What is AOP

AOP stands for "aspect-oriented programming". AOP is first introduced by Gregor Kickzales in the year 1996. AOP provides the ability to implement crosscutting logic- that is, logic that applies to many parts of your application in a single place and to have that logic applied across your application.

There are two kinds of AOP implementation. Static AOP, such as AspectJ provides a compile time solution for building AOP based logic and adding it to the application.

Dynamic AOP such as Spring, allows crosscutting logic to be applied arbitrary to any other code at runtime. it is basically used by Transaction Management.