org.deegree.model.filterencoding
Interface Operation

All Known Implementing Classes:

AbstractOperation, ComparisonOperation, LogicalOperation, PropertyIsBetweenOperation, PropertyIsCOMPOperation, PropertyIsInstanceOfOperation, PropertyIsLikeOperation, PropertyIsNullOperation, SpatialOperation

public interface Operation

--------------------------------------------------------------------------

Version:

$Revision: 6259 $ $Date: 2007-03-20 10:15:15 +0100 (Di, 20 Mär 2007) $

Author:

Markus Schneider, Andreas Poth

Method Summary

boolean	evaluate(Feature feature) Calculates the Filter's logical value based on the certain property values of the given feature.
int	getOperatorId() Returns the operator's id.
String	getOperatorName() Returns the name of the operator.
StringBuffer	toXML() Produces an indented XML representation of this object.

Method Detail

getOperatorName

String getOperatorName()

Returns the name of the operator.

getOperatorId

int getOperatorId()

Returns the operator's id.

evaluate

boolean evaluate(Feature feature)
                 throws FilterEvaluationException

Calculates the Filter's logical value based on the certain property values of the given feature.

Parameters:

feature - that determines the values of PropertyNames in the expression

Returns:

true, if the Filter evaluates to true, else false

Throws:

FilterEvaluationException - if the evaluation fails

toXML

StringBuffer toXML()

Produces an indented XML representation of this object.