DAO and Multiple Databases: Java Design Patterns and Architecture, Part 16

A tutorial on use a memory-based data structure to deal with data in your application, only using the DAO objects to write data to the database when the user selects "save". We'll also review how the MVC pattern helps to organise data and make everything clean and understandable.

Source Code

DesignPatterns16 - Memory vs. Database.zip

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The Factory Pattern