org.deegree.model.filterencoding
Class LogicalOperation

java.lang.Object
  org.deegree.model.filterencoding.AbstractOperation
      org.deegree.model.filterencoding.LogicalOperation

All Implemented Interfaces:

Operation

public class LogicalOperation
extends AbstractOperation

Encapsulates the information of a logical_ops entity (as defined in the Filter DTD).

Since:

2.0

Version:

$Revision: 9343 $, 1.0. $Revision: 9343 $, $Date: 2007-12-27 14:30:32 +0100 (Do, 27 Dez 2007) $

Author:

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

Field Summary

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

operatorId

Constructor Summary

LogicalOperation(int operatorId, List<Operation> arguments)
Constructs a new LogicalOperation.

Method Summary

static Operation	buildFromDOM(Element element) Deprecated. use the 1.0.0 filter encoding aware method instead.
static Operation	buildFromDOM(Element element, boolean useVersion_1_0_0) Given a DOM-fragment, a corresponding Operation-object is built.
boolean	evaluate(Feature feature) Calculates the LogicalOperation's logical value based on the certain property values of the given Feature.
List<Operation>	getArguments() Returns the arguments of the operation.
StringBuffer	toXML() Produces an indented 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

LogicalOperation

public LogicalOperation(int operatorId,
                        List<Operation> arguments)

Constructs a new LogicalOperation.

Parameters:

operatorId -

arguments -

See Also:

OperationDefines

Method Detail

getArguments

public List<Operation> getArguments()

Returns the arguments of the operation. These are OperationsMetadata as well.

Returns:

a list of arguments of the operation

buildFromDOM

@Deprecated
public static Operation buildFromDOM(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 -

Returns:

opertation

Throws:

FilterConstructionException - if the structure of the DOM-fragment is invalid

buildFromDOM

public static Operation buildFromDOM(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 -

Returns:

opertation

Throws:

FilterConstructionException - if the structure of the DOM-fragment is invalid

toXML

public StringBuffer toXML()

Produces an indented XML representation of this object.

Returns:

XML representation of opertation

evaluate

public boolean evaluate(Feature feature)
                 throws FilterEvaluationException

Calculates the LogicalOperation's logical value based on the certain property values of the given Feature.

Parameters:

feature - that determines the property values

Returns:

true, if the LogicalOperation evaluates to true, else false

Throws:

FilterEvaluationException - if the evaluation fails