set context node value in dynamic component usage

Hi,

I have used component through dynamic method as described in [Dynamically Creating Component Usages|http://help.sap.com/saphelp_nw70/helpdata/en/bc/191a427ff6db2ce10000000a1550b0/frameset.htm] .

But I don't know how to set context node and attributes value for dynamically used component.

I have created interface context node in the component which has been used dynamically in other component.

any idea or code snippet will helpful.

Thanks,

-Haresh