SimpleORM
SimpleORM is an open source object relational mapping tool written in Java. It is intended as a simple, yet effective layer on top of JDBC.
SimpleORM represents records as a map of fields to values. Hence no reflection or configuration XML is used. Unlike Hibernate, the table mappings are part of the code. SimpleORM achieves simplicity at the cost of transparent persistence. A SimpleORM connection is based on an existing JDBC connection and is associated with the current thread.