Database Session State pattern

Description:

The Database Session State design pattern is used to manage user session data by storing it in a relational database. This pattern is particularly useful for maintaining session state across multiple servers in a web farm or distributed system, ensuring consistency and reliability.

Main Elements of the Pattern:

• Session Data Storage: Store user session data in a relational database.
• Session Identifier: Use a unique session identifier to fetch and update session data.
• Database Operations: Implement CRUD operations to manage session data.
• Session Expiry: Handle session expiration and cleanup of stale data.
• Concurrency Handling: Ensure thread-safe operations and handle concurrent access to session data.

References:

1. Martin Fowler - Database Session State
2. YouTube Video on Database Session State
3. Java Design Patterns - Contribution Guidelines

Acceptance Criteria:

1. Implement a robust solution for storing and retrieving session data from a relational database.
2. Ensure proper handling of session identifiers, session expiration, and cleanup mechanisms.
3. Provide comprehensive documentation and examples demonstrating the usage of the Database Session State pattern in the project.

Start with the Java Design Patterns contribution guidelines and the referenced Database Session State pattern, then inspect how existing patterns are structured in the repository. Done means a robust relational-database session implementation with identifier handling, expiry and cleanup, concurrency handling, documentation, and usage examples.