begginers problem: persistence unit not found

[kumarunster]

Hi all,

i have a problem with hibernate-jpa integration with spring. I have searched the forum, but no explicit answer found for the problem

The problem is following:

Error creating bean with name 'entityManagerFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: No persistence unit with name 'pmanager' found


I use the simpliest configuration for jpa, that is described in spring-reference.pdf: LocalEntityManagerFactoryBean

my applicationConfig.xml shows as

<bean id="entityManagerFactory"
	class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
		<property name="persistenceUnitName" value="pmanager" />		
</bean>

<bean id="transactionManager"
	class="org.springframework.orm.jpa.JpaTransactionManager">
	<property name="entityManagerFactory">
		<ref local="entityManagerFactory" />
	</property>
</bean>

<bean id="userDAO" class="test_spring.dao.jpa.UserDAOJPA">
	<property name="entityManagerFactory">
		<ref local="entityManagerFactory" />
	</property>
</bean>

persistence.xml have

<persistence-unit name="pmanager">
		
	<provider>org.hibernate.ejb.HibernatePersistence</provider>
		
	<properties>			
		<property name="hibernate.connection.driver_class"
			value="org.hsqldb.jdbcDriver" />
		<property name="hibernate.connection.url"
			value="jdbc:hsqldb:mem:appfuse" />
		<property name="hibernate.connection.username" value="sa" />
		<property name="hibernate.connection.password" value="" />
		<property name="hibernate.dialect"
			value="net.sf.hibernate.dialect.HSQLDialect" />
		<property name="hibernate.hbm2ddl.auto" value="create" />
			
	</properties>
</persistence-unit>

both, persistence.xml and applicationConfig.xml are in META-INF and in ClassPath

UserDAOJPA looks like

public class UserDAOJPA extends JpaDaoSupport implements UserDAO {

	public User getUser(Long userId) {
		return (User)getJpaTemplate().find(User.class, userId);
	}

	public List getUsers() {
		return getJpaTemplate().find("from User");
	}

	public void removeUser(Long userId) {
		Object user = getJpaTemplate().find(User.class, userId);
		getJpaTemplate().remove(user);
	}

	public void saveUser(User user) {
		getJpaTemplate().persist(user);		
	}

}

following libraries are in ClassPath:


antlr
asm
asm-attrs
sglib
commons-collections
commons-logging
commons-lang
dom4j
ejb3-persistence
hibernate3
hibernate-annotations
hibernate-commons-annotations
hibernate-entitymanager
hsqldb
jta
log4j
spring


have somebody any idea, how i can solve this problem?

many thanks and best regards,

Nikolai

[kumarunster]

I have solved my problem:

the META-INF-Folder was not moved into the bin-Folder (i use Eclipse IDE) if the build runs, it was only in classpath, but physicaly in root project folder...

Regards,

Nikolai

[sam_mars]

hello,

I have teh same problem. I made a war that containts META-INF/persistance.xml.
But the pb persiste.
Any idea ?

Thank's

[kumarunster]

Hi, can you more precise/specify your problem? what do you mean with pb? Have you named your persistence unit "jpa"? How looks your Spring-Configuration?

[paragm]

If you are using eclipse
just right click the (project) -> built path -> Configure built path

In the source tab click Add Folder button
add the parent folder of META-INF folder

[dlmiles]

After a little research.

The JPA *.xml files need to be locatable from the classpath*:META-INF/persistence.xml classpath*:META-INF/orm.xml however other deployment releated files need to be in the top level of the deployment unit. The use of the classpath in this way is mandated by the JPA specification.

In the case of a regular JAR this is always the same directory.

But in the case of a WAR it is possible to have both:

/META-INF/MANIFEST.MF
/WEB-INF/classes/META-INF/persistence.xml


For me I am using Maven layouts for my projects. So a WAR project has:

src/main/webapp/META-INF/MANIFEST.MF
src/main/resources/META-INF/persistence.xml

However when using the standard Eclipse WAR project layout the above two project paths would be:

WebContent/META-INF/MANIFEST.MF
src/META-INF/persistence.xml


It is incorrect to add the toplevel of the website content folder to the Build Path. It is more correct to understand this difference and place the appropriate files accordingly.