In this video, we are going to discuss about the @Service.
Spring Annotation
Spring Boot Annotation
learn to use @Service annotation in spring boot.
@Service annotation is used to indicate that a class is a service.
-Services in Spring are typically used to encapsulate business logic and perform various operations.
-These classes play a crucial role in the service layer of a Spring application, which is responsible for implementing business logic and coordinating transactions, if needed.
When you annotate a class with @Service, Spring Boot automatically detects and registers it as a bean in the application context.
This allows other components, such as controllers or other services, to easily inject and use instances of the annotated class.


Purpose of using @serivce annotation
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1. Organization and Semantics: The @Service annotation helps in organizing and categorizing your codebase. It provides a clear semantic meaning to the class, indicating that it is a service responsible for handling business logic. It makes the codebase more readable and helps other developers quickly understand the purpose of the annotated class.
2. Component Scanning: Spring uses component scanning to automatically discover and register beans in the application context. When a class is annotated with @Service, it is automatically detected during the component scanning process, and an instance of that class is created as a bean. This automatic bean registration simplifies the configuration and initialization process, as you don't need to manually define each bean in configuration files.
3. Dependency Injection: often used in conjunction with other Spring annotations like @Autowired. When a class annotated with @Service is injected into other components (such as controllers or other services), Spring handles the injection of dependencies automatically. This helps in achieving a loosely coupled design, where components depend on abstractions rather than concrete implementations.
4. Transaction Management: Services often play a role in the service layer of an application, where business logic and transaction management are commonly found. Spring provides support for declarative transaction management, and services are a natural place to transactional boundaries using annotations like @Transactional.
By using the @Service annotation, you leverage the benefits of automatic bean registration, simplified dependency injection, and improved code organization in your Spring application