| Interface | Description | 
|---|---|
| RDDConverter<IN,OUT,T extends PhysicalOperator> | Given an RDD and a PhysicalOperater, and implementation of this class can
 convert the RDD to another RDD. | 
| Class | Description | 
|---|---|
| BroadcastConverter | |
| CollectedGroupConverter | |
| CounterConverter | |
| DistinctConverter | |
| FilterConverter | Converter that converts an RDD to a filtered RRD using POFilter | 
| ForEachConverter | Convert that is able to convert an RRD to another RRD using a POForEach | 
| FRJoinConverter | |
| GlobalRearrangeConverter | |
| IndexedKey | IndexedKey records the index and key info. | 
| JoinGroupSparkConverter | |
| LimitConverter | |
| LoadConverter | Converter that loads data via POLoad and converts it to RRD<Tuple>. | 
| LocalRearrangeConverter | |
| MergeCogroupConverter | |
| MergeJoinConverter | |
| PackageConverter | |
| PoissonSampleConverter | |
| RankConverter | |
| ReduceByConverter | |
| SecondaryKeySortUtil | Provide utility functions which is used by ReducedByConverter and JoinGroupSparkConverter. | 
| SkewedJoinConverter | |
| SortConverter | |
| SparkSampleSortConverter | |
| SplitConverter | |
| StoreConverter | Converter that takes a POStore and stores it's content. | 
| StreamConverter | |
| UnionConverter | 
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