org.apache.calcite.adapter.clone

Class ArrayTable.ObjectDictionary

java.lang.Object

org.apache.calcite.adapter.clone.ArrayTable.ObjectDictionary

All Implemented Interfaces:

ArrayTable.Representation

Enclosing class:

ArrayTable

public static class ArrayTable.ObjectDictionary
extends Object
implements ArrayTable.Representation

Representation that stores the values of a column as a dictionary of objects.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	ordinal
(package private) ArrayTable.Representation	representation

Constructor Summary

Constructors

Constructor and Description
ObjectDictionary(int ordinal, ArrayTable.Representation representation)

Method Summary

Modifier and Type	Method and Description
Object	freeze(ColumnLoader.ValueSet valueSet, int[] sources) Converts a value set into a compact representation.
int	getInt(Object dataSet, int ordinal)
Object	getObject(Object dataSet, int ordinal)
ArrayTable.RepresentationType	getType() Returns the representation type.
Object	permute(Object dataSet, int[] sources) Creates a data set that is the same as a given data set but re-ordered.
int	size(Object dataSet) Returns the number of elements in a data set.
String	toString()
String	toString(Object dataSet) Converts a data set to a string.

Methods inherited from class java.lang.Object

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

Field Detail

ordinal

final int ordinal

representation

final ArrayTable.Representation representation

Constructor Detail

ObjectDictionary

ObjectDictionary(int ordinal,
                 ArrayTable.Representation representation)

Method Detail

toString

public String toString()

Overrides:

toString in class Object

getType

public ArrayTable.RepresentationType getType()

Description copied from interface: ArrayTable.Representation

Returns the representation type.

Specified by:

getType in interface ArrayTable.Representation

freeze

public Object freeze(ColumnLoader.ValueSet valueSet,
                     int[] sources)

Description copied from interface: ArrayTable.Representation

Converts a value set into a compact representation. If sources is not null, permutes.

Specified by:

freeze in interface ArrayTable.Representation

permute

public Object permute(Object dataSet,
                      int[] sources)

Description copied from interface: ArrayTable.Representation

Creates a data set that is the same as a given data set but re-ordered.

Specified by:

permute in interface ArrayTable.Representation

getObject

public Object getObject(Object dataSet,
                        int ordinal)

Specified by:

getObject in interface ArrayTable.Representation

getInt

public int getInt(Object dataSet,
                  int ordinal)

Specified by:

getInt in interface ArrayTable.Representation

size

public int size(Object dataSet)

Description copied from interface: ArrayTable.Representation

Returns the number of elements in a data set. (Some representations return the capacity, which may be slightly larger than the actual size.)

Specified by:

size in interface ArrayTable.Representation

toString

public String toString(Object dataSet)

Description copied from interface: ArrayTable.Representation

Converts a data set to a string.

Specified by:

toString in interface ArrayTable.Representation