deegree 2.5 (2011/06/29 09:44 build-8-official)

org.deegree.model.filterencoding
Class PropertyIsNullOperation

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

public class PropertyIsNullOperation
extends ComparisonOperation

Encapsulates the information of a <PropertyIsNull>-element (as defined in Filter DTD). The DTD defines the properties type to be tested as PropertyName or Literal.

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
PropertyIsNullOperation(PropertyName propertyName)
           
 
Method Summary
static Operation buildFromDOM(org.w3c.dom.Element element)
          Deprecated. use the 1.0.0 filter encoding aware method instead.
static Operation buildFromDOM(org.w3c.dom.Element element, boolean useVersion_1_0_0)
          Given a DOM-fragment, a corresponding Operation-object is built.
 boolean evaluate(Feature feature)
          Calculates the PropertyIsNull -Operation's logical value based on the certain property values of the given Feature.
 PropertyName getPropertyName()
           
 java.lang.StringBuffer to100XML()
          Produces an XML representation of this object that complies to Filter Encoding specification 1.0.0.
 java.lang.StringBuffer to110XML()
          Produces an XML representation of this object that complies to Filter Encoding specification 1.1.0.
 java.lang.StringBuffer toXML()
          Produces an XML representation of this object.
 
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

PropertyIsNullOperation

public PropertyIsNullOperation(PropertyName propertyName)
Parameters:
propertyName - to check for
Method Detail

getPropertyName

public PropertyName getPropertyName()
Returns:
the property name

buildFromDOM

@Deprecated
public static Operation buildFromDOM(org.w3c.dom.Element element)
                              throws FilterConstructionException
Deprecated. use the 1.0.0 filter encoding aware method instead.

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 - to build the bean from
Returns:
a Bean of the DOM
Throws:
FilterConstructionException - if the structure of the DOM-fragment is invalid

buildFromDOM

public static Operation buildFromDOM(org.w3c.dom.Element element,
                                     boolean useVersion_1_0_0)
                              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 - to build the bean from
useVersion_1_0_0 - if the filterencoding 1.0.0 should be used.
Returns:
a Bean of the DOM
Throws:
FilterConstructionException - if the structure of the DOM-fragment is invalid

toXML

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

Returns:
an XML representation of this object.

to100XML

public java.lang.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 java.lang.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 PropertyIsNull -Operation's logical value based on the certain property values of the given Feature.

Parameters:
feature - that determines the property values
Returns:
true, if the PropertyIsNull -Operation evaluates to true, else false
Throws:
FilterEvaluationException - if the evaluation fails

deegree 2.5 (2011/06/29 09:44 build-8-official)

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