Transactional Context pattern

Description

Implement the Transactional Context design pattern which ensures that a set of operations are executed within a transaction context, maintaining atomicity, consistency, isolation, and durability (ACID properties). This pattern is essential for managing transactions in complex systems, providing a mechanism to rollback in case of failures, and ensuring that data remains consistent.

Main elements of the pattern include:

• Transaction: Represents the transaction boundary, containing operations to commit or rollback changes.
• Transactional Context: Maintains the state of the transaction, coordinating the operations and ensuring that they adhere to ACID properties.
• Transaction Manager: Manages the lifecycle of transactions, including beginning, committing, and rolling back transactions.
• Operations: The individual operations that need to be executed within the transaction context.

References

• Java Design Patterns Project Contribution Guidelines
• Transactional Context Design Pattern

Acceptance Criteria

1. Implement classes for Transaction, Transactional Context, Transaction Manager, and Operations as described in the pattern.
2. Ensure that the implementation adheres to the ACID properties.
3. Provide unit tests demonstrating the correct behavior of the transactional context, including scenarios for commit and rollback.

Start with the Java Design Patterns Project Contribution Guidelines and the linked Transactional Context reference; the issue does not name repository files or entry points. Define the Transaction, Transactional Context, Transaction Manager, and Operations boundaries, then add unit tests covering commit, rollback, and the stated ACID behavior.