# nehaverma00/springsecuritytutorial architecture

> Architecture diagram of the GitHub repository nehaverma00/springsecuritytutorial, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-10-01). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/nehaverma00/springsecuritytutorial
- Repository: https://github.com/nehaverma00/springsecuritytutorial

## Overview

The tree indicates a small Spring Boot application centered on book management, with an application entry point and separate controller, service, business-logic, DAO, and entity classes. A likely user workflow is to make a book request, process it through the application layers, and access book data. The source excerpts and README are absent, so these relationships are inferred from filenames only; dashed edges mark unverified call flow, not confirmed behavior.

Main entry points: [`src/main/java/com/example/CriteriaBuilder/books/BookService.java`](https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/BookService.java) (Book service), [`src/main/java/com/example/CriteriaBuilder/books/BookController.java`](https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/BookController.java) (Book controller), [`src/main/java/com/example/CriteriaBuilder/books/BookDAO.java`](https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/BookDAO.java) (Book DAO), [`src/main/java/com/example/CriteriaBuilder/CriteriaBuilderApplication.java`](https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/CriteriaBuilderApplication.java) (Application entry)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_app["Application"]
  node_application["Application entry"]
end

subgraph group_books["Book management"]
  node_controller["Book controller"]
  node_service["Book service<br/>[BookService.java]"]
  node_business["Book business logic<br/>[BookBussiness.java]"]
  node_dao["Book DAO<br/>[BookDAO.java]"]
  node_book["Book entity<br/>[Book.java]"]
end

node_user(("User"))

node_user -.->|"sends requests"| node_controller
node_controller -.->|"delegates"| node_service
node_service -.->|"uses logic"| node_business
node_service -.->|"accesses data"| node_dao
node_dao -.->|"maps books"| node_book
node_application -.->|"starts app"| node_controller

click node_application "https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/CriteriaBuilderApplication.java"
click node_controller "https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/BookController.java"
click node_service "https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/BookService.java"
click node_business "https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/BookBussiness.java"
click node_dao "https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/BookDAO.java"
click node_book "https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/Book.java"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_application,node_user toneBlue
class node_controller,node_service,node_business,node_dao,node_book toneAmber
```

## Components

### Application

- [Application entry](https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/CriteriaBuilderApplication.java): `src/main/java/com/example/CriteriaBuilder/CriteriaBuilderApplication.java`

### Book management

- [Book controller](https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/BookController.java): `src/main/java/com/example/CriteriaBuilder/books/BookController.java`
- [Book service](https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/BookService.java): `src/main/java/com/example/CriteriaBuilder/books/BookService.java`
- [Book business logic](https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/BookBussiness.java): `src/main/java/com/example/CriteriaBuilder/books/BookBussiness.java`
- [Book DAO](https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/BookDAO.java): `src/main/java/com/example/CriteriaBuilder/books/BookDAO.java`
- [Book entity](https://github.com/nehaverma00/springsecuritytutorial/blob/master/src/main/java/com/example/CriteriaBuilder/books/Book.java): `src/main/java/com/example/CriteriaBuilder/books/Book.java`

### Other components

- **User**

## Connections

- User → Book controller: sends requests
- Book controller → Book service: delegates
- Book service → Book business logic: uses logic
- Book service → Book DAO: accesses data
- Book DAO → Book entity: maps books
- Application entry → Book controller: starts app