/**************************************************************************************
* Copyright (C) 2008 EsperTech, Inc. All rights reserved. *
* http://esper.codehaus.org *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
**************************************************************************************/
package com.espertech.esper.filter;
import com.espertech.esper.util.MetaDefItem;
import java.util.Comparator;
import java.io.Serializable;
/**
* Comparator for DoubleRange values.
* <p>Sorts double ranges as this: sort by min asc, max asc.
* I.e. same minimum value sorts maximum value ascending.
*/
public final class DoubleRangeComparator implements Comparator<DoubleRange>, MetaDefItem, Serializable
{
private static final long serialVersionUID = 5806978023193814183L;
public final int compare(DoubleRange r1, DoubleRange r2)
{
double minOne = r1.getMin();
double minTwo = r2.getMin();
double maxOne = r1.getMax();
double maxTwo = r2.getMax();
if (minOne < minTwo)
{
return -1;
}
if (minOne > minTwo)
{
return 1;
}
if (maxOne < maxTwo)
{
return -1;
}
if (maxOne > maxTwo)
{
return 1;
}
return 0;
}
}