Package org.apache.drill.exec.physical.rowSet

Class HyperRowIndex

java.lang.Object

org.apache.drill.exec.physical.resultSet.model.ReaderIndex

org.apache.drill.exec.physical.rowSet.HyperRowIndex

All Implemented Interfaces:

ColumnReaderIndex

public class HyperRowIndex
extends ReaderIndex

Read-only row index into the hyper row set with batch and index values mapping via an SV4.

Field Summary

Fields inherited from class org.apache.drill.exec.physical.resultSet.model.ReaderIndex

position, rowCount

Constructor Summary

Constructors

Constructor	Description
HyperRowIndex(SelectionVector4 sv4)

Method Summary

Modifier and Type	Method	Description
int	hyperVectorIndex()	When used with a hyper-vector (SV4) based batch, returns the index of the current batch within the hyper-batch.
int	offset()	Vector offset to read.

Methods inherited from class org.apache.drill.exec.physical.resultSet.model.ReaderIndex

hasNext, logicalIndex, next, set, size

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

HyperRowIndex

public HyperRowIndex(SelectionVector4 sv4)

Method Details

offset

public int offset()

Description copied from interface: ColumnReaderIndex

Vector offset to read. For top-level vectors, the offset may be through an indirection (SV2 or SV4). For arrays, the offset is the absolute position, with the vector of the current array element.

Returns:

vector read index

hyperVectorIndex

public int hyperVectorIndex()

Description copied from interface: ColumnReaderIndex

When used with a hyper-vector (SV4) based batch, returns the index of the current batch within the hyper-batch. If this is a single batch, or a nested index, then always returns 0.

Returns:

batch index of the current row within the hyper-batch