ABAP code for Tarjan's algorithm or use Class CL_FDT_OPERATION_SEQUENCER?

Hi,

We have a requirement where we need to model the supply chain network as a directed graph and find the cycle numbers.

Nodes of the graph - ProductLocation combinations or Resources

Edges - Transportation Lanes/PDS

This scenario is compared to Tarjan's algorithm - http://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm

and I found a SAP class CL_FDT_OPERATION_SEQUENCER which implements this algorithm.

However, I am not understanding what is the input data format that I need to pass to this class methods?

Can I use this class at all for my requirement or I need to write the code on my own.

Any inputs will be appreciated and awarded accordingly.

Thanks