Question

I would like to bulk insert a collection content every minute to a sql server using bulk insert.

I m using a ConcurrentBag to store requests in the memory.

What s the best practice to do this? or How can this be done?

I understand that I have to use events, should i wrap the collection within another class and implement expiration?

How do i use events for this purpose?

Answer 1

I think the requirement is not general purpose enough and the code to achieve this is small, so personally I think it’s not necessary to create a separate class. At least if the containing class is not already overly long and complex. However this is more or less a matter of taste.

To achieve what you want, it should be enough to use the Timer class and on every timer tick enumerate the collection inserting the items in the database and removing them from the collection at the same time. GetEnumerator on ConcurrentBag works on a Snapshot of the data, so it’s safe to remove the items while enumerating.