above. Lets understand Event.hbm.xml <?xml version=”1.0″?>   “-//Hibernate/Hibernate Mapping DTD 3.0//EN” “http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd”> The mapping definition starts with the hibernate-mapping element. The package attribute sets the default package for unqualified class names in the mapping. With this attribute set, you need only give the class name for other persistent classes listed in