org.deegree.filter.spatial
Class DWithin

java.lang.Object
  org.deegree.filter.spatial.SpatialOperator
      org.deegree.filter.spatial.DWithin

All Implemented Interfaces:

Operator

public class DWithin
extends SpatialOperator

If geometries are within the specified distance of one another.

Version:

$Revision:$, $Date:$

Author:

Markus Schneider , last edited by: $Author:$

Nested Class Summary

Nested classes/interfaces inherited from class org.deegree.filter.spatial.SpatialOperator

SpatialOperator.SubType

Nested classes/interfaces inherited from interface org.deegree.filter.Operator

Operator.Type

Field Summary

Fields inherited from class org.deegree.filter.spatial.SpatialOperator

propName

Constructor Summary

DWithin(Expression propName, Geometry geometry, Measure distance)

Method Summary

<T> boolean	evaluate(T obj, XPathEvaluator<T> xpathEvaluator) Determines the value of the boolean operator.
Measure	getDistance()
Geometry	getGeometry()
Object[]	getParams()
String	toString(String indent)

Methods inherited from class org.deegree.filter.spatial.SpatialOperator

checkGeometryOrNull, getCompatibleGeometry, getParam1, getPropName, getSubType, getType

Methods inherited from class java.lang.Object

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

Constructor Detail

DWithin

public DWithin(Expression propName,
               Geometry geometry,
               Measure distance)

Method Detail

evaluate

public <T> boolean evaluate(T obj,
                            XPathEvaluator<T> xpathEvaluator)
                 throws FilterEvaluationException

Description copied from interface: Operator

Determines the value of the boolean operator.

Type Parameters:

T - type of the context object

Parameters:

obj - object that the operator is evaluated upon, must not be null

xpathEvaluator - used for evaluation of XPath expressions, must not be null

Returns:

true, if the operator evaluates to true, false otherwise

Throws:

FilterEvaluationException - if the evaluation fails

getGeometry

public Geometry getGeometry()

Returns:

the geometry

getDistance

public Measure getDistance()

Returns:

the distance

toString

public String toString(String indent)

getParams

public Object[] getParams()

Specified by:

getParams in class SpatialOperator