org.apache.drill.exec.vector.complex

Class EmptyValuePopulator

java.lang.Object

org.apache.drill.exec.vector.complex.EmptyValuePopulator

public class EmptyValuePopulator
extends Object

Tracks and populate empty values in repeated value vectors.

Constructor Summary

Constructors

Constructor and Description
EmptyValuePopulator(org.apache.drill.exec.vector.UInt4Vector offsets)

Method Summary

Modifier and Type	Method and Description
void	populate(int valueCount) Marks all values since the last set as empty.

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyValuePopulator

public EmptyValuePopulator(org.apache.drill.exec.vector.UInt4Vector offsets)

Method Detail

populate

public void populate(int valueCount)

Marks all values since the last set as empty. The last set value is obtained from underlying offsets vector.

Parameters:

valueCount - the last index (inclusive) in the offsets vector until which empty population takes place. Given in record (not offset) units

Throws:

IndexOutOfBoundsException - if lastIndex is negative or greater than offsets capacity.