Spring Boot – Difference Between AOP and OOP

AOP(Aspect-Oriented Programming) complements OOP by enabling modularity of cross-cutting concerns. The Key unit of Modularity(breaking of code into different modules) in Aspect-Oriented Programming is Aspect. one of the major advantages of AOP is that it allows developers to concentrate on business logic. It is more convenient to use because changes need to be done in only one place. AOP is used along with spring Ioc to provide a very capable middleware solution.

Note: Cross cutting concerns are one of the concerns in any application such as logging, security, caching, etc. They are present in one part of the program but they may affect other parts of the program too.

AOP is used along with Oop as it also works around classes and objects, etc. We can also say that Oop is a basic term for AOP. Different Frameworks used in Aop are AspectJ, JBoss, and Spring. AOP makes the program loosely coupled. AOP separates business logic from cross-cutting concerns. The aspect class which contains cross-cutting concerns is annotated by @Aspect and @EnableAspectJAutoProxy annotations

AOP has different terms like Aspect, Weaving, different types of advices, JoinPoints and Pointcut expressions, etc. These terms are explained below:

◉ Aspect: The cross-cutting concerns are modularized as Aspect. The classes which contain such cross-cutting concerns are annotated with @Aspect annotation.

◉ Join point: Method execution is represented by using Joinpoint.

◉ Advice: Aspect takes action on a particular Joinpoint. This action depends on various advice which is explained below:

◉ Before advice: It runs before the method execution.

◉ After returning advice: It runs after the result is returned by the method.

◉ After throwing advice: It runs after an exception is thrown by the method.

◉ After (finally) advice: It is executed after method execution or after an exception is thrown or the result is returned by the method.

◉ Around advice: It can perform the behavior before and after the method invocation.

◉ Pointcut: Pointcut is a signature that matches the join points.

Illustration: A pointcut expression with before advice:

// Annotation

@Before("execution(* abc.efg.gettingstarted.dao.*.add(..))")

public void allMethods(Point Point) 

{  // Aspect body }

Object-Oriented Programming

The object-oriented programming model works around classes and objects. The main building blocks of Oop are classes, objects, methods, attributes, etc. Oop has various advantages such as code reusability, flexibility, etc. It also maintains modularity using classes.

Note: Object is an instance of class and class is a blueprint of an object created.

The Key unit of Modularity(breaking of code into different modules) in Object-Oriented Programming is class. Oop contains objects, classes, interfaces, etc. Oop lacks the feature of using cross-cutting concerns. It consists of various concepts such as Data abstraction, Encapsulation, Polymorphism, and Inheritance.

Illustration: If there is a fruit class then apple, orange, banana are various objects of the fruit class.

Source: geeksforgeeks.org

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7 Best Plugins For Spring Boot and Java in Eclipse

With the fast-paced technology, every developer wants to build something which requires less time and effort. Being in one of the most growing communities with a count of more than 10 million, developers have to maintain that by working more efficiently. The best plugin you use for your project, the more efficient an application is. Like Python which has uncountable libraries used to build an application, Java has plugins that can be installed in Eclipse to boost productivity and add extra functionalities to the application. Plugins are the smallest, deployable and extensible libraries that contain pieces of code meant for some specific purpose. 

How to install plugins in your IDE (Eclipse)? The answer is using the marketplace in Eclipse. Eclipse marketplace has provided you with the feature to search for a plugin and its download count in the IDE itself. Eclipse has 1667 plugins available for Spring Boot and Java development. Having too many plugins creates confusion as to which one to choose. We have filtered some of the best plugins which you can use for SpringBoot and Java in Eclipse. Let’s explore them one by one. 

1. EGit

EGit (an Eclipse provider for Git) is one of the best plugins for Java developers. As many of us know that Git is an open-source version control system where every developer can manage and update changes to the source code of the website. When using Eclipse for implementing software, EGit is an essential tool that can be used by developers to perform operations like branching and reverting a single file. This plugin provides rebasing and has streamlined commands to pull/push, synchronize view, support, and read for . git/exclude files. It has multiple views to perform Git actions without knowing git commands.

Features of EGit:

◉ Creating backup is easy

◉ Track and update changes

◉ Git repository cloning to pull, push, merge, commit, etc

2. SonarLint

SonarLint is a free plugin for Eclipse that is primarily responsible for detecting and fixing quality and security issues while writing code. It provides instant feedback on the problems faced in the code during development supporting multiple languages other than Java such as JavaScript, PHP, and Python. Additionally, SonarLint can also be integrated with SonarQube or SonarCloud. SonarLint is used by developers to analyze code, detect errors/bugs, and act as a quality editor. 

Features of SonarLint:

◉ Big picture of all issues

◉ Secure, reliable, and maintainable

◉ Find logs wherever needed (Bug detection)

◉ Solves previous issues

3. TestNG

TestNG is an excellent plugin for Eclipse. Developers use it to perform unit, end-to-end, functional, and integration testing for Java projects. After performing tests, all errors found are reported in a new tab which helps you to fix issues efficiently. Also, it contains several templates to create easily. It comes with additional functionalities like data-driven testing, flexible test configuration, and execution models, and has default JDK functions for runtime and logging. If you’re new to Eclipse and don’t know how to install it, here you go – How to Install TestNG on Eclipse IDE?

Features of TestNG:

◉ Dependent groups, methods

◉ Multithreaded execution

◉ Uses more Java and Object-Oriented features

4. ADT (Android Development Tool)

Android Development Tool is an Eclipse plugin designed for Java developers with the intention to provide a robust and integrated environment to build android applications. It lets you perform tasks such as creating an application UI, adding packages on the basis of framework, and debugging applications. Java Programming Foundation – Self-Paced will help you ace the Java trends and will guide you with all the technical concepts. 

Features of ADT:

◉ Powerful and integrated plugin

◉ Custom XML editors

◉ Ability to customize extensively

◉ Supports multiple operating systems

5. Spring Tools

Spring Tool is the most popular Java plugin in Eclipse used to create Spring Boot projects. This plugin comes with tools used to run and monitor apps from inside IDE. You can also navigate through spring-specific code completion. It eases the development of applications by integrating Spring Boot with Initalzr. Having integration with Cloud Foundry, this plugin helps you to make it a perfect plugin for microservice development. The latest version used by Java developers is Spring Boot 4.

Features of Spring Tools:

◉ Provides you with run-time information

◉ Fast and productive

◉ Flexible plugin

◉ Secure and productive

6. EclEmma Java Code Coverage

EclEmma, with its latest version 3.1.6 is available at the Eclipse marketplace is a free code coverage tool for Eclipse. It mainly focuses on supporting the individual developer in an interactive way. It was inspired by the great EMMA library which is developed by Vlad Roubtsov. It helps in faster development, also when the execution is done, it highlights the coverage results with different colors indicating different statuses. 

Features of EclEmma:

◉ Testing(JUnit, TestNG, SWTBOt)

◉ Analysis of code coverage

◉ Allows you to export/import files

◉ Speeds up your development

7. JRebel for Eclipse

JRebel is a tool used for productivity by developers to instantly reload code changes. It helps Java developers to create awesome applications very fast and gives them a high ROI productivity solution. It skips the rebuild, restart, and redeploy cycle common in Java development. It is easy to install and supports the majority of real-world enterprise Java stacks.

Features ofJRebel:

◉ Maintains state of the application

◉ Dedicated integration

◉ Visible real-time change

◉ Integrates with your stack seamlessly

Source: geeksforgeeks.org

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Difference Between Java and Spring

Java vs Spring

Java is one of the most popular object oriented programming languages in the world. Java is heavily used for software and web development. Spring is an open source application framework. Although it is not dependent on any programming model, Spring framework has become very popular among Java programmers. Spring framework acts as a replacement or an addition to Java’s own EJB (Enterprise Java Beans).

What is Java?

Java is one of the most widely used object oriented (and class-based) programming languages used for software development to web development, today. It is a general purpose and concurrent programming language. It was originally developed by Sun Microsystems in 1995. James Gosling is the father of the Java programming language. Oracle Corporation now owns Java (after buying Sun Microsystems recently). Java Standard Edition 6 is its current stable release. Java is a strongly typed language that supports a range of platforms from Windows to UNIX. Java is licensed under GNU General Public License. Java’s syntax is very much similar to C and C++.

Java source files have the .java extension. After compiling Java source files using the javac compiler, it will produce .class files (containing the Java bytecode). These bytecode files can be interpreted using the JVM (Java Virtual Machine). Since the JVM can be run on any platform, Java is said to be multi-platform (cross-platform) and highly portable. Typically, end users use the JRE (Java runtime Environment) to run the Java bytecode (or Java Applets on web browsers). Software developers use the Java Development Kit (JDK) for application development. This is a superset of JRE, which includes a compiler and a debugger. A nice feature of Java is its automatic garbage collection, where objects that are no longer required are removed from memory automatically.

What is Spring?

Spring is an open source application framework. It was developed by Rod Johnson and the first version was released in 2004. Spring 3.0.5 is the current version of the Spring framework. It is licensed under Apache 2.0 license. Any Java application can use the core features of the Spring framework. Spring has become widely used within the Java community, even though the framework is independent of any programming model. Spring framework is used either as a replacement or an addition to EJB model. Some of the most important modules of Spring framework are IoC (Inversion of Control), AOP (Aspect Oriented Programming), MVC (Model View Controller), Transaction Management, Data Access, Authentication, Authorization, Remote Access Management, Batch processing, Messaging and Testing.

What is the difference between Java and Spring?

Java is a programming language, while Spring is an open source application framework. Therefore, they cannot be directly compared. However, Java EE (which is Java’s own server programming platform) is often compared against Spring framework. In fact, Spring framework is very popular among Java programmers (even though Spring is language independent and can be used with any programming model) because it is often used as a replacement or an addition to EJB (which come with Java EE).

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