org.opengis.cite.kml2.validation

Class CoordinatesValidator

java.lang.Object

org.opengis.cite.kml2.validation.CoordinatesValidator

public class CoordinatesValidator
extends Object

Checks that the content of a kml:coordinates element satisfies all applicable constraints. The following elements may contain coordinates:

• kml:Point
• kml:LineString
• kml:LinearRing
• kml:LatLonQuad

The content of a kml:coordinates element is a list of white space-separated 2D or 3D tuples that contain comma-separated decimal values (lon,lat[,hgt]). The relevant schema components are shown below. The relevant schema components are shown below.

 
 <xsd:element name="coordinates" type="kml:coordinatesType"/>
 <xsd:simpleType name="coordinatesType">
   <xsd:list itemType="string"/>
 </xsd:simpleType>
 
 

The OGC KML specifications define a compound geographic 3D coordinate reference system in Annex B.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) org.opengis.cite.validation.ValidationErrorHandler	errHandler

Constructor Summary

Constructors

Constructor and Description
CoordinatesValidator() Default constructor.

Method Summary

Modifier and Type	Method and Description
String	getErrorMessages() Returns the error messages reported during the last call to isValid.
boolean	isValid(Node node) Validates coordinate tuples by checking the following: the length of the tuple sequence coordinate values are numeric tuple dimension (must be 2-3)
void	reset() Resets the error handler.

Methods inherited from class java.lang.Object

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

Field Detail

errHandler

org.opengis.cite.validation.ValidationErrorHandler errHandler

Constructor Detail

CoordinatesValidator

public CoordinatesValidator()

Default constructor.

Method Detail

getErrorMessages

public String getErrorMessages()

Returns the error messages reported during the last call to isValid.

Returns:

A String containing error messages (may be empty).

reset

public void reset()

Resets the error handler.

isValid

public boolean isValid(Node node)

Validates coordinate tuples by checking the following:

1. the length of the tuple sequence
2. coordinate values are numeric
3. tuple dimension (must be 2-3)

Parameters:

node - An Element node that contains a kml:coordinates element.

Returns:

true if the tuple sequence is valid; false otherwise.