com.browseengine.bobo.facets.impl
Class GeoFacetHandler

java.lang.Object
  com.browseengine.bobo.facets.FacetHandler<GeoFacetHandler.GeoFacetData>
      com.browseengine.bobo.facets.impl.GeoFacetHandler

public class GeoFacetHandler
extends FacetHandler<GeoFacetHandler.GeoFacetData>

Constructor for GeoFacetHandler

Nested Class Summary

static class

GeoFacetHandler.GeoFacetData

Nested classes/interfaces inherited from class com.browseengine.bobo.facets.FacetHandler

FacetHandler.FacetDataNone, FacetHandler.TermCountSize

Field Summary

Fields inherited from class com.browseengine.bobo.facets.FacetHandler

_name

Constructor Summary

GeoFacetHandler(String name, String latFieldName, String lonFieldName)

GeoFacetHandler(String name, String latFieldName, String lonFieldName, boolean miles)
Constructor for GeoFacetHandler

Method Summary

RandomAccessFilter	buildRandomAccessFilter(String value, Properties selectionProperty) Builds a random access filter.
DocComparatorSource	getDocComparatorSource() builds a comparator to determine how sorting is done
FacetCountCollectorSource	getFacetCountCollectorSource(BrowseSelection sel, FacetSpec fspec) Gets a FacetCountCollector
String[]	getFieldValues(BoboIndexReader reader, int id) Gets the field value
GeoFacetHandler.GeoFacetData	load(BoboIndexReader reader) Load information from an index reader, initialized by BoboIndexReader

Methods inherited from class com.browseengine.bobo.facets.FacetHandler

buildFilter, buildRandomAccessAndFilter, buildRandomAccessOrFilter, clone, getDependedFacetHandler, getDependsOn, getFacetCountCollectorSource, getFacetData, getFieldValue, getName, getRawFieldValues, getTermCountSize, load, loadFacetData, loadFacetData, merge, putDependedFacetHandler, setTermCountSize, setTermCountSize

Methods inherited from class java.lang.Object

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

Constructor Detail

GeoFacetHandler

public GeoFacetHandler(String name,
                       String latFieldName,
                       String lonFieldName)

GeoFacetHandler

public GeoFacetHandler(String name,
                       String latFieldName,
                       String lonFieldName,
                       boolean miles)

Constructor for GeoFacetHandler

Parameters:

name - name of the geo facet

latFieldName - name of the index field that stores the latitude value

lonFieldName - name of the index field that stores the longitude value

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

Method Detail

buildRandomAccessFilter

public RandomAccessFilter buildRandomAccessFilter(String value,
                                                  Properties selectionProperty)
                                           throws IOException

Builds a random access filter.

Specified by:

buildRandomAccessFilter in class FacetHandler<GeoFacetHandler.GeoFacetData>

Parameters:

value - Should be of the form: lat, lon: rad

selectionProperty -

Throws:

IOException

getDocComparatorSource

public DocComparatorSource getDocComparatorSource()

Description copied from class: FacetHandler

builds a comparator to determine how sorting is done

Specified by:

getDocComparatorSource in class FacetHandler<GeoFacetHandler.GeoFacetData>

Returns:

a sort comparator

getFacetCountCollectorSource

public FacetCountCollectorSource getFacetCountCollectorSource(BrowseSelection sel,
                                                              FacetSpec fspec)

Description copied from class: FacetHandler

Gets a FacetCountCollector

Specified by:

getFacetCountCollectorSource in class FacetHandler<GeoFacetHandler.GeoFacetData>

Parameters:

sel - selection

fspec - facetSpec

Returns:

a FacetCountCollector

getFieldValues

public String[] getFieldValues(BoboIndexReader reader,
                               int id)

Description copied from class: FacetHandler

Gets the field value

Specified by:

getFieldValues in class FacetHandler<GeoFacetHandler.GeoFacetData>

Parameters:

reader - index reader

id - doc

Returns:

array of field values

See Also:

FacetHandler.getFieldValue(BoboIndexReader,int)

load

public GeoFacetHandler.GeoFacetData load(BoboIndexReader reader)
                                  throws IOException

Description copied from class: FacetHandler

Load information from an index reader, initialized by BoboIndexReader

Specified by:

load in class FacetHandler<GeoFacetHandler.GeoFacetData>

Parameters:

reader - reader

Throws:

IOException