What is aspect oriented programming in spring

In this tutorial we have seen how the aspect oriented programming can be used to handle cross cutting concerns in an application. AOP allows to modularize these cross cutting concerns and apply it on the method during its execution. For that AOP provides many ways to intercept the method execution. An aspect can be attached to events like before, after method call, after an exception is thrown etc.

A lot of boiler plate code can be avoided by the judicious usage of AOP concepts. Thus AOP helps developers to write efficient code with ease. Introduction to Aspect oriented programming in spring. Basic Concepts In Object Oriented Programming, class is the unit of modularity which means a piece of code that is intended to perform a particular function. For example a logging aspect contains the code for logging.

Aspect annotation is used mark an aspect. Join point: refers to the point in the application execution where we can apply the aspect. For example we can say the aspect needs to be called when a method invocation happens or exception is thrown. Advice : This says when and where an aspect needs to be invoked. There are "around," "before" and "after" advice types.

The actual execution of aspect logic happens here. The functions that span multiple points of an application are called cross-cutting concerns and these cross-cutting concerns are conceptually separate from the application's business logic. There are various common good examples of aspects like logging, auditing, declarative transactions, security, caching, etc. Dependency Injection helps you decouple your application objects from each other and AOP helps you decouple cross-cutting concerns from the objects that they affect.

AOP is like triggers in programming languages such as Perl,. NET, Java, and others. Spring AOP module provides interceptors to intercept an application. For example, when a method is executed, you can add extra functionality before or after the method execution.

These terms are not specific to Spring, rather they are related to AOP. This is a module which has a set of APIs providing cross-cutting requirements. For example, a logging module would be called AOP aspect for logging. An application can have any number of aspects depending on the requirement.

This represents a point in your application where you can plug-in the AOP aspect. Why use Component annotation? Aspect is automatically detected by Spring. A blog about Java and its related technologies, the best practices, algorithms, interview questions, scripting languages, and Python. About Me. Contact Us. Privacy policy. Guest Posts. Secure Hash Algorithms. Best Way to Learn Java. How to Start New Blog. Skip to content. Spring AOP Tutorial. What is Spring AOP?

What is advice, joinpoint or pointcut? An important term in AOP is advice. It is the action taken by an aspect at a particular join-point. Joinpoint is a point of execution of the program, such as the execution of a method or the handling of an exception.

In Spring AOP, a joinpoint always represents a method execution.