AX 2012 - Returning Positive Next continuous Number Sequence in X++ code

Following below code show how we can get continuous number from the number sequences in Microsoft dynamics ax 2012.

SL_PositionReqNum   positionReqNum;
SysLastValue nextNumSeq;

ttsBegin;
positionReqNum = NumberSeq::newGetNumFromId(NumberSeqReference::findReference(extendedTypeNum(SL_PositionReqNum)).NumberSequenceId).num();
ttsCommit;

return positionReqNum;