@Table(name = "course")
public class Course {
	private int courseId;
	private String courseName;

	/**
	 * @return the courseId
	 */
	@Id
	@GeneratedValue
	@Column(name = "courseId")
	public int getCourseId() {
		return courseId;
	}

	/**
	 * @param courseId
	 *            the courseId to set
	 */

	public void setCourseId(int courseId) {
		this.courseId = courseId;
	}

	/**
	 * @param courseName
	 *            the courseName to set
	 */

	public void setCourseName(String courseName) {
		this.courseName = courseName;
	}

	/**
	 * @return the courseName
	 */
	@Column(name = "courseName")
	public String getCourseName() {
		return courseName;
	}
}

and here is the beans.xml

	<bean id="myDataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver" />
		<property name="url" value="jdbc:mysql://localhost:3306/hibernatetest" />
		<property name="username" value="root" />
		<property name="password" value="" />
	</bean>
	<!-- org.springframework.orm.hibernate3.LocalSessionFactoryBean -->
	<!-- org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean -->
	<bean id="mySessionFactory"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="dataSource" ref="myDataSource" />
		<!---->
		<property name="mappingResources">
			<list>

				<value>com.vaannila.Course</value>
			</list>
		</property>
		<property name="hibernateProperties">
			<value>
				hibernate.dialect = org.hibernate.dialect.mySql
			</value>
		</property>
	</bean>
	<!-- com.vaannila.dao.CourseDaoImplHibernateDaoSupport -->
	<!-- com.vaannila.dao.CourseDAOImpl -->
	<bean id="courseDAO" class="com.vaannila.dao.CourseDAOImpl">
		<property name="sessionFactory" ref="mySessionFactory"></property>
	</bean>

Thanks priorly,

[Sagar Rohankar]

Property "mappingResources" is expecting an hibernate xml mapping file.
See# http://static.springsource.org/spring/docs/2.5.x/api/org/springframework/orm/hibernate3/LocalSessionFactoryBean.html#setMappingResources%28java.lang.String[]%29

[Mark Spritzler]

Yes, or since you are using Hibernate/JPA annotations, the factoryBean has a property for "packagesToScan" which scans those packages for Annotated classes, there is also another property to use to list out the classes I forget what it was called, probably "mappedClasses"

I prefer to use the packagesToScan since that list will be smaller than the list in mappedClasses.

Mark

[Tommy Delson]

The code you're trying to run is a Tutorial from com.vaannila so, I think it missing something or not fully configured.

Try the solution below...hope it help.


<property name="mappingResources"> <list> <!-- Wrong! You need to tell the location and file to map--> <!-- i.e com/yourPackageName/Course/MyHibName.hbm.xml--> <value>com.vaannila.Course</value> </list> </property>

Here is an example:
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="mappingResources"> <list> <value>com/zabada/springrecipes/base/Widget.hbm.xml</value> </list> </property> <property name="hibernateProperties"> <props> <prop key="hibernate.dialect"> org.hibernate.dialect.HSQLDialect </prop> </props> </property> <property name="dataSource"> <ref bean="dataSource"/> </property> </bean> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName"> <value>org.hsqldb.jdbcDriver</value> </property> <property name="url"> <value>jdbc:hsqldb:mem:widgets</value> </property> <property name="username"><value>sa</value></property> <property name="password"><value></value></property> </bean>


From the example above, you can make it works.

[Mark Spritzler]

Tommy, he is not using xml mapping, he is using Annotation mapping. So you example will not work for him. He is just setting the wrong property in the AnnotationSessionFactoryBean.

Mark

[Tommy Delson]

Mark Spritzler wrote:Tommy, he is not using xml mapping, he is using Annotation mapping. So you example will not work for him. He is just setting the wrong property in the AnnotationSessionFactoryBean.

Mark

Well, based on the exception "Caused by: org.springframework.beans.NotWritablePropertyException:
Invalid property 'mappingResources' of bean class [org.springframework.orm.hibernate3.LocalSessionFactoryBean]:
Bean property 'mappingResources' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?"

I can tell that "mappingResources" is not proper configured, the app looking for a resources, but it can not find due not configure correctly. Whether using Annotation mapping or not doesn't matter since, the error indicated at configuration level not application level error.

If you look carefully and check Spring document you'll find out the "mappingResources" is not configured correctly.

You can recreate the problem and confirm, I'll try and see if that's the problem or there are other problems.


@ali honarmand
Could you tell what's your status and did you get the problem solved?

[Mark Spritzler]

Tommy Delson wrote:

Mark Spritzler wrote:Tommy, he is not using xml mapping, he is using Annotation mapping. So you example will not work for him. He is just setting the wrong property in the AnnotationSessionFactoryBean.

Mark

Well, based on the exception "Caused by: org.springframework.beans.NotWritablePropertyException:
Invalid property 'mappingResources' of bean class [org.springframework.orm.hibernate3.LocalSessionFactoryBean]:
Bean property 'mappingResources' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?"

I can tell that "mappingResources" is not proper configured, the app looking for a resources, but it can not find due not configure correctly. Whether using Annotation mapping or not doesn't matter since, the error indicated at configuration level not application level error.

If you look carefully and check Spring document you'll find out the "mappingResources" is not configured correctly.

You can recreate the problem and confirm, I'll try and see if that's the problem or there are other problems.


@ali honarmand
Could you tell what's your status and did you get the problem solved?

Yes, but he shouldn't even be setting or using the mappingResource property in his configuration. He needs to remove it and use the correct property.

Mark