Coding Session: How Validation and Data Binding Works in Spring Framework #spring #java

Hello Everyone,
In this video, we will explore how validation and data binding work in Spring. Data binding is the process of binding request parameters to an object, while validation is the process of ensuring that the data entered by the user is valid and meets the requirements set by the application.

We will start by creating a simple application that will handle a form submission. We will then use the Spring validation framework (Hibernate Validator) to validate the form data and ensure that the entered data is valid.

Next, we will look at data binding and how we can bind request parameters to an object using Spring's data binding capabilities. We will also explore how to handle errors during data binding and validation and display them to the user.

Finally, we will dive into some coding sessions to demonstrate how to implement validation and data binding in a Spring application. We will use practical examples and provide step-by-step instructions to help you understand how to implement these features in your own Spring applications.

By the end of this video, you will have a solid understanding of how validation and data binding work in Spring and be able to implement these features in your own applications with ease.

Please do share and like the video. Also let me know in the comment section with your feedback.

0:00 Introduction
0:20 What is Validation?
1:20 Why do we need Validation?
1:41 How Validation is Implemented in Spring?
2:22 What is Hibernate Validator?
3:15 How to add Hibernate Validator Dependency in Application?
4:02 Coding Session: Validation using Hibernate Validator and Data Binding
15:26 What is Data Binding and it's Need?
15:51 How Data Binding Works in Spring?

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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