What is Light Object Mapping?
The entities are acted as classes, which are manually mapped in the Relational Tables. The Syntax is hidden from the business logic using specific design patterns. In this Light Object Mapping in Hibernate is one of the valuable levels of ORM quality that approach for successful application which having less number of entities, or for common applications, Metadata and driven data models.
For details about light object mapping in hibernate read this article link: http://www.roseindia.net/hibernate/hibernate4/index.shtml