Understanding AddAsync
(Asynchronous) and Add
(Synchronous)
- Core Purpose: Both methods serve the same mission: adding a new entity to a persistence layer (often a database) managed by your Object-Relational Mapper (ORM) or data access layer.
- Key Distinction:
AddAsync
operates asynchronously, enhancing responsiveness in UI-centric applications by not blocking the UI thread.Add
works synchronously, completing the operation in the current thread.
Choosing Your Champion: AddAsync vs. Add
Here's a breakdown to help you decide:
Feature | AddAsync | Add |
---|---|---|
Execution | Asynchronous | Synchronous |
UI Responsiveness | Maintains responsiveness | Might block the UI thread |
Use Cases | User interactions, background processes | Background tasks, immediate data processing |
Performance (Network) | Potentially better for high latency networks | Might be slightly faster on local networks |
Error Handling | Requires proper asynchronous error handling | Standard synchronous error handling |
General Usage and Examples
- Adding an Entity (Asynchronous):
// Assuming you have an instance of your repository (`repository)`)
// and a new Product object (`product`)
Task addProductTask = repository.AddAsync<Product>(product);
// Await the task to ensure completion before proceeding (optional)
await addProductTask;
// You can continue with further operations after successful addition
Console.WriteLine($"Product '{product.Name}' added successfully.");
- Adding an Entity (Synchronous):
repository.Add<Product>(product);
// No need to await as the operation happens synchronously
Console.WriteLine($"Product '{product.Name}' added successfully.");
Modern Usage Considerations
- Asynchronous Programming Paradigm: In modern applications,
AddAsync
is generally preferred due to its responsiveness benefits. Asynchronous programming allows your application to remain interactive while data is being added. - Error Handling: Implement robust error handling mechanisms to gracefully handle potential exceptions during the addition process. Consider using try-catch blocks or asynchronous exception handling patterns (e.g.,
Task.WaitAll
with exception propagation). - Entity State Tracking: In some ORMs, calling
Add
might not automatically mark the entity as "added" for tracking purposes. Consult your ORM's documentation for configuration details regarding entity state management.
Advanced Usage Scenarios
- Adding Multiple Entities (Asynchronous):
// Assuming you have a list of Product objects (`products`)
List<Task> addProductTasks = new List<Task>();
foreach (var product in products)
{
addProductTasks.Add(repository.AddAsync<Product>(product));
}
// Wait for all tasks to complete in parallel (or use other techniques like Task.WhenAll)
await Task.WaitAll(addProductTasks.ToArray());
Console.WriteLine($"{addProductTasks.Count} products added successfully.");
- Adding Entities with Relationships (Eager Loading):
If your entity model involves relationships, you might need to consider eager loading related entities to avoid multiple database queries. Consult your ORM's documentation for specific syntax and configuration options.
- Adding Entities with Change Tracking (Optional):
In some ORMs, enabling change tracking allows for efficient updates using methods like UpdateAsync
or Update
. Refer to your ORM's documentation for configuration details.
Remember:
- Prioritize
AddAsync
for UI-centric applications to maintain responsiveness. - Choose
Add
for background tasks or scenarios where immediate data manipulation is critical. - Leverage asynchronous programming for a more modern and efficient approach.
- Implement proper error handling and carefully consider entity state tracking in your ORM.
- Explore advanced techniques like adding multiple entities, eager loading, and change tracking when necessary.
By understanding the nuances of AddAsync
and Add
, you can effectively manage entity creation within your modern applications, ensuring responsiveness, efficiency, and error resilience.