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SnapshotIterator is an abstraction of iterators over indexed AddFile actions in a Delta log for DeltaSourceSnapshots.

Iterator of Indexed AddFiles

iterator(): Iterator[IndexedFile]

iterator returns an Iterator (Scala) of IndexedFiles (AddFile actions in a Delta log with extra metadata) of filterFileList.

iterator is used when:

Closing Iterator (Cleaning Up Internal Resources)

  unpersistSnapshot: Boolean): Unit

close is a no-op (and leaves proper operation to implementations).

close is used when: