There are three workflows
The main spot for keep provisioning data is
this.getGrouperProvisioner().retrieveGrouperProvisioningData()
This has wrappers for groups, entities, and memberships
The list of wrappers has all the data from Grouper and the target.
Groups / entities / memberships are indexed by group id or sync id
this.getGrouperProvisioner().retrieveGrouperProvisioningDataIndex()