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Java EE 7 Developer Handbook by Peter A. Pilgrim

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Mapping entity inheritance hierarchy

Relational database management systems are programs that enable, extract, modify, and store information data in the relational model. The relational model is a structure of storage, which is a two dimensional table of rows and columns and is based on the relationship between a set of items in a table column for one entity and another of set of table columns, such that they form a intersection set. Consequently, the database of fixed entities is flat and monomorphic. However it is a structure that is easy to understand and allows businesses to view their data as tabular information.

On the other hand, Java, as an Object-Oriented Programming language, supports inheritance. Apart from encapsulation, inheritance ...

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