Primavera p6 integration api connect Rate to Resource!

Hi!

First question in here!

I have a resource which im going to add two resorucerates to.

But I'm confused about when I have acctually made a connection. And when to use a certian method in the Resoruce class,

Here's my code.

      Resource res = new Resource(_sessionHelper.getSession());

      res.setId(importResourcesData.getResourceID());

      res.setIsActive(true);

      res.setUseTimesheets(true);

      res.setUserObjectId(importResourcesData.getUser());

      res.setName(importResourcesData.getFirstName() + " " + importResourcesData.getLastName());

      res.setEmailAddress(importResourcesData.getEmailAdress());

       ObjectId resObjId =res.create();

      Resource created, that much I understand but now for two scenarios.

    

Scenario #1

      ResourceRate rate = new ResourceRate(_sessionHelper.getSession());

      rate.setMaxUnitsPerTime(UnitsPerTime.ZERO_UNITSPERTIME);

      Calendar cal = Calendar.getInstance();