http://www.theserverside.com/tip/Spring-Ehcache-in...ond-level-caching-in-Hibernate

Entity classes: Contact.java and Groups.java
DAO classes: ContactsDAOImpl.java
Service Impl class: ContactsServiceFacadeImpl.java
Utility class: BuddyMgmtUtils.java
Configuration xmls: Ehcache.xml , applicationContext.xml
Persistence Unit xml: persistence.xml
Libraries: Ehcache-1.5.0.jar and supporting jar backport-util-concurrent-3.0.jar
Other supporting libraries for the spring framework and remaining java functionalities