Package org.apache.lucene.sandbox.document

Class LatLonBoundingBox

java.lang.Object

org.apache.lucene.document.Field

org.apache.lucene.sandbox.document.LatLonBoundingBox

All Implemented Interfaces:

IndexableField

public class LatLonBoundingBox
extends Field

An indexed 2-Dimension Bounding Box field for the Geospatial Lat/Lon Coordinate system

This field indexes 2-dimension Latitude, Longitude based Geospatial Bounding Boxes. The bounding boxes are defined as minLat, minLon, maxLat, maxLon where min/max lat,lon pairs using double floating point precision.

Multiple values for the same field in one document is supported.

This field defines the following static factory methods for common search operations over double ranges:

• newIntersectsQuery() matches bounding boxes that intersect the defined search bounding box.
• newWithinQuery() matches bounding boxes that are within the defined search bounding box.
• newContainsQuery() matches bounding boxes that contain the defined search bounding box.
• newCrosses() matches bounding boxes that cross the defined search bounding box.

The following Field limitations and restrictions apply:

• Dateline wrapping is not supported.
• Due to an encoding limitation Eastern and Western Hemisphere Bounding Boxes that share the dateline are not supported.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.document.Field

Field.Store

Field Summary

Fields

Modifier and Type	Field	Description
static int	BYTES	uses same encoding as LatLonPoint so numBytes is the same

Fields inherited from class org.apache.lucene.document.Field

fieldsData, name, tokenStream, type

Constructor Summary

Constructors

Constructor	Description
LatLonBoundingBox(String name, double minLat, double minLon, double maxLat, double maxLon)	Create a new 2D GeoBoundingBoxField representing a 2 dimensional geospatial bounding box

Method Summary

Modifier and Type	Method	Description
static Query	newContainsQuery(String field, double minLat, double minLon, double maxLat, double maxLon)	Create a new 2d query that finds all indexed 2d GeoBoundingBoxField values that contain the defined 2d bounding box
static Query	newCrossesQuery(String field, double minLat, double minLon, double maxLat, double maxLon)	Create a new 2d query that finds all indexed 2d GeoBoundingBoxField values that cross the defined 3d bounding box
static Query	newIntersectsQuery(String field, double minLat, double minLon, double maxLat, double maxLon)	Create a new 2d query that finds all indexed 2d GeoBoundingBoxField values that intersect the defined 3d bounding ranges
static Query	newWithinQuery(String field, double minLat, double minLon, double maxLat, double maxLon)	Create a new 2d query that finds all indexed 2d GeoBoundingBoxField values that are within the defined 2d bounding box
void	setRangeValues(double minLat, double minLon, double maxLat, double maxLon)	Changes the values of the field
String	toString()

Methods inherited from class org.apache.lucene.document.Field

binaryValue, fieldType, getCharSequenceValue, name, numericValue, readerValue, setBytesValue, setBytesValue, setByteValue, setDoubleValue, setFloatValue, setIntValue, setLongValue, setReaderValue, setShortValue, setStringValue, setTokenStream, stringValue, tokenStream, tokenStreamValue

Methods inherited from class java.lang.Object

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

Field Detail

BYTES

public static final int BYTES

uses same encoding as LatLonPoint so numBytes is the same

See Also:

Constant Field Values

Constructor Detail

LatLonBoundingBox

public LatLonBoundingBox(String name,
                         double minLat,
                         double minLon,
                         double maxLat,
                         double maxLon)

Create a new 2D GeoBoundingBoxField representing a 2 dimensional geospatial bounding box

Parameters:

name - field name. must not be null

minLat - minimum latitude value (in degrees); valid in [-90.0 : 90.0]

minLon - minimum longitude value (in degrees); valid in [-180.0 : 180.0]

maxLat - maximum latitude value (in degrees); valid in [minLat : 90.0]

maxLon - maximum longitude value (in degrees); valid in [minLon : 180.0]

Method Detail

setRangeValues

public void setRangeValues(double minLat,
                           double minLon,
                           double maxLat,
                           double maxLon)

Changes the values of the field

Parameters:

minLat - minimum latitude value (in degrees); valid in [-90.0 : 90.0]

minLon - minimum longitude value (in degrees); valid in [-180.0 : 180.0]

maxLat - maximum latitude value (in degrees); valid in [minLat : 90.0]

maxLon - maximum longitude value (in degrees); valid in [minLon : 180.0]

Throws:

IllegalArgumentException - if min or max is invalid

newIntersectsQuery

public static Query newIntersectsQuery(String field,
                                       double minLat,
                                       double minLon,
                                       double maxLat,
                                       double maxLon)

Create a new 2d query that finds all indexed 2d GeoBoundingBoxField values that intersect the defined 3d bounding ranges

Parameters:

field - field name. must not be null

minLat - minimum latitude value (in degrees); valid in [-90.0 : 90.0]

minLon - minimum longitude value (in degrees); valid in [-180.0 : 180.0]

maxLat - maximum latitude value (in degrees); valid in [minLat : 90.0]

maxLon - maximum longitude value (in degrees); valid in [minLon : 180.0]

Returns:

query for matching intersecting 2d bounding boxes

newWithinQuery

public static Query newWithinQuery(String field,
                                   double minLat,
                                   double minLon,
                                   double maxLat,
                                   double maxLon)

Create a new 2d query that finds all indexed 2d GeoBoundingBoxField values that are within the defined 2d bounding box

Parameters:

field - field name. must not be null

minLat - minimum latitude value (in degrees); valid in [-90.0 : 90.0]

minLon - minimum longitude value (in degrees); valid in [-180.0 : 180.0]

maxLat - maximum latitude value (in degrees); valid in [minLat : 90.0]

maxLon - maximum longitude value (in degrees); valid in [minLon : 180.0]

Returns:

query for matching 3d bounding boxes that are within the defined bounding box

newContainsQuery

public static Query newContainsQuery(String field,
                                     double minLat,
                                     double minLon,
                                     double maxLat,
                                     double maxLon)

Create a new 2d query that finds all indexed 2d GeoBoundingBoxField values that contain the defined 2d bounding box

Parameters:

field - field name. must not be null

minLat - minimum latitude value (in degrees); valid in [-90.0 : 90.0]

minLon - minimum longitude value (in degrees); valid in [-180.0 : 180.0]

maxLat - maximum latitude value (in degrees); valid in [minLat : 90.0]

maxLon - maximum longitude value (in degrees); valid in [minLon : 180.0]

Returns:

query for matching 2d bounding boxes that contain the defined bounding box

newCrossesQuery

public static Query newCrossesQuery(String field,
                                    double minLat,
                                    double minLon,
                                    double maxLat,
                                    double maxLon)

Create a new 2d query that finds all indexed 2d GeoBoundingBoxField values that cross the defined 3d bounding box

Parameters:

field - field name. must not be null

minLat - minimum latitude value (in degrees); valid in [-90.0 : 90.0]

minLon - minimum longitude value (in degrees); valid in [-180.0 : 180.0]

maxLat - maximum latitude value (in degrees); valid in [minLat : 90.0]

maxLon - maximum longitude value (in degrees); valid in [minLon : 180.0]

Returns:

query for matching 2d bounding boxes that cross the defined bounding box

toString

public String toString()

Overrides:

toString in class Field