Function MongoCollection.countDocuments

Returns the count of documents that match the query for a collection or view.


							
					ulong countDocuments(T)
					(
					

					  T filter,
					

					  CountOptions options = CountOptions.init
					

					);

The method wraps the $group aggregation stage with a $sum expression to perform the count.

Throws Exception if a DB communication error occurred.

Authors	Sönke Ludwig
Copyright	© 2012-2016 Sönke Ludwig
License	Subject to the terms of the MIT license, as written in the included LICENSE.txt file.

See Also