IPC UserExits in Java

Hello,

We have to implement some formulas in Java on the IPC.We are new developing on the IPC.

We think we might inplement this formulas on the "overwriteConditionValue" method.The method has 4 parameters wich are passed:

PricingItemUserExit prItem,

ILastPrice lastPrice,

IPricingConditionUserExit prCondition,

int valueFormNo

Do anyone know wich are this objects for?

could anyone tell us the most important methods of each of the objects to implement our formulas?

we are a little bit lost...we would appreciate some imformation to start..

Thank you!