Hibernate is an open-source, object/relational mapping framework for the Java programming language. The goal of Hibernate is to help developers spare themselves from many tedious, manual data processing tasks. Hibernate is able to create mappings between Java classes and database tables, as well as data types in Java and SQL.
Any non-trivial application working with large quantities of data must rely on caching and other techniques to become more efficient. Caching is a strategy to improve the performance of an application by using a buffer to store frequently accessed data. By reducing the number of database requests and storing the data closer to the CPU, caching can significantly increase an application's speed.