org.deegree.model.filterencoding
Class SpatialOperation

java.lang.Object
  org.deegree.model.filterencoding.AbstractOperation
      org.deegree.model.filterencoding.SpatialOperation

All Implemented Interfaces:

Operation

public class SpatialOperation
extends AbstractOperation

Encapsulates the information of a spatial_ops entity (as defined in the Filter DTD).

Version:

$Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $

Author:

Markus Schneider, Luigi Marinucci, last edited by: $Author: mschneider $

Field Summary

Fields inherited from class org.deegree.model.filterencoding.AbstractOperation

operatorId

Constructor Summary

SpatialOperation(int operatorId, PropertyName propertyName, Geometry geometry)
Constructs a new SpatialOperation.

SpatialOperation(int operatorId, PropertyName propertyName, Geometry geometry, double d)
Constructs a new SpatialOperation.

Method Summary

static Operation	buildFromDOM(Element element) Deprecated. use the 1.0.0 filter encoding aware method instead.
static Operation	buildFromDOM(Element element, boolean useVersion_1_0_0) Given a DOM-fragment, a corresponding Operation-object is built.
boolean	evaluate(Feature feature) Calculates the SpatialOperation's logical value based on the property values of the given Feature.
double	getDistance() returns the distance for geo spatial comparsions such as DWithin or Beyond
Geometry	getGeometry() Returns the geometry literal used in the operation.
PropertyName	getPropertyName()
void	setGeometry(Geometry geometry) sets a geometry for a spatial operation
void	setPropertyName(PropertyName name) This is necessary for the BBOX operator, where the property name can/must be determined later.
StringBuffer	to100XML() Produces an XML representation of this object that complies to Filter Encoding specification 1.0.0.
StringBuffer	to110XML() Produces an XML representation of this object that complies to Filter Encoding specification 1.1.0.
StringBuffer	toXML() Produces an XML representation of this object.

Methods inherited from class org.deegree.model.filterencoding.AbstractOperation

getOperatorId, getOperatorName

Methods inherited from class java.lang.Object

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

Constructor Detail

SpatialOperation

public SpatialOperation(int operatorId,
                        PropertyName propertyName,
                        Geometry geometry)

Constructs a new SpatialOperation.

Parameters:

operatorId - The OperationDefines id

propertyName - name of the property to do the spatial compare to.

geometry - the geometry to do the spatial compare to.

See Also:

OperationDefines

SpatialOperation

public SpatialOperation(int operatorId,
                        PropertyName propertyName,
                        Geometry geometry,
                        double d)

Constructs a new SpatialOperation.

Parameters:

operatorId - The OperationDefines id

propertyName - name of the property to do the spatial compare to.

geometry - the geometry to do the spatial compare to.

d - the distance (a buffer)

See Also:

Calvin added on 10/21/2003

Method Detail

getDistance

public double getDistance()

returns the distance for geo spatial comparsions such as DWithin or Beyond

Returns:

the distance for geo spatial comparsions such as DWithin or Beyond

buildFromDOM

@Deprecated
public static Operation buildFromDOM(Element element)
                              throws FilterConstructionException

Deprecated. use the 1.0.0 filter encoding aware method instead.

Given a DOM-fragment, a corresponding Operation-object is built. This method recursively calls other buildFromDOM () - methods to validate the structure of the DOM-fragment.

Throws:

FilterConstructionException - if the structure of the DOM-fragment is invalid

buildFromDOM

public static Operation buildFromDOM(Element element,
                                     boolean useVersion_1_0_0)
                              throws FilterConstructionException

Given a DOM-fragment, a corresponding Operation-object is built. This method recursively calls other buildFromDOM () - methods to validate the structure of the DOM-fragment.

Throws:

FilterConstructionException - if the structure of the DOM-fragment is invalid

getGeometry

public Geometry getGeometry()

Returns the geometry literal used in the operation.

Returns:

the literal as a GMLGeometry-object.

setGeometry

public void setGeometry(Geometry geometry)

sets a geometry for a spatial operation

Parameters:

geometry -

getPropertyName

public PropertyName getPropertyName()

Returns:

the name of the (spatial) property that shall be use for geo spatial comparsions

toXML

public StringBuffer toXML()

Description copied from interface: Operation

Produces an XML representation of this object.

Returns:

an XML representation of this object.

to100XML

public StringBuffer to100XML()

Description copied from interface: Operation

Produces an XML representation of this object that complies to Filter Encoding specification 1.0.0.

Returns:

an XML representation of this object

to110XML

public StringBuffer to110XML()

Description copied from interface: Operation

Produces an XML representation of this object that complies to Filter Encoding specification 1.1.0.

Returns:

an XML representation of this object

evaluate

public boolean evaluate(Feature feature)
                 throws FilterEvaluationException

Calculates the SpatialOperation's logical value based on the property values of the given Feature.

TODO: Implement operations: CROSSES, BEYOND, OVERLAPS AND TOUCHES.

Parameters:

feature - that determines the property values

Returns:

true, if the SpatialOperation evaluates to true, else false

Throws:

FilterEvaluationException - if the evaluation fails

setPropertyName

public void setPropertyName(PropertyName name)

This is necessary for the BBOX operator, where the property name can/must be determined later.

Parameters:

name -