Creational Design Patterns in Modern C++ - Using the Abstract Factory

The video tutorial explores various techniques for instantiating clauses from different databases. Initially, macros and conditional statements were used, but they had limitations. The factory method was introduced to reduce dependency on concrete clauses, but it couldn't ensure instances from a single database. The abstract factory design pattern was then implemented, allowing clients to create instances from different databases without depending on their concrete types. The video details the implementation process, including creating factory classes for SQL and MySQL databases, and demonstrates using the factory in the main function. The Singleton pattern ensures a single factory instance is used throughout the program.

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