I am trying to unwrap the Hibernate Session from injected EntityManager, as I need to use Hibernate's native Criteria API.
When I try to use Criteria i get following exception:
Caused by: java.lang.IllegalStateException: No transactional EntityManager available at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:224) at com.sun.proxy.$Proxy28.unwrap(Unknown Source) at sk.uniba.ais2.fajr.dao.impl.PouzivatelDAOHibernate.findByLogin(PouzivatelDAOHibernate.java:22) at sk.uniba.ais2.fajr.bo.PouzivatelService.findByLogin(PouzivatelService.java:20) at sk.uniba.ais2.fajr.mvc.controller.FooController.getFoooFOO(FooController.java:38) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:690) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) ... 62 more However, when I use the Query api from EntityManager itself, everything works just fine.
My configuration:
db.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" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" default-autowire="byName" xmlns:jpa="http://www.springframework.org/schema/data/jpa" xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <!-- Scans within the base package of the application for @Components to configure as beans --> <bean id="placeholderConfig" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:db.properties" /> </bean> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"> <property name="driverClass" value="${db.driver}" /> <property name="jdbcUrl" value="${db.url}" /> <property name="user" value="${db.username}" /> <property name="password" value="${db.password}" /> </bean> <bean id="jpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"> <property name="showSql" value="true" /> <property name="database" value="ORACLE" /> </bean> <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="jpaVendorAdapter" ref="jpaVendorAdapter" /> <property name="packagesToScan" value="sk.uniba.ais2.fajr.entities" /> <property name="jpaPropertyMap"> <map> <entry key="hibernate.default_schema" value="AIS2" /> </map> </property> </bean> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="entityManagerFactory" /> </bean> <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" /> <jpa:repositories base-package="sk.uniba.ais2.fajr.dao" /> </beans> PouzivatelDAOHibernate which does not work:
@Repository public class PouzivatelDAOHibernate implements PouzivatelDAO { @PersistenceContext private EntityManager entityManager; @Override public Pouzivatel findByLogin(String login) { Criteria criteria = entityManager.unwrap(Session.class).createCriteria(Pouzivatel.class); return (Pouzivatel) criteria.add(Restrictions.eq("login", login)).uniqueResult(); } } PouzivatelDAOHibernate which DOES work:
@Repository public class PouzivatelDAOHibernate implements PouzivatelDAO { @PersistenceContext private EntityManager entityManager; @Override public Pouzivatel findByLogin(String login) { // Criteria criteria = entityManager.unwrap(Session.class).createCriteria(Pouzivatel.class); // return (Pouzivatel) criteria.add(Restrictions.eq("login", login)).uniqueResult(); Query query = entityManager.createQuery("select p from Pouzivatel p where login=?"); query.setParameter(1, login); return (Pouzivatel) query.getSingleResult(); } } EDIT: I am using Spring Data JPA