org.deegree.model.filterencoding
Class DBFunction

java.lang.Object
  org.deegree.model.filterencoding.Expression
      org.deegree.model.filterencoding.Function
          org.deegree.model.filterencoding.DBFunction

public class DBFunction
extends Function

Version:

$Revision: 6251 $, $Date: 2007-03-19 16:59:28 +0100 (Mo, 19 Mrz 2007) $

Author:

Andreas Poth, last edited by: $Author: poth $

Field Summary

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

args, name

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

id

Constructor Summary

DBFunction()

DBFunction(String name, List args)

Method Summary

Object

evaluate(Feature feature) Returns the Function's value (to be used in the evaluation of a complexer Expression).

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

buildFromDOM, getArguments, getExpressionId, getName, setArguments, setName, toXML

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

getExpressionName

Methods inherited from class java.lang.Object

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

Constructor Detail

DBFunction

DBFunction()

DBFunction

public DBFunction(String name,
                  List args)

Parameters:

name -

args -

Method Detail

evaluate

public Object evaluate(Feature feature)
                throws FilterEvaluationException

Description copied from class: Function

Returns the Function's value (to be used in the evaluation of a complexer Expression).

Specified by:

evaluate in class Function

Parameters:

feature - that determines the concrete values of PropertyNames found in the expression

Returns:

the resulting value

Throws:

FilterEvaluationException - if the evaluation fails