class OneToOneDependency[T] extends NarrowDependency[T]
:: DeveloperApi :: Represents a one-to-one dependency between partitions of the parent and child RDDs.
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def
getParents(partitionId: Int): List[Int]
Get the parent partitions for a child partition.
Get the parent partitions for a child partition.
- partitionId
a partition of the child RDD
- returns
the partitions of the parent RDD that the child partition depends upon
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rdd: RDD[T]
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