org.apache.spark.sql.execution

RowIterator

abstract class RowIterator extends AnyRef

An internal iterator interface which presents a more restrictive API than scala.collection.Iterator.

One major departure from the Scala iterator API is the fusing of the hasNext() and next() calls: Scala's iterator allows users to call hasNext() without immediately advancing the iterator to consume the next row, whereas RowIterator combines these calls into a single advanceNext() method.

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Instance Constructors

  1. new RowIterator()

Abstract Value Members

  1. abstract def advanceNext(): Boolean

    Advance this iterator by a single row.

    Advance this iterator by a single row. Returns false if this iterator has no more rows and true otherwise. If this returns true, then the new row can be retrieved by calling getRow.

  2. abstract def getRow: InternalRow

    Retrieve the row from this iterator.

    Retrieve the row from this iterator. This method is idempotent. It is illegal to call this method after advanceNext() has returned false.

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  1. final def !=(arg0: AnyRef): Boolean

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  2. final def !=(arg0: Any): Boolean

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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  5. final def ==(arg0: Any): Boolean

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  6. final def asInstanceOf[T0]: T0

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  7. def clone(): AnyRef

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  8. final def eq(arg0: AnyRef): Boolean

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  9. def equals(arg0: Any): Boolean

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  10. def finalize(): Unit

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  11. final def getClass(): Class[_]

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  12. def hashCode(): Int

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  13. final def isInstanceOf[T0]: Boolean

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  14. final def ne(arg0: AnyRef): Boolean

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  15. final def notify(): Unit

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  16. final def notifyAll(): Unit

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  17. final def synchronized[T0](arg0: ⇒ T0): T0

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  18. def toScala: Iterator[InternalRow]

    Convert this RowIterator into a scala.collection.Iterator.

  19. def toString(): String

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  20. final def wait(): Unit

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  21. final def wait(arg0: Long, arg1: Int): Unit

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  22. final def wait(arg0: Long): Unit

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