Question

All websites state that the Spring core container is the basis for complete Spring framework i.e., it is used across
the all modules like AOP, JDBC module, Web module, etc. As per my understanding, the Spring core container’s main purpose is
to inject dependencies, so avoiding the need of factory classes and methods. Is that correct?

Second question: When it is said, Spring core container is the basis for complete Spring framework (e.g., for Spring AOP). As per my understanding, in Spring AOP also, getting the object of classes like
ProxyFactoryBean is achieved by core container. Right?

Thirdly, it is stated that Spring core container avoids the need for programming the use of singletons. How come singleton
classes are avoided by core container?

Answer 1

1. yep

2. yep

3. All beans declared in Spring config files are singleton by default. They are instantiated when your application starts.