Introduction to Aspect Oriented Programming in Spring Framework
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In this video, we will explore what is Aspect Oriented Programming and how it works.
Aspect-Oriented Programming (AOP) is a programming paradigm that allows developers to modularize cross-cutting concerns in a software system. Cross-cutting concerns are functionalities or features that span multiple modules of an application, and are not neatly encapsulated within a single module. Examples of cross-cutting concerns include logging, security, error handling, and performance monitoring.
In AOP, cross-cutting concerns are defined as "aspects," which are separate modules that can be woven into the core business logic of the application. Aspects encapsulate the code that implements a cross-cutting concern, and they can be applied to specific join points within the application's code base.
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0:00 Introduction
0:25 What is Functional Programming?
1:18 What is Object Oriented Programming?
2:47 Why Aspect Oriented Programming was Needed?
5:00 How Aspect Oriented Programming Helped Fixing the Issue?
6:30 Benefits of using AOP
8:03 High Level Steps to Implement AOP
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Spring Framework: • Spring Framework
DevOps: • DevOps
Java Design Patterns: • Design Patterns
Java 8 Features: • Java 8
Core Java Complete Tutorial: • Core Java Complete Guide
Interview Preparation for Java: • Interview Preparation Java
Python: • Python
Linux: • Linux
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The Spring Framework is an application framework and inversion of control container for the Java platform. The framework's core features can be used by any Java application, but there are extensions for building web applications on top of the Java EE platform.(Wikipedia)
A BeanFactory is like a factory class that contains a collection of beans. The BeanFactory holds Bean Definitions of multiple beans within itself and then instantiates the bean whenever asked for by clients.
The BeanFactory is the actual container which instantiates, configures, and manages a number of beans. These beans typically collaborate with one another, and thus have dependencies between themselves. These dependencies are reflected in the configuration data used by the BeanFactory
BeanFactory also takes part in the life cycle of a bean, making calls to custom initialization and destruction methods.
Bean life cycle is managed by the spring container. When we run the program then, first of all, the spring container gets started. After that, the container creates the instance of a bean as per the request, and then dependencies are injected. And finally, the bean is destroyed when the spring container is closed. Therefore, if we want to execute some code on the bean instantiation and just after closing the spring container, then we can write that code inside the custom init() method and the destroy() method.
Spring Bean Scope in a nutshell refers to the lifecycle and visibility of a bean instance in a Spring-based application. Bean scopes determine the number of instances of a bean that will be created and how long the bean instances will exist. The five main scopes in Spring are: Singleton, Prototype, Request, Session, and Global Session.
#java #spring #springframework
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