Exploring the Spring & spring framework architectures Spring is a light weight framework of other various frameworks such as spring-core, spring-mvc, spring-AOP & so on.

This git-repo contains all the hands-on learning & the projects related to all the spring framework family.

First talking about the various XML & Java based configurations & annotations

• Spring fundamentals-repo
  consists of a basic application, which describes how the wiring of the model, service & repository components are wired together. Note: The instances of components are tightly coupled in this application

• Spring XML
  is wired up with applicationContext.xml for constructor injection, setter injection & bean Autowire configurations such as

- byType: searches for the bean in given class (doesn't care about the setter name)
- byName: searches for the setter injection (setter method) in the given class
- Constructor: requires the no-argument(default) constructor
- no : (none)

• Spring XML Annotations
  Here the application is modified to use the stereotype bean annotations along with constructor & setter injections in the applicationContext such as

- @Component : any POJO based annotation
- @Service : business logic tier, (in the service-interface class)
- @Repository : data layer

• Spring JAVA Annotations
  
  • The application is purely based on the Java Annotations with AppConfig & properties file. Here the components are wired up with @componentScan which searches at the root package level.
  • And beans are configured to use setter & constructor injection. Also, the application is configured with singleton & prototype scope configurations at the service tier