Types of AOP

As we mentioned earlier, there are two distinct types of AOP: static and dynamic. The difference between them is really the point at which the weaving process occurs and how this process is achieved.

Static AOP

Many of the first AOP implementations were static. In static AOP, the weaving process forms another step in the build process for an application. In Java terms, you achieve the weaving process in a static AOP implementation by modifying the actual bytecode of your application, changing and extending the application code as necessary. Clearly, this is a well-performing way of achieving the weaving process because the end result is just Java bytecode, and you do not perform any special tricks at runtime to determine when advice should be executed.