org.geotools.validation.spatial
Class LineNoSelfOverlappingValidation

java.lang.Object
  org.geotools.validation.DefaultFeatureValidation
      org.geotools.validation.spatial.LineNoSelfOverlappingValidation

All Implemented Interfaces:

FeatureValidation, Validation

public class LineNoSelfOverlappingValidation

extends DefaultFeatureValidation

Ensure the defaultGeometry does not overlap (only works for LineString).

Tests to see if a LineString overlaps itself. It does this by breaking up the LineString into two point segments then intersects them all. If a segment has both of its points on another segment, then they overlap. This is not true in all cases and this method has to be rewritten. If a segment spans two segments, this method will say that they do not overlap when clearly they do.

Version:

$Id: LineNoSelfOverlappingValidation.java 17704 2006-01-23 00:26:16Z desruisseaux $

Author:

bowens, Refractions Research, Inc., $Author: jive $ (last modification)

Field Summary

Fields inherited from interface org.geotools.validation.Validation

ALL, PRIORITY_COMPLEX, PRIORITY_INVOLVED, PRIORITY_SIMPLE, PRIORITY_TRIVIAL

Constructor Summary

LineNoSelfOverlappingValidation()
LineNoSelfOverlappingFeatureValidation constructor.

Method Summary

int	getPriority() Override getPriority.
boolean	validate(Feature feature, FeatureType type, ValidationResults results) Tests to see if a LineString overlaps itself.

Methods inherited from class org.geotools.validation.DefaultFeatureValidation

getDefaultLineString, getDescription, getName, getTypeRef, getTypeRefs, setDescription, setName, setTypeRef

Methods inherited from class java.lang.Object

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

Constructor Detail

LineNoSelfOverlappingValidation

public LineNoSelfOverlappingValidation()

LineNoSelfOverlappingFeatureValidation constructor.

Description

Method Detail

getPriority

public int getPriority()

Override getPriority.

Sets the priority level of this validation.

Specified by:

getPriority in interface Validation

Overrides:

getPriority in class DefaultFeatureValidation

Returns:

A made up priority for this validation.

See Also:

Validation.getPriority()

validate

public boolean validate(Feature feature,
                        FeatureType type,
                        ValidationResults results)

Tests to see if a LineString overlaps itself.

It does this by breaking up the LineString into two point segments then intersects them all. If a segment has both of its points on another segment, then they overlap. This is not true in all cases and this method has to be rewritten. If a segment spans two segments, this method will say that they do not overlap when clearly they do.

Specified by:

validate in interface FeatureValidation

Overrides:

validate in class DefaultFeatureValidation

Parameters:

feature - The Feature to be validated

type - The FeatureTypeInfo of the feature

results - The storage for error messages.

Returns:

True if the feature does not overlap itself.

See Also:

org.geotools.validation.FeatureValidation#validate(org.geotools.feature.Feature, org.geotools.feature.FeatureTypeInfo, org.geotools.validation.ValidationResults)