Hi,
We are having an issue after configuring our web service project to use Spring 3.2.3 and Hibernate 4.2.3 to connect to a MySQL database.
We are currently using the @PersistenceContext annotation to include the EntityManager in our endpoint.
When attempting to obtain the hibernate session from the EntityManager using getDelegate, we get a "org.hibernate.SessionException: Session is closed!", and when using unwrap(Session.class), we get "java.lang.IllegalStateException: No transactional EntityManager available".
However, when using entityManager directly, without obtaining the hibernate session, we are able to successfully query for objects using the find and query methods.
The full log with Spring Debug enabled when using entityManager.getDelegate:
http://pastebin.com/rXVs6AUf
The full log with Spring Debug enabled when using entityManager.unwrap:
http://pastebin.com/axyCJCQS
Here is our context configuration:
And here is the endpoint class:
If anyone has any ideas or has encountered this problem before, some suggestions would be very helpful.
We are not sure if this is a configuration problem or an issue with Spring / Hibernate / JPA.
If you would like to see / checkout the entire project, we can host this on GitHub.
Thanks.
We are having an issue after configuring our web service project to use Spring 3.2.3 and Hibernate 4.2.3 to connect to a MySQL database.
We are currently using the @PersistenceContext annotation to include the EntityManager in our endpoint.
When attempting to obtain the hibernate session from the EntityManager using getDelegate, we get a "org.hibernate.SessionException: Session is closed!", and when using unwrap(Session.class), we get "java.lang.IllegalStateException: No transactional EntityManager available".
However, when using entityManager directly, without obtaining the hibernate session, we are able to successfully query for objects using the find and query methods.
The full log with Spring Debug enabled when using entityManager.getDelegate:
http://pastebin.com/rXVs6AUf
The full log with Spring Debug enabled when using entityManager.unwrap:
http://pastebin.com/axyCJCQS
Here is our context configuration:
Code:
<sws:annotation-driven/>
<context:component-scan base-package="com.spaghetti"/>
<context:spring-configured />
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass"><value>${database.driverClassName}</value></property>
<property name="jdbcUrl"><value>${database.url}</value></property>
<property name="user"><value>${database.username}</value></property>
<property name="password"><value>${database.password}</value></property>
<property name="initialPoolSize"><value>${hibernate.c3p0.initialPoolSize}</value></property>
<property name="minPoolSize"><value>${hibernate.c3p0.minPoolSize}</value></property>
<property name="maxPoolSize"><value>${hibernate.c3p0.maxPoolSize}</value></property>
<property name="numHelperThreads"><value>${hibernate.c3p0.numHelperThreads}</value></property>
<property name="acquireRetryAttempts"><value>${hibernate.c3p0.acquireRetryAttempts}</value></property>
<property name="acquireIncrement"><value>${hibernate.c3p0.acquireIncrement}</value></property>
<property name="idleConnectionTestPeriod" value="${hibernate.c3p0.idleConnectionTestPeriod}" />
<property name="preferredTestQuery" value="${hibernate.c3p0.preferredTestQuery}" />
<property name="testConnectionOnCheckin" value="${hibernate.c3p0.testConnectionOnCheckin}" />
<property name="testConnectionOnCheckout" value="${hibernate.c3p0.testConnectionOnCheckout}" />
<property name="maxConnectionAge" value="${hibernate.c3p0.maxConnectionAge}" />
<property name="maxIdleTime" value="${hibernate.c3p0.maxIdleTime}" />
</bean>
<bean class="org.springframework.orm.jpa.JpaTransactionManager"
id="transactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<tx:annotation-driven mode="aspectj" transaction-manager="transactionManager" />
<util:map id="jpaPropertyMap">
<entry key="generateDdl" value="true"/>
<entry key="hibernate.hbm2ddl.auto" value="update"/>
<entry key="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect"/>
<entry key="hibernate.ejb.naming_strategy" value="org.hibernate.cfg.ImprovedNamingStrategy" />
<entry key="hibernate.format_sql" value="false"/>
<entry key="hibernate.show_sql" value="false" />
</util:map>
<bean id="entityManagerFactory" name="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="persistenceUnitName" value="puNeoDefault" />
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
<property name="databasePlatform" value="org.hibernate.dialect.MySQL5InnoDBDialect" />
</bean>
</property>
<property name="packagesToScan" value="com.spaghetti"/>
<property name="jpaPropertyMap" ref="jpaPropertyMap"/>
</bean>
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource" />
</bean>
</beans>Code:
@Endpoint
public class EndpointTest {
@PersistenceContext
protected EntityManager entityManager;
private static final String NAMESPACE_URI = "http://www.spaghetti.monster.com/testService";
@PayloadRoot(namespace=NAMESPACE_URI, localPart="testRequest")
@ResponsePayload
@Transactional
public TestResponse performTest(@RequestPayload TestRequest request) throws Exception{
Session session = (Session) entityManager.getDelegate();
Criteria criteria = session.createCriteria(TestEntity.class);
criteria.list();
return new TestResponse();
}
}We are not sure if this is a configuration problem or an issue with Spring / Hibernate / JPA.
If you would like to see / checkout the entire project, we can host this on GitHub.
Thanks.