Swaption pricing strata 0.9

[oyvfos]

I had better first looked at this previous answer

Curve values in Strata

Hi OG team, First of all thanks for great deal of work put into development of your tools while keeping it open source. I’d like to obtain values from calibrated yield and discount curves. Could you provide me with some hints or quick code example on how to get forward rates and discount factors? I looked into your examples (like CalibrationCheckExample), but it’s not clear to me what is the preffered interface to use as a curve provider. Cheers, Emil

which explains this.