The Key Differences between Managed Beans and CDI Beans in JavaServer Faces (JSF) Framework

Managed Beans and CDI (Contexts and Dependency Injection) Beans are two types of beans used in the JavaServer Faces (JSF) framework. Here are the key differences between them:

• Declaration: Managed Beans are declared using the @ManagedBean annotation, while CDI Beans are declared using the @Named annotation.
• Scope: Managed Beans have predefined scopes like request, session, and application, while CDI Beans have more flexible scopes like @RequestScoped, @SessionScoped, @ApplicationScoped, etc.
• Lifecycle: Managed Beans are managed by the JSF framework, while CDI Beans are managed by the CDI container and have a more sophisticated lifecycle management.
• Injection: Managed Beans rely on implicit injection using expressions in JSF pages, while CDI Beans support explicit injection using annotations like @Inject.

Understanding these key differences between Managed Beans and CDI Beans is crucial for developing efficient and scalable JSF applications.