nrrajes/employee-app

Purpose and Entry Point

This is a Java/Spring Boot employee-management service, organized as a layered REST application with persistence. The executable bootstrap is src/main/java/com/nr/devops/employeeapp/EmployeeAppApplication.java; Maven builds and runs it via pom.xml.

API Boundary

HTTP requests enter the controller layer at src/main/java/com/nr/devops/employeeapp/controller/EmployeeController.java. This is the application’s external boundary: it maps employee-oriented REST operations to service calls and returns API responses.

Business-Service Layer

src/main/java/com/nr/devops/employeeapp/service/EmployeeService.java owns employee use-case orchestration between the HTTP API and persistence. This layer should contain validation, lookup/error handling, and CRUD workflow decisions rather than exposing repository behavior directly.

Domain Model

src/main/java/com/nr/devops/employeeapp/model/Employee.java represents the employee domain/persistence record. It is the primary data shape passed through controller, service, and repository layers.

Persistence Boundary

src/main/java/com/nr/devops/employeeapp/repository/EmployeeRepository.java is the data-access abstraction used by the service. It isolates the application from the underlying database and likely relies on Spring Data/JPA conventions configured through the application runtime.

Primary Flow

The main control path is:

EmployeeController → EmployeeService → EmployeeRepository → database.

Retrieved or saved Employee instances flow back through the same layers to the client. The controller/service boundary separates transport concerns from business logic; the service/repository boundary separates use cases from database operations.

Runtime and Deployment

The application runs on the Spring Boot JVM runtime. Base configuration is in src/main/resources/application.yaml; container-oriented overrides are in src/main/resources/application-docker.yaml. Container delivery is defined by Dockerfile and local multi-container execution by docker-compose.yml, implying an external database/service dependency supplied in Docker environments. CI/CD orchestration is represented by Jenkinsfile.