Package org.eclipse.rdf4j.query.algebra.evaluation.function.geosparql

Class Distance

java.lang.Object

org.eclipse.rdf4j.query.algebra.evaluation.function.geosparql.Distance

All Implemented Interfaces:

Function

public class Distance
extends Object
implements Function

The GeoSPARQL Function geof:distance, as defined in OGC GeoSPARQL - A Geographic Query Language for RDF Data.

Constructor Summary

Constructors

Constructor	Description
Distance()

Method Summary

Modifier and Type	Method	Description
Value	evaluate(ValueFactory valueFactory, Value... args)	Evaluate the function over the supplied input arguments, using the supplied ValueFactory to produce the result.
String	getURI()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.function.Function

evaluate, mustReturnDifferentResult

Constructor Details

Distance

public Distance()

Method Details

getURI

public String getURI()

Specified by:

getURI in interface Function

evaluate

public Value evaluate(ValueFactory valueFactory,
 Value... args)
               throws ValueExprEvaluationException

Description copied from interface: Function

Evaluate the function over the supplied input arguments, using the supplied ValueFactory to produce the result.

Specified by:

evaluate in interface Function

Parameters:

valueFactory - a ValueFactory to use for producing the function result.

args - the function input arguments.

Returns:

the function result value.

Throws:

ValueExprEvaluationException