next() public method Moves the internal pointer to the

valid() public method Returns whether there is a valid

rewind() public method Resets the iterator to the initial

$db public property The MongoDB connection to be used when performing

$batchSize public property The number of rows to be returned in

current() public method Returns the current dataset.

$query public property The query object associated with this batch

key() public method Returns the index of the current dataset

$each public property Whether to return a single row during each

fetchData() protected method Fetches the next batch of