com.lucidera.lcs
Class LcsIndexOptimizer.RowCountComparator

java.lang.Object
  com.lucidera.lcs.LcsIndexOptimizer.RowCountComparator

All Implemented Interfaces:

Comparator<RelNode>

Enclosing class:

LcsIndexOptimizer

private static class LcsIndexOptimizer.RowCountComparator
extends Object
implements Comparator<RelNode>

RowCountComparator is used to sort RelNodes based on their rowcounts, provided the counts are known. Unknown rowcounts are always sorted last.

Constructor Summary

private

LcsIndexOptimizer.RowCountComparator()

Method Summary

int	compare(RelNode r1, RelNode r2)

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

equals

Constructor Detail

LcsIndexOptimizer.RowCountComparator

private LcsIndexOptimizer.RowCountComparator()

Method Detail

compare

public int compare(RelNode r1,
                   RelNode r2)

Specified by:

compare in interface Comparator<RelNode>