SimplePersistence - Employee Management System

A Java-based employee management system with GUI interface and multiple persistence options including MongoDB and local database storage.

Features

• Employee Management: Add, view, update, and manage employee records
• Multiple Storage Options: Support for both MongoDB and local database persistence
• GUI Interface: User-friendly graphical interface for easy interaction
• Data Serialization: JSON and GSON support for data interchange
• MVC Architecture: Clean separation of Model, View, and Controller components

Requirements

• Java 21 or higher
• Maven 3.6+ for build management
• MongoDB (optional, for MongoDB persistence)

Dependencies

• org.json (20210307) - JSON processing
• gson (2.8.8) - Google's JSON library
• mongodb-driver-sync (5.1.2) - MongoDB Java driver
• slf4j-api and slf4j-simple (2.1.0-alpha1) - Logging framework

Project Structure

src/main/java/org/example/
├── Main.java                    # Application entry point
├── MODEL/
│   └── EmployeeClass.java       # Employee data model
├── VIEW/
│   └── GUI.java                 # Graphical user interface
└── CONTROLLER/
    ├── Controller.java          # Main application controller
    ├── ConsoleTimer.java        # Console utilities
    ├── ConsoleWrite.java        # Console output utilities
    └── EMPLOYEE/                # Employee-specific controllers
        ├── EmployeeDatabase.java # Database persistence
        └── EmployeeMongo.java   # MongoDB persistence

Getting Started

1. Clone the Repository

git clone https://github.com/snxethan/DBT230-LIBRARY.git
cd DBT230-LIBRARY

2. Build the Project

mvn clean compile

3. Run the Application

mvn exec:java -Dexec.mainClass="org.example.Main"

Or compile and run directly:

mvn clean package
java -cp target/classes org.example.Main

Usage

1. Start the Application: Run the main class to launch the GUI interface
2. Choose Persistence Method: Select between local database or MongoDB storage
3. Manage Employees: Use the GUI to add, view, update, or delete employee records
4. Data Persistence: Employee data is automatically saved using your chosen persistence method

Employee Data Fields

• ID: Unique employee identifier (integer, cannot be negative)
• First Name: Employee's first name
• Last Name: Employee's last name
• Hire Year: Year the employee was hired

MongoDB Setup (Optional)

If you want to use MongoDB persistence:

1. Install and start MongoDB on your system
2. The application will connect to the default MongoDB instance (localhost:27017)
3. Employee data will be stored in the configured MongoDB database

Development

This project follows the MVC (Model-View-Controller) pattern:

• Model: EmployeeClass represents the employee data structure
• View: GUI provides the user interface
• Controller: Controller manages application logic and coordinates between model and view

Building for Production

mvn clean package

This will create a JAR file in the target/ directory that you can distribute and run.

License

This project is part of the DBT230 course curriculum.

Author(s)

• Ethan Townsend (snxethan)
• Victor Keeler
• Jacob Brincefield

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This is a course project for database and programming fundamentals.