In order for re-fetch mechanism to work with sinks three things needs to be indicated:
The fact that it should be refetched (SinkBase::$cronRefetch).
When it should be refetched (Also with SinkBase::$cronRefetch).
How far back or what chunks to refetch. This is provided by the method SinkBase::refetchIdRange() and must return an array with two chunk IDs to indicate its range.
In order for re-fetch mechanism to work with sinks three things needs to be indicated:
SinkBase::$cronRefetch
).SinkBase::$cronRefetch
).SinkBase::refetchIdRange()
and must return an array with two chunk IDs to indicate its range.