org.apache.iceberg.arrow.vectorized

Class VectorHolder

java.lang.Object

org.apache.iceberg.arrow.vectorized.VectorHolder

Direct Known Subclasses:

VectorHolder.ConstantVectorHolder, VectorHolder.PositionVectorHolder

public class VectorHolder
extends java.lang.Object

Container class for holding the Arrow vector storing a batch of values along with other state needed for reading values out of it.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	VectorHolder.ConstantVectorHolder<T> A Vector Holder which does not actually produce values, consumers of this class should use the constantValue to populate their ColumnVector implementation.
static class	VectorHolder.PositionVectorHolder

Constructor Summary

Constructors

Constructor and Description
VectorHolder(org.apache.parquet.column.ColumnDescriptor columnDescriptor, org.apache.arrow.vector.FieldVector vector, boolean isDictionaryEncoded, org.apache.parquet.column.Dictionary dictionary, NullabilityHolder holder, Type type)

Method Summary

Modifier and Type	Method and Description
static <T> VectorHolder	constantHolder(int numRows, T constantValue)
org.apache.parquet.column.ColumnDescriptor	descriptor()
org.apache.parquet.column.Dictionary	dictionary()
static VectorHolder	dummyHolder(int numRows)
Type	icebergType()
boolean	isDictionaryEncoded()
boolean	isDummy()
NullabilityHolder	nullabilityHolder()
int	numValues()
org.apache.arrow.vector.FieldVector	vector()

Methods inherited from class java.lang.Object

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

Constructor Detail

VectorHolder

public VectorHolder(org.apache.parquet.column.ColumnDescriptor columnDescriptor,
                    org.apache.arrow.vector.FieldVector vector,
                    boolean isDictionaryEncoded,
                    org.apache.parquet.column.Dictionary dictionary,
                    NullabilityHolder holder,
                    Type type)

Method Detail

descriptor

public org.apache.parquet.column.ColumnDescriptor descriptor()

vector

public org.apache.arrow.vector.FieldVector vector()

isDictionaryEncoded

public boolean isDictionaryEncoded()

dictionary

public org.apache.parquet.column.Dictionary dictionary()

nullabilityHolder

public NullabilityHolder nullabilityHolder()

icebergType

public Type icebergType()

numValues

public int numValues()

constantHolder

public static <T> VectorHolder constantHolder(int numRows,
                                              T constantValue)

dummyHolder

public static VectorHolder dummyHolder(int numRows)

isDummy

public boolean isDummy()