Package org.apache.solr.search

Class SpatialFilterQParserPlugin

java.lang.Object

org.apache.solr.search.QParserPlugin

org.apache.solr.search.SpatialFilterQParserPlugin

All Implemented Interfaces:

NamedListInitializedPlugin

Direct Known Subclasses:

SpatialBoxQParserPlugin

public class SpatialFilterQParserPlugin
extends QParserPlugin

Creates a spatial Filter based on the type of spatial point used.

The field must implement SpatialQueryable

All units are in Kilometers

Syntax:

{!geofilt sfield=<location_field> pt=<lat,lon> d=<distance>}

Parameters:

• sfield - The field to filter on. Required.
• pt - The point to use as a reference. Must match the dimension of the field. Required.
• d - The distance in km. Required.

The distance measure used currently depends on the FieldType. LatLonPointSpatialField defaults to using haversine, PointType defaults to Euclidean (2-norm).

Examples:

fq={!geofilt sfield=store pt=10.312,-20.556 d=3.5}

fq={!geofilt sfield=store}&pt=10.312,-20&d=3.5

fq={!geofilt}&sfield=store&pt=10.312,-20&d=3.5

Note: The geofilt for LatLonPointSpatialField is capable of also producing scores equal to the computed distance from the point to the field, making it useful as a component of the main query or a boosting query.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	NAME

Fields inherited from class org.apache.solr.search.QParserPlugin

DEFAULT_QTYPE, standardPlugins

Constructor Summary

Constructors

Constructor	Description
SpatialFilterQParserPlugin()

Method Summary

Modifier and Type	Method	Description
QParser	createParser(String qstr, org.apache.solr.common.params.SolrParams localParams, org.apache.solr.common.params.SolrParams params, SolrQueryRequest req)	Creates the QParser.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.solr.util.plugin.NamedListInitializedPlugin

init

Field Details

NAME

public static final String NAME

See Also:

• Constant Field Values

Constructor Details

SpatialFilterQParserPlugin

public SpatialFilterQParserPlugin()

Method Details

createParser

public QParser createParser(String qstr,
 org.apache.solr.common.params.SolrParams localParams,
 org.apache.solr.common.params.SolrParams params,
 SolrQueryRequest req)

Description copied from class: QParserPlugin

Creates the QParser.

Specified by:

createParser in class QParserPlugin

See Also:

• QParser(String, SolrParams, SolrParams, SolrQueryRequest)