org.apache.hadoop.hive.ql.optimizer.physical

Class BucketingSortingCtx.SortCol

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.physical.BucketingSortingCtx.SortCol

All Implemented Interfaces:

java.io.Serializable, BucketingSortingCtx.BucketSortCol

Enclosing class:

BucketingSortingCtx

public static final class BucketingSortingCtx.SortCol
extends java.lang.Object
implements BucketingSortingCtx.BucketSortCol, java.io.Serializable

SortCol. An implementation of BucketSortCol which contains known aliases/indexes of equivalent columns which data is determined to be sorted on. Unlike aliases, and indexes the sort order is known to be constant for all equivalent columns.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SortCol(char sortOrder)
SortCol(java.lang.String name, int index, char sortOrder)

Method Summary

Modifier and Type	Method and Description
void	addAlias(java.lang.String name, java.lang.Integer index)
java.util.List<java.lang.Integer>	getIndexes()
java.util.List<java.lang.String>	getNames()
char	getSortOrder()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

SortCol

public SortCol(java.lang.String name,
               int index,
               char sortOrder)

SortCol

public SortCol(char sortOrder)

Method Detail

getNames

public java.util.List<java.lang.String> getNames()

Specified by:

getNames in interface BucketingSortingCtx.BucketSortCol

getIndexes

public java.util.List<java.lang.Integer> getIndexes()

Specified by:

getIndexes in interface BucketingSortingCtx.BucketSortCol

addAlias

public void addAlias(java.lang.String name,
                     java.lang.Integer index)

Specified by:

addAlias in interface BucketingSortingCtx.BucketSortCol

getSortOrder

public char getSortOrder()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object