What is the data mapper pattern in software design?
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What is the data mapper pattern in software design?
The data mapper pattern is a design pattern that separates the in-memory objects from the database. It allows for a clean separation of concerns, making it easier to manage data and business logic.
Can you explain how it differs from the Active Record pattern?
Sure! The Active Record pattern combines data access and business logic in the same class, while the data mapper pattern keeps them separate, promoting better organization and testability.
What are some advantages of using the data mapper pattern?
Some advantages include improved maintainability, easier testing, and the ability to switch databases without affecting the business logic.
Are there any popular frameworks that implement this pattern?
Yes, frameworks like Doctrine for PHP and Hibernate for Java are popular examples that implement the data mapper pattern.
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