Sync adapter definition

Question

Although I have implemented sync adapters and I can describe what a sync adapter is, I wanted to find the definition of it. I did not find it.

Here I found a description that is clear but it is not a definition.

Is there, somewhere, a formal definition of an Android SyncAdapter? For example is it strictly necessary to extend AbstractThreadedSyncAdapter? It does not look like that to me but that page seems to assume it.

Best regards

Answer 1

The only definition I have found in the Android documentation is something like: "sync adapters" [components] to connect to any backend"