Course: Javanista to Java Master - Part 3 Spring Basics

The Spring framework enables developers to create high-performing, reusable, and easily testable enterprise Java applications. Through this course, get a theoretical overview of the Spring framework, its components, and its use cases. Begin by exploring how the Spring framework simplifies application development and delve deeper into the core concepts that allow this. You will then examine dependency injections and inversion of control (IoC). This course will also help you discover how complex dependencies can be managed in an application using Spring Boot. Finally, you'll get a chance to investigate various Spring modules, which can be applied to web development, data integration, and API building. Once you have completed this course, you'll have a solid grasp of the fundamentals of developing enterprise applications using the Spring framework.

A fundamental aspect of the Spring framework, dependency injections allow for loose coupling of components. Use this course to learn more about the elements that come together to configure and inject dependencies into a portion of a large application. Investigate concepts around dependency injection, such as inversion of control, beans, and the Spring Inversion of Control (IoC) framework. The course will also help you get hands-on experience implementing dependency injections and explore BeanFactory, ApplicationContext, and Java-based bean configuration. After you're done with this course, you'll be able to implement dependency injections within the Spring framework to eliminate or reduce unnecessary dependencies in your code.

The Autowiring feature in Spring enables the injection of object dependency implicitly using a setter or constructor injection. Use this course to explore complex beans with dependencies on other beans and how the autowiring feature links them together. Examine how to create beans in reference to other beans, use the @Autowired annotation, and build a bean with multiple dependencies. You will also investigate different types of autowiring and discover how autowiring manages the linking of beans. After completing this course, you will have the skills to construct a complex bean with 1-1 or 1-many dependencies and configure beans with Autowiring.

Using aspect-oriented programming (AOP), global properties of a program, such as logging, auditing, declarative transactions, security, and caching, can be added to your application after you've developed the core features. This course explores the core concepts of AOP before getting hands-on with one of its basic features, the pointcut. Examine the fundamental terminology and use cases of AOP before adding functionality to an application by defining and configuring a function (an aspect) to run before some core operations in your app. As you advance, practice different ways to define pointcuts (the set of core operations in your app) around which the new functionality or aspects need to be added. By the end of the course, you'll have a basic, working knowledge of AOP and pointcuts.

Aspect-oriented programming (AOP) allows significant, global functionality to be added to your application using a modular and non-intrusive method. The action taken before or after method execution is determined by a piece of code called the "advice." Use this course to practice working with different types of advices, starting with the before advice and after advice. Then, work with around advices, which run checks to determine whether a core operation should run at all and what goes on before and after its execution. Move on to use the after-throwing advice to set an action after an error has been thrown and the after-returning advice to determine the steps after a successful run of a method. Upon completing the course, you'll be able to attach different types of advices to aspects in an application.

Object-relational mapping (ORM) allows Java objects to be mapped to database tables and vice versa. Use this course to learn more about the Java Persistence API (JPA), which defines how Java objects and relational data should be mapped, and Hibernate, an object-relational mapping solution for Java environments. Start by exploring how to create an application that uses Hibernate APIs directly to interact with a database and examining hibernate configuration files in greater detail. You'll also investigate how Java objects can be created in an app and then persisted in a database and discover how the same operations can be implemented by applying JPA configurations, which then use Hibernate under the hood. Once you've completed this course, you'll be able to distinguish between JPA and Hibernate while also recognizing how they are connected.

In order to build effective applications in Java, developers must understand how the apps interact with a database. Through this course, gain hands-on experience in defining entities and the relationship between them in a JPA application and their implementation with Hibernate. Begin by defining entities in an app that have identifiers based on a single as well as a combination of properties - i.e., single value primary keys and composite keys. You'll then explore CRUD operations (create, read, update, and delete) using JPA APIs. Finally, you'll delve into defining one-to-one, one-to-many, and many-to-many relationships between entities in an application. After you're done with this course, you'll have a solid grasp of how to define entities using JPA, model their relationships, and how Hibernate translates these into database relations.

Final Exam: Spring Basics will test your knowledge and application of the topics presented throughout the Spring Basics track of the Skillsoft Aspire Javanista to Java Master Journey.