prajna.structure.ontology

Class OwlClassReasoner

java.lang.Object

prajna.structure.ontology.OwlClassReasoner

public class OwlClassReasoner
extends java.lang.Object

Reasoner to derive values based upon class queries. This class takes a particular OwlClass, a field to query for, and a group of property assignments. It attempts to find any OwlThings which match the queried field for the given assignment map. This class will support additional reasoning queries in the future.

Author:

Edward Swing

Constructor Summary

Constructors

Constructor and Description
OwlClassReasoner() Constructor used when this reasoner is created as a bean
OwlClassReasoner(org.w3c.dom.Element cfgElement) Instantiates a new OwlClassReasoner from an XML element.

Method Summary

Methods

Modifier and Type	Method and Description
java.util.Set<OwlThing>	getMatches() Get the set of OwlThings which match the query field for the baseClass.
OwlClass	getOwlClass() Get the base class for this Reasoner
OwlClass	getRefinedClass() Get the refined class for this base class and assignment map.
void	setAssignment(java.lang.String assignment) Set a particular assignment.
void	setOwlClass(OwlClass owlClass) Set the base class for this Reasoner
void	setOwlClassName(java.lang.String className) Set the base class for this Reasoner
void	setQueryField(java.lang.String field) Set the query field for this reasoner.

Methods inherited from class java.lang.Object

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

Constructor Detail

OwlClassReasoner

public OwlClassReasoner()

Constructor used when this reasoner is created as a bean

OwlClassReasoner

public OwlClassReasoner(org.w3c.dom.Element cfgElement)

Instantiates a new OwlClassReasoner from an XML element. The configuration element should contain field mappings from the DataRecord fields to the OwlClass properties

Parameters:

cfgElement - the configuration element

Method Detail

getMatches

public java.util.Set<OwlThing> getMatches()

Get the set of OwlThings which match the query field for the baseClass. This method finds all OwlThings that can be assigned to the queried property with the assignment map values assigned to the OwlClass.

Returns:

the set of OwlThings matching the queried property field

getOwlClass

public OwlClass getOwlClass()

Get the base class for this Reasoner

Returns:

the base class

getRefinedClass

public OwlClass getRefinedClass()

Get the refined class for this base class and assignment map. This method derives the refined class based upon OWL intersections of the base class with the properties in the assignment map. If no more specific class is found, the base class is returned.

Returns:

the refined class.

setAssignment

public void setAssignment(java.lang.String assignment)

Set a particular assignment. This method takes a string of the form property=ThingName, finds the OwlThing for the thing name, and adds the property setting to the assignment map.

Parameters:

assignment - the assignment string

setOwlClass

public void setOwlClass(OwlClass owlClass)

Set the base class for this Reasoner

Parameters:

owlClass - the base class

setOwlClassName

public void setOwlClassName(java.lang.String className)

Set the base class for this Reasoner

Parameters:

className - the name of the base class

setQueryField

public void setQueryField(java.lang.String field)

Set the query field for this reasoner. The query field, which is the unknown property for the baseClass, is the field which this reasoner attempts to match

Parameters:

field - the field or property to query for