com.yahoo.bard.webservice.table.resolver

Class DimensionCardinalityComparator

java.lang.Object

com.yahoo.bard.webservice.table.resolver.DimensionCardinalityComparator

All Implemented Interfaces:

Comparator<PhysicalTable>

public class DimensionCardinalityComparator
extends Object
implements Comparator<PhysicalTable>

Comparator to prefer fewer dimensions in physical tables (for the purpose of preferring fewer rows).

Constructor Summary

Constructors

Constructor and Description
DimensionCardinalityComparator()

Method Summary

Modifier and Type	Method and Description
int	compare(PhysicalTable table1, PhysicalTable table2) Compare two Physical Tables based on their number of dimensions.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

DimensionCardinalityComparator

public DimensionCardinalityComparator()

Method Detail

compare

public int compare(PhysicalTable table1,
                   PhysicalTable table2)

Compare two Physical Tables based on their number of dimensions.

Specified by:

compare in interface Comparator<PhysicalTable>

Parameters:

table1 - The first table

table2 - The second table

Returns:

negative if table1 has fewer dimensions than table2