The Active Joint Point Model
The most critical compound engaged in any aspect-oriented language’s design happens to be the join point model and this proposes the usual frame of reference which turns it easy to define the energetic crosscutting concerns’ structure.
AspectJ proposes numerous types of join points and amongst them, the most commonly used is known as method call join points. This method includes the object’s actions that receive a method call and it comprises all those actions which include a method call.
Every method that is called at runtime happens to be a distinct join point even when it emerges from that call expression only in the program. Numerous other join points might run when a method known as join point has been executing.
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Benefits of AspectJ
AspectJ is hugely admired by developers from all across the globe as it is a well-matched extension to the language of Java programming and it is an implementation of AOP. It is hugely utilized in many Java frameworks, such as Spring though most of the developers aren’t aware of AspectJ. Many times, developers hold this opinion that they AspectJ is pretty tough to learn or it can turn the code complicated.
This is the reason; developers abstain themselves from learning the useful and potent technologies of AspectJ. There are many benefits of AspectJ and some of them are mentioned below:
- AspectJ can be learned easily – A person can easily learn AspectJ and it comprises three central concepts, Pointcut, Advice, and Join Point. Pointcut permits a developer to write expressions for selecting join points of interest plus capture the context information of the join point. Advice permits developers to execute a few codes at the join points that are chosen by the pointcut.
- AspectJ proposes a usual mechanism for dealing with crosscutting concerns – AspectJ maintains uniformity in application code and averts bugs from getting crept into the app. The benefit of possessing a uniform way turns more apparent when people deal with a crosscutting concern, such as Exception Handling.
- With AspectJ, you can deal with problems in a different way. Retrying a web service call or a network failure is a usual problem and many times, it gets integrated with the business logic as developers fail to discover a path to detach the fundamental business concerns from concerns, such as connection retry. When you know AspectJ, you can look at problems differently.
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