org.apache.drill.exec.physical.impl.scan.project

Class ResolvedTuple.ResolvedMapArray

java.lang.Object

org.apache.drill.exec.physical.impl.scan.project.ResolvedTuple

org.apache.drill.exec.physical.impl.scan.project.ResolvedTuple.ResolvedMap

org.apache.drill.exec.physical.impl.scan.project.ResolvedTuple.ResolvedMapArray

All Implemented Interfaces:

VectorSource

Enclosing class:

ResolvedTuple

public static class ResolvedTuple.ResolvedMapArray
extends ResolvedTuple.ResolvedMap

Represents a map tuple (not the map column, rather the value of the map column.) When projecting, we create a new repeated map vector, but share the offsets vector from input to output. The size of the offset vector reveals the number of elements in the "inner" array, which is the number of null values to create if null columns are added.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.exec.physical.impl.scan.project.ResolvedTuple

ResolvedTuple.ResolvedDict, ResolvedTuple.ResolvedDictArray, ResolvedTuple.ResolvedMap, ResolvedTuple.ResolvedMapArray, ResolvedTuple.ResolvedRow, ResolvedTuple.ResolvedSingleDict, ResolvedTuple.ResolvedSingleMap

Field Summary

Fields inherited from class org.apache.drill.exec.physical.impl.scan.project.ResolvedTuple.ResolvedMap

inputMap, outputMap, parentColumn

Fields inherited from class org.apache.drill.exec.physical.impl.scan.project.ResolvedTuple

binding, children, members, nullBuilder

Constructor Summary

Constructors

Constructor and Description
ResolvedMapArray(ResolvedMapColumn parentColumn)

Method Summary

Modifier and Type	Method and Description
protected AbstractMapVector	createMap(AbstractMapVector inputMap, MaterializedField schema, BufferAllocator allocator)
int	innerCardinality(int outerCardinality)
void	setRowCount(int rowCount)

Methods inherited from class org.apache.drill.exec.physical.impl.scan.project.ResolvedTuple.ResolvedMap

addVector, allocator, buildMap, name, vector

Methods inherited from class org.apache.drill.exec.physical.impl.scan.project.ResolvedTuple

add, addChild, buildColumns, buildNulls, cascadeRowCount, close, columns, isSimpleProjection, loadNulls, nullBuilder, removeChild, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

ResolvedMapArray

public ResolvedMapArray(ResolvedMapColumn parentColumn)

Method Detail

createMap

protected AbstractMapVector createMap(AbstractMapVector inputMap,
                                      MaterializedField schema,
                                      BufferAllocator allocator)

Specified by:

createMap in class ResolvedTuple.ResolvedMap

innerCardinality

public int innerCardinality(int outerCardinality)

Specified by:

innerCardinality in class ResolvedTuple

setRowCount

public void setRowCount(int rowCount)

Specified by:

setRowCount in class ResolvedTuple