Data persistence
Abstract
This chapter explains how to transform object-oriented models into relational databases and also how to load and save data automatically. Initially, the object-relational mapping technique, used to convert objects into relational database records, is explained. Then, we present a persistence mechanism based on virtual proxies, brokers, and caches.
Keywords
Broker; commit; lazy load; object-relational mapping; ORM; relational database; rollback; virtual cache; and virtual proxy
Key topics in this chapter
- • Object-relational Mapping (ORM)
- • Virtual Proxy
- • Brokers
- • Virtual Caches
17.1 Introduction to data persistence
The availability of persistence mechanisms for commercial languages1 has made database design much easier for ...
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