Trying to evict second level cache - spring

Question

I am trying to evict the second level cache in my persistence entity manager. Looks like I can use the following function defined in the javax.persistence.Cache interface:
/**
* Clear the cache.
*/
public void evictAll();
And in order to get the Cache object, I can use the following function defined in the javax.persistence.EntityManagerFactory interface:
/**
* Access the cache that is associated with the entity manager
* factory (the "second level cache").
* #return instance of the <code>Cache</code> interface
* #throws IllegalStateException if the entity manager factory
* has been closed
*
* #since Java Persistence 2.0
*/
public Cache getCache();
I wire my EntityManagerFactory as such:
#Repository("persistenceManager")
public class PersistenceManager
{
public EntityManagerFactory emf;
#PersistenceUnit(unitName="snap")
public void setEntityManagerFactory(EntityManagerFactory emf) {
this.emf = emf;
...
}
With the following applicationContext configuration file:
< bean id="emf" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
< property name="persistenceUnitName" value="snap" />
< property name="persistenceUnitManager" ref="pum" />
When I call getCache() on the object, I get the following exception:
Caused by: java.lang.AbstractMethodError:
org.hibernate.ejb.EntityManagerFactoryImpl.getCache()Ljavax/persistence/Cache;
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597) at
org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.invokeProxyMethod(AbstractEntityManagerFactoryBean.java:376)
at
org.springframework.orm.jpa.AbstractEntityManagerFactoryBean$ManagedEntityManagerFactoryInvocationHandler.invoke(AbstractEntityManagerFactoryBean.java:517)
at com.sun.proxy.$Proxy26.getCache(Unknown Source) at
com.rbccm.gelp.server.util.PersistenceManager.getCache(PersistenceManager.java:30)
at
com.rbccm.gelp.server.service.SystemDataServiceImpl.evictAllSecondLevelCacheEntries(SystemDataServiceImpl.java:133)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597) at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy34.evictAllSecondLevelCacheEntries(Unknown
Source) at
com.rbccm.gelp.server.SystemGwtServiceImpl.evictAllSecondLevelCacheEntries(SystemGwtServiceImpl.java:132)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597) at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:561)
This indicates to me that getCache (defined in the interface) is not actually implemented in the object that is being wired into EntityManagerFactory. So, I put a breakboint in setEntityManagerFactory(EntityManagerFactory emf) and I noticed the concrete type of the object is in fact: org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean
When I browse the source code of this class, I can confirm that getCache() is not implemented here. I believe I am using the correct/compatible versions:
Hibernate 3.6.10
Spring 3.1.1
JPA 2.0
Has anyone come across any similar issues or is able to reproduce this problem? How do I address this? If not, then what is an alternative to evict all cache items from second level cahce?

Answer 1

hibernate has different cache realization. In hibernate property file use property hibernate.cache.provider_class to set concrete cache class.