deegree 2.3 (2010/04/09 10:10 build-4-official)

org.deegree.model.filterencoding
Class PropertyIsCOMPOperation

java.lang.Object
  extended by org.deegree.model.filterencoding.AbstractOperation
      extended by org.deegree.model.filterencoding.ComparisonOperation
          extended by org.deegree.model.filterencoding.PropertyIsCOMPOperation
All Implemented Interfaces:
Operation

public class PropertyIsCOMPOperation
extends ComparisonOperation

Encapsulates the information of a -element (as defined in Filter DTD). COMP can be one of the following:

Version:
$Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
Author:
Markus Schneider, last edited by: $Author: mschneider $

Field Summary
 
Fields inherited from class org.deegree.model.filterencoding.AbstractOperation
operatorId
 
Constructor Summary
PropertyIsCOMPOperation(int id, Expression expr1, Expression expr2)
          Creates a new PropertyIsCOMPOperation object.
PropertyIsCOMPOperation(int id, Expression expr1, Expression expr2, boolean matchCase)
           
 
Method Summary
static Operation buildFromDOM(Element element)
          Given a DOM-fragment, a corresponding Operation-object is built.
 boolean evaluate(Feature feature)
          Calculates the ComparisonOperation's logical value based on the certain property values of the given Feature.
 Expression getFirstExpression()
          returns the first Expression of the comparison
 Expression getSecondExpression()
          returns the second Expression of the comparison
 boolean isMatchCase()
          returns matchCase flag
 StringBuffer to100XML()
          Produces an XML representation of this object that complies to Filter Encoding specification 1.0.0.
 StringBuffer to110XML()
          Produces an XML representation of this object that complies to Filter Encoding specification 1.1.0.
 StringBuffer toXML()
          Produces an XML representation of this object.
 
Methods inherited from class org.deegree.model.filterencoding.ComparisonOperation
buildFromDOM
 
Methods inherited from class org.deegree.model.filterencoding.AbstractOperation
getOperatorId, getOperatorName
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

PropertyIsCOMPOperation

public PropertyIsCOMPOperation(int id,
                               Expression expr1,
                               Expression expr2)
Creates a new PropertyIsCOMPOperation object.

Parameters:
id -
expr1 -
expr2 -

PropertyIsCOMPOperation

public PropertyIsCOMPOperation(int id,
                               Expression expr1,
                               Expression expr2,
                               boolean matchCase)
Parameters:
id -
expr1 -
expr2 -
matchCase -
Method Detail

buildFromDOM

public static Operation buildFromDOM(Element element)
                              throws FilterConstructionException
Given a DOM-fragment, a corresponding Operation-object is built. This method recursively calls other buildFromDOM () - methods to validate the structure of the DOM-fragment.

Parameters:
element -
Returns:
a Bean of the Dom
Throws:
FilterConstructionException - if the structure of the DOM-fragment is invalid

getFirstExpression

public Expression getFirstExpression()
returns the first Expression of the comparison

Returns:
the first Expression of the comparison

getSecondExpression

public Expression getSecondExpression()
returns the second Expression of the comparison

Returns:
the second Expression of the comparison

isMatchCase

public boolean isMatchCase()
returns matchCase flag

Returns:
matchCase flag

toXML

public StringBuffer toXML()
Description copied from interface: Operation
Produces an XML representation of this object.

Returns:
an XML representation of this object.

to100XML

public StringBuffer to100XML()
Description copied from interface: Operation
Produces an XML representation of this object that complies to Filter Encoding specification 1.0.0.

Returns:
an XML representation of this object

to110XML

public StringBuffer to110XML()
Description copied from interface: Operation
Produces an XML representation of this object that complies to Filter Encoding specification 1.1.0.

Returns:
an XML representation of this object

evaluate

public boolean evaluate(Feature feature)
                 throws FilterEvaluationException
Calculates the ComparisonOperation's logical value based on the certain property values of the given Feature. TODO: Improve datatype handling.

Parameters:
feature - that determines the property values
Returns:
true, if the FeatureFilter evaluates to true, else false
Throws:
FilterEvaluationException - if the expressions to be compared are of different types

deegree 2.3 (2010/04/09 10:10 build-4-official)

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