NoticeThe following posts are based on concepts studied from Toby’s Spring by Ilmin Lee. Each post reflects my own understanding and interpretation of the material. Some explanations may contain inaccuracies, if you notice any, please let me know, and I will review and correct them as soon as possible.
Embarrassing DAO
In the first chapter, we begin learning about the troublesome DAO. However, before diving into that section, the author wanted to clearly review and reaffirm the concept of DAO. So, let’s start by organizing what DAO actually means.
DAO
Separation of DAO
Expansion of DAO
Inversion of Control
Spring’s IoC
Singleton Registry and Object Scope
Dependency Injection (DI)
Configuration Using XML
Summary