charan-1707/employee-management-system

How charan-1707/employee-management-system works

This is a Spring Boot REST API for employee record management. Clients send validated create, read, update, partial-update, and delete requests through the controller; the service applies those operations, maps between DTOs and entities, and delegates persistence to the Spring Data repository. Responses are standardized by response advice, while centralized exception handling formats errors. The README documents MySQL persistence. Source excerpts show the main request and service flow; database wiring details are not sampled, so that connection is based on the README’s architecture description.

Main entry points: EmployeeController.java Employee Controller · EmployeeService.java Employee Service · GlobalExceptionHandler.java Exception Handler · EmployeeRepository.java Employee Repository

Components 15

REST API

Employee Controller src/main/java/com/charan/employeemanagementsystem/controller/EmployeeController.java
Response Wrapper src/main/java/com/charan/employeemanagementsystem/advices/GlobalResponseHandler.java
API Response src/main/java/com/charan/employeemanagementsystem/advices/ApiResponse.java

Employee Services

Employee Service src/main/java/com/charan/employeemanagementsystem/service/EmployeeService.java
Mapper Configuration src/main/java/com/charan/employeemanagementsystem/config/ModelMapperConfig.java

Employee Data

Employee DTO src/main/java/com/charan/employeemanagementsystem/dto/EmployeeDTO.java
Employee Entity src/main/java/com/charan/employeemanagementsystem/entity/EmployeeEntity.java
Employee Repository src/main/java/com/charan/employeemanagementsystem/repository/EmployeeRepository.java

Validation And Errors

Role Constraint src/main/java/com/charan/employeemanagementsystem/annotations/EmployeeRoleValidation.java
Role Validator src/main/java/com/charan/employeemanagementsystem/annotations/EmployeeRoleValidator.java
Exception Handler src/main/java/com/charan/employeemanagementsystem/advices/GlobalExceptionHandler.java
API Error src/main/java/com/charan/employeemanagementsystem/advices/ApiError.java
Not Found Exception src/main/java/com/charan/employeemanagementsystem/exceptions/ResourceNotFoundException.java

Other components

API Client
MySQL Database

Connections 18

API Client → Employee Controller: sends requests README.md
Employee Controller → Employee Service: delegates operations src/main/java/com/charan/employeemanagementsystem/controller/EmployeeController.java
Employee Controller → Employee DTO: validates input src/main/java/com/charan/employeemanagementsystem/controller/EmployeeController.java
Employee Service → Employee Repository: reads and writes src/main/java/com/charan/employeemanagementsystem/service/EmployeeService.java
Employee Service → Employee DTO: maps to and from src/main/java/com/charan/employeemanagementsystem/service/EmployeeService.java
Employee Service → Employee Entity: maps to and from src/main/java/com/charan/employeemanagementsystem/service/EmployeeService.java
Employee Repository → Employee Entity: persists src/main/java/com/charan/employeemanagementsystem/repository/EmployeeRepository.java
Employee Repository → MySQL Database: persists via JPA README.md
Employee DTO → Role Constraint: applies constraint src/main/java/com/charan/employeemanagementsystem/dto/EmployeeDTO.java
Role Constraint → Role Validator: registers validator src/main/java/com/charan/employeemanagementsystem/annotations/EmployeeRoleValidation.java
Employee Controller → Exception Handler: errors handled by advice src/main/java/com/charan/employeemanagementsystem/advices/GlobalExceptionHandler.java
Employee Service → Not Found Exception: raises when absent src/main/java/com/charan/employeemanagementsystem/service/EmployeeService.java
Employee Controller → Not Found Exception: raises when absent src/main/java/com/charan/employeemanagementsystem/controller/EmployeeController.java
Exception Handler → Not Found Exception: handles exception src/main/java/com/charan/employeemanagementsystem/advices/GlobalExceptionHandler.java
Exception Handler → API Error: builds error src/main/java/com/charan/employeemanagementsystem/advices/GlobalExceptionHandler.java
Exception Handler → API Response: wraps error src/main/java/com/charan/employeemanagementsystem/advices/GlobalExceptionHandler.java
Response Wrapper → API Response: wraps response src/main/java/com/charan/employeemanagementsystem/advices/GlobalResponseHandler.java
Employee Controller → API Client: returns HTTP response README.md

Drawn by GitDiagram on November 10, 2026 from the repository's file tree, README and source files. Read as Markdown ·