how to configure ehcache

[viajyalexander]

hi folks

i trying to configure a second level cache

for my application

i have added two special attributes for this

<prop key="hibernate.cache.provider_class">org.hibernate .cache.EHCacheProvider</prop>

<class-cache class="com.deemsys.elearn.test.coursecontent.dao.s ampletest" usage="read-write"/>


but iam getting error on <class-cache>

if any body has some sample code

please send me

[Dave Syer]

<class-cache> is in your hbm.xml right? If you put it in a spring config file it won't do anything useful.

[Costin Leau]

To save time and hair, take a look at the examples provided with Hibernate (to see how the cache can be configured) and the ones provided with Spring to understand how the integration works. They provide some good starting points for beginners.

[viajyalexander]

thanks for your reply

now i removed <cache> tag from spring configuration file

and i have already placed the <cache> tag in the corresponding

mapping files

now iam getting error

like

org.springframework.beans.factory.BeanCreationExce ption: Error creating bean with name 'sessionFactory' defined in class path resource [WEB-INF/applicationContext-Arch.xml]: Initialization of bean failed; nested exception is org.hibernate.HibernateException: could not instantiate CacheProvider: org.hibernate.cache.EHCacheProvider
org.hibernate.HibernateException: could not instantiate CacheProvider: org.hibernate.cache.EHCacheProvider
at org.hibernate.cfg.SettingsFactory.createCacheProvi der(SettingsFactory.java:326)
at org.hibernate.cfg.SettingsFactory.buildSettings(Se ttingsFactory.java:219)
at org.hibernate.cfg.Configuration.buildSettings(Conf iguration.java:1463)
at org.hibernate.cfg.Configuration.buildSessionFactor y(Configuration.java:1004)
at org.springframework.orm.hibernate3.LocalSessionFac toryBean.newSessionFactory(LocalSessionFactoryBean .java:825)
at org.springframework.orm.hibernate3.LocalSessionFac toryBean.afterPropertiesSet(LocalSessionFactoryBea n.java:751)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.invokeInitMethods(Abstr actAutowireCapableBeanFactory.java:1091)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.createBean(AbstractAuto wireCapableBeanFactory.java:396)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:233)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:145)
at org.springframework.beans.factory.support.DefaultL istableBeanFactory.preInstantiateSingletons(Defaul tListableBeanFactory.java:277)
at org.springframework.context.support.AbstractApplic ationContext.refresh(AbstractApplicationContext.ja va:313)
at org.springframework.context.support.ClassPathXmlAp plicationContext.<init>(ClassPathXmlApplicationCon text.java:87)
at org.springframework.context.support.ClassPathXmlAp plicationContext.<init>(ClassPathXmlApplicationCon text.java:72)
at org.springframework.test.AbstractSpringContextTest s.loadContextLocations(AbstractSpringContextTests. java:135)
at org.springframework.test.AbstractDependencyInjecti onSpringContextTests.loadContextLocations(Abstract DependencyInjectionSpringContextTests.java:224)
at org.springframework.test.AbstractSpringContextTest s.getContext(AbstractSpringContextTests.java:115)
at org.springframework.test.AbstractDependencyInjecti onSpringContextTests.setUp(AbstractDependencyInjec tionSpringContextTests.java:192)
at junit.framework.TestCase.runBare(TestCase.java:125 )
at junit.framework.TestResult$1.protect(TestResult.ja va:106)
at junit.framework.TestResult.runProtected(TestResult .java:124)
at junit.framework.TestResult.run(TestResult.java:109 )
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:2 08)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRu nner.runTests(RemoteTestRunner.java:436)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRu nner.run(RemoteTestRunner.java:311)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRu nner.main(RemoteTestRunner.java:192)
Caused by: java.lang.ClassNotFoundException: org.hibernate.cache.EHCacheProvider
at java.net.URLClassLoader.findClass(URLClassLoader.j ava:376)
at java.lang.ClassLoader.loadClass(ClassLoader.java(C ompiled Code))
at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:442)
at java.lang.ClassLoader.loadClass(ClassLoader.java:5 04)
at java.lang.Class.forName1(Native Method)
at java.lang.Class.forName(Class.java:180)
at org.hibernate.util.ReflectHelper.classForName(Refl ectHelper.java:108)
at org.hibernate.cfg.SettingsFactory.createCacheProvi der(SettingsFactory.java:323)
... 27 more

[dserodio]

java.lang.ClassNotFoundException: org.hibernate.cache.EHCacheProvider

Means that the JVM can't find EHCache. Make sure the EHCache JAR (I believe it's called ehcache-1.1.jar) is in your classpath.