objective c - Core Data: Relationship without destination entity? -

is possible create relationship without specifying specific custom nsmanagedobject destination entity?

e.g., create nsmanagedobject subclass called syncinfo contain attributes regarding syncing , sync options parse or other third party cloud-based database. syncinfo possess relationship called managedobject point towards nsmanagedobject wish have synced parse. idea fetch syncinfo objects core data rather data objects when determining objects need synced parse. relationship between syncinfo object , nsmanagedobject 1:1 always.

this first time attempting sync data on iphone app third party server apologize if best attempt @ architecturing incorrect. teach myself followed ray wenderlich tutorial , got working , attempting build more robust version app.

just create parent entity has syncinfo relationship , base other entities on one.

look @ "entity inheritance" here.