com.browseengine.bobo.facets.filter
Class GeoFacetFilter

java.lang.Object
  org.apache.lucene.search.Filter
      com.browseengine.bobo.facets.filter.RandomAccessFilter
          com.browseengine.bobo.facets.filter.GeoFacetFilter

All Implemented Interfaces:

Serializable

public class GeoFacetFilter
extends RandomAccessFilter

Author:

nnarkhed

See Also:

Serialized Form

Constructor Summary

GeoFacetFilter(FacetHandler<GeoFacetHandler.GeoFacetData> facetHandler, float lat, float lon, float radius, boolean miles)

Method Summary

RandomAccessDocIdSet	getRandomAccessDocIdSet(BoboIndexReader reader)
static boolean	inCircle(float docX, float docY, float docZ, float targetX, float targetY, float targetZ, float radCosine)

Methods inherited from class com.browseengine.bobo.facets.filter.RandomAccessFilter

getDocIdSet, getFacetSelectivity

Methods inherited from class java.lang.Object

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

Constructor Detail

GeoFacetFilter

public GeoFacetFilter(FacetHandler<GeoFacetHandler.GeoFacetData> facetHandler,
                      float lat,
                      float lon,
                      float radius,
                      boolean miles)

Parameters:

facetHandler - The Geo Facet Handler for this instance

lat - latitude value of the user's point of interest

lon - longitude value of the user's point of interest

radius - Radius from the point of interest

miles - variable to specify if the geo distance calculations are in miles. False indicates distance calculation is in kilometers

Method Detail

getRandomAccessDocIdSet

public RandomAccessDocIdSet getRandomAccessDocIdSet(BoboIndexReader reader)
                                             throws IOException

Specified by:

getRandomAccessDocIdSet in class RandomAccessFilter

Throws:

IOException

inCircle

public static boolean inCircle(float docX,
                               float docY,
                               float docZ,
                               float targetX,
                               float targetY,
                               float targetZ,
                               float radCosine)