org.apache.drill.exec.vector.accessor.reader

Class NullStateReaders.NullableIsSetVectorStateReader

java.lang.Object

org.apache.drill.exec.vector.accessor.reader.NullStateReaders.NullableIsSetVectorStateReader

All Implemented Interfaces:

NullStateReader

Enclosing class:

NullStateReaders

protected static class NullStateReaders.NullableIsSetVectorStateReader
extends Object
implements NullStateReader

Holder for the NullableVector wrapper around a bits vector and a data vector. Manages the bits vector to extract the nullability value.

This class allows the same reader to handle both the required and nullable cases; the only difference is how nulls are handled.

Constructor Summary

Constructors

Constructor and Description
NullableIsSetVectorStateReader(VectorAccessor nullableAccessor)

Method Summary

Modifier and Type	Method and Description
void	bindBuffer()
void	bindIndex(ColumnReaderIndex rowIndex)
boolean	isNull()

Methods inherited from class java.lang.Object

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

Constructor Detail

NullableIsSetVectorStateReader

public NullableIsSetVectorStateReader(VectorAccessor nullableAccessor)

Method Detail

bindIndex

public void bindIndex(ColumnReaderIndex rowIndex)

Specified by:

bindIndex in interface NullStateReader

isNull

public boolean isNull()

Specified by:

isNull in interface NullStateReader

bindBuffer

public void bindBuffer()

Specified by:

bindBuffer in interface NullStateReader