Discussion :

[promachos]

spring version used : 3.0.3.RELEASE
and javax.persistence /persistence-api v1.0

My application is a Spring MVC apps

I created a generic class for the common operation Hibernate CRUD action

There is a pproblem in abstract class AbstractDAO<T> how has a problem to inject the EntityManager while creating the bean.
I am wondering why ?

Can someone give me some Help ?

Code:

Code :

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@PersistenceContext
 public void setEntityManagerFactory(EntityManagerFactory emf) {
             this.jpaTemplate = new JpaTemplate(emf);
 }

here is the stack trace

Code:

Error creating bean with name 'platHome' defined in file [C:\Users\artaud\Documents\workspace-sts-2.3.2.RELEASE\mvc-basi
c\target\classes\com\myshop\dao\plate\PlatHome.class]: Post-processing failed of bean type [class com.myshop.dao.plate.PlatHome] failed; nested exception is java.lang.IllegalStateException:
Specified parameter type [interface javax.persistence.EntityManagerFactory] is incompatible with resource type [javax.persistence.EntityManager]:
java.lang.IllegalStateException: Specified parameter type [interface javax.persistence.EntityManagerFactory] is incompatible with resource type [javax.persistence.EntityManager]
at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.checkResourceType(InjectionMetadata.java:134)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.<init>(PersistenceAnnotationBeanPostProcessor.java:617)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findPersistenceMetadata(PersistenceAnnotationBeanPostProcessor.java:394)
at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(PersistenceAnnotationBeanPostProcessor.java:320)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:798)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:493)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:838)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:780)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:697)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:283)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1064)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)

My config /META-INF/spring-data.xml


Code:

Code :

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<?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:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util"
	xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop"
	xsi:schemaLocation="http://www.springframework.org/schema/aop <a href="http://www.springframework.org/schema/aop/spring-aop-2.5.xsd" target="_blank">http://www.springframework.org/schem...ng-aop-2.5.xsd</a>
		<a href="http://www.springframework.org/schema/beans" target="_blank">http://www.springframework.org/schema/beans</a> <a href="http://www.springframework.org/schema/beans/spring-beans.xsd" target="_blank">http://www.springframework.org/schem...ring-beans.xsd</a>
		<a href="http://www.springframework.org/schema/util" target="_blank">http://www.springframework.org/schema/util</a> <a href="http://www.springframework.org/schema/util/spring-util-2.5.xsd" target="_blank">http://www.springframework.org/schem...g-util-2.5.xsd</a>
		<a href="http://www.springframework.org/schema/tx" target="_blank">http://www.springframework.org/schema/tx</a> <a href="http://www.springframework.org/schema/tx/spring-tx-2.5.xsd" target="_blank">http://www.springframework.org/schem...ing-tx-2.5.xsd</a>
		<a href="http://www.springframework.org/schema/context" target="_blank">http://www.springframework.org/schema/context</a> http://www.springframework.org/schema/context/spring-context-2.5.xsd">
 
 
	<!--  Déclaration du PropertyPlaceholderConfigurer -->
	<bean id="propertyConfigurer"
		class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="locations">
			<list>
				<value>classpath*:db.properties</value>
			</list>
		</property>
	</bean>
 
	<!-- traduction des exceptions -->
	<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />
 
 
	<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />
 
	<bean id="entityManagerFactory"
		class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="jpaVendorAdapter">
			<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
				<property name="database" value="MYSQL" />
				<property name="showSql" value="true" />
			</bean>
		</property>
	</bean>
 
	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource">
		<property name="driverClassName" value="com.mysql.jdbc.Driver" />
		<property name="url" value="jdbc:mysql://localhost/restaurant" />
		<property name="username" value="root" />
		<property name="password" value="" />
	</bean>
 
	<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
		<property name="entityManagerFactory" ref="entityManagerFactory" />
	</bean>
 
	<!--
		Indique a Spring que les transactions sont geree par @Transactional
	-->
	<tx:annotation-driven transaction-manager="transactionManager" />
 
	<!--
		Indique a Spring que la configuration des beans se fait par
		annotations
	-->
	<context:annotation-config />
	<context:component-scan base-package="com.myshop" />
 
 
 
</beans>

Code:

Code :

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package com.myshop.dao.plate;
 
import java.util.Collection;
 
import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;
import javax.persistence.PersistenceUnit;
 
import org.springframework.orm.jpa.JpaTemplate;
 
import com.myshop.domain.plate.Plat;
 
public abstract class AbstractDAO<T>  {
 
        private Class<T> entityClass;
 
        protected JpaTemplate jpaTemplate;
 
        protected Class<T> getEntityClass() {
                return entityClass;
        }
 
        @PersistenceContext
        public void setEntityManagerFactory(EntityManagerFactory emf) {
                this.jpaTemplate = new JpaTemplate(emf);
        }
 
        @SuppressWarnings("unchecked")
        public AbstractDAO(Class<T> entityClass) {
                this.entityClass = entityClass;
        }
 
 
 
        @SuppressWarnings("unchecked")
        public Collection<T> getAll() {
                return jpaTemplate.find("from " + entityClass.getSimpleName());
        }
 
        public void persist(T t) {
    		jpaTemplate.persist(t);
    	}
}

META-INF/persistence.xml
Code:

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<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence">
    <persistence-unit name="jpaTutos" transaction-type="RESOURCE_LOCAL">
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
    </persistence-unit>
 
</persistence>