// $Id: SelectGeoRegion.java 48 2006-07-12 16:15:40Z caron $
/*
* Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
*
* Access and use of this software shall impose the following obligations
* and understandings on the user. The user is granted the right, without
* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
* documentation for any purpose whatsoever, provided that this entire
* notice appears in all copies of the software, derivative works and
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* software or in any product that includes this software. The names UCAR
* and/or Unidata, however, may not be used in any advertising or publicity
* to endorse or promote any products or commercial entity unless specific
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*
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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*/
package thredds.catalog.query;
/**
* Implementation of a DQC select geo region.
*
* @author john caron
*/
public class SelectGeoRegion extends Selector {
private Location lowerLeft, upperRight;
/**
* Construct from fields in XML catalog.
* @see Selector
*/
public SelectGeoRegion( Location lowerLeft, Location upperRight) {
super();
this.lowerLeft = lowerLeft;
this.upperRight = upperRight;
}
public Location getLowerLeft() { return lowerLeft; }
public Location getUpperRight() { return upperRight; }
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof SelectGeoRegion)) return false;
return o.hashCode() == this.hashCode();
}
/** Override Object.hashCode() to implement equals. */
public int hashCode() {
if (hashCode == 0) {
int result = 17;
if (getTitle() != null)
result = 37*result + getTitle().hashCode();
if (getId() != null)
result = 37*result + getId().hashCode();
if (getTemplate() != null)
result = 37*result + getTemplate().hashCode();
if (isRequired()) result++;
if (isMultiple()) result++;
if (getLowerLeft() != null)
result = 37*result + getLowerLeft().hashCode();
if (getUpperRight() != null)
result = 37*result + getUpperRight().hashCode();
hashCode = result;
}
return hashCode;
}
private volatile int hashCode = 0; // Bloch, item 8
}