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Spring / Spring interview questions

Explain Aspect oriented Programming.

Enterprise applications have some common cross-cutting concerns that will be applied to the different types of objects and application modules such as logging, transaction management, data validation and authentication.

In object-oriented Programming, modularity of application is achieved by classes whereas in AOP application modularity is achieved by Aspects and they are configured across methods.

AOP takes out the direct dependency of cross-cutting tasks from classes which is not possible in normal object-oriented programming. For example, we can have a separate class for logging but again the classes will have to call these methods for logging the data.

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