org.deegree.model.filterencoding
Interface Filter

All Known Implementing Classes:

AbstractFilter, ComplexFilter, FalseFilter, FeatureFilter

public interface Filter

Marker interface for filters from the Filter Encoding Specification.

Version:

$Revision: 7237 $, $Date: 2007-05-22 11:11:56 +0200 (Di, 22 Mai 2007) $

Author:

Markus Schneider, last edited by: $Author: rbezema $

Method Summary

boolean	evaluate(Feature feature) Calculates the Filter's logical value based on the certain property values of the given feature.
StringBuffer	toXML() Produces an XML representation of this object.

Method Detail

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 - 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 XML representation of this object.

Returns:

an XML representation of this object