| Name | Type | Package | Detail |
| CompletionIterator | Class | spark.util | Detail |
| GapSamplingIterator | Class | util.random | Detail |
| GapSamplingReplacementIterator | Class | util.random | Detail |
| InterruptibleIterator | Class | apache.spark | Detail |
| IteratorBlock | Class | streaming.receiver | Detail |
| IteratorData | Class | streaming.receiver | Detail |
| IteratorValues | Class | spark.storage | Detail |
| JavaIterableWrapperSerializer | Class | spark.serializer | Detail |
| NextIterator | Class | spark.util | Detail |
| ShuffleBlockFetcherIterator | Class | spark.storage | Detail |
