Implementing retry logic for deadlock exceptions

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How about something like this:

public T DeadlockRetryHelper<T>(Func<T> repositoryMethod, int maxRetries)
{
  int retryCount = 0;

  while (retryCount < maxRetries)
  {
    try
    {
      return repositoryMethod();
    }
    catch (SqlException e) // This example is for SQL Server, change the exception type/logic if you're using another DBMS
    {
      if (e.Number == 1205)  // SQL Server error code for deadlock
      {
        retryCount++;
      }
      else
      {
        throw;  // Not a deadlock so throw the exception
      }
      // Add some code to do whatever you want with the exception once you've exceeded the max. retries
    }
  }
}

With the above code, your retry logic is all in this method and you can just pass your repository method in as a delegate.

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