Example3.TransactionManagement

Example 3: Transaction Management

This example demonstrates transaction support in the GraphModel library, including commit, rollback, and data consistency.

What You'll Learn

• Beginning and managing transactions
• Committing successful operations
• Rolling back failed operations
• Ensuring data consistency across multiple operations
• Working with transactions in a banking scenario

Key Concepts Demonstrated

1. Basic Transaction Usage

using (var transaction = await graph.BeginTransactionAsync())
{
    try
    {
        // Perform operations
        await transaction.CreateNode(node);
        await transaction.UpdateNode(node);

        // Commit if successful
        await transaction.CommitAsync();
    }
    catch
    {
        // Rollback on failure
        await transaction.RollbackAsync();
        throw;
    }
}

2. Transaction Isolation

All operations within a transaction are isolated from other transactions until committed.

3. Automatic Rollback

If an exception occurs and the transaction is not explicitly committed, it will be rolled back automatically when disposed.

4. Complex Multi-Operation Transactions

Transactions can include multiple creates, updates, and deletes that all succeed or fail together.

Banking Example

The example simulates a simple banking system with:

• Account creation
• Money transfers between accounts
• Balance validation
• Transaction history

Running the Example

cd examples/Example3.TransactionManagement
dotnet run

Make sure Neo4j is running and accessible at neo4j://localhost:7687.