prajna.structure.ontology

Class OwlReasoner

java.lang.Object

prajna.structure.ontology.OwlReasoner

All Implemented Interfaces:

RecordReasoner

public class OwlReasoner
extends java.lang.Object
implements RecordReasoner

Class for adapting objects between data from SemanticAccessors in DataRecord objects and OwlThing objects. This class enables a DataRecord to be transformed into an OwlThing object with the appropriate data mappings. It also enables a DataRecord to be augmented with information from an ontology, based upon membership in a particular class.

Author:

Edward Swing

Constructor Summary

Constructors

Constructor and Description
OwlReasoner(org.w3c.dom.Element cfgElement) Instantiates a new RecordReasoner.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	augmentRecord(DataRecord rec) Augment the data record with information from the ontology.
boolean	canConvert(DataRecord rec) Return whether the given record can be converted by this adapter configuration.
OwlThing	createThing(DataRecord rec) Creates the OwlThing from the DataRecord.
java.lang.String	getTemplateName() Get the template name this reasoner applies to

Methods inherited from class java.lang.Object

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

Constructor Detail

OwlReasoner

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

Instantiates a new RecordReasoner. This class creates any relevant settings from the configuration element from a configuration file. The configuration element should contain field mappings from the DataRecord fields to the OwlClass properties

Parameters:

cfgElement - the configuration element

Method Detail

augmentRecord

public boolean augmentRecord(DataRecord rec)

Augment the data record with information from the ontology. This method finds or creates an OwlThing for the record, infers additional information, then fills in the fields in the record with the values from the created Thing.

Specified by:

augmentRecord in interface RecordReasoner

Parameters:

rec - the data record to augment

Returns:

true if the record has been augmented, false otherwise

canConvert

public boolean canConvert(DataRecord rec)

Return whether the given record can be converted by this adapter configuration. If the class field is an available field within the data record, the data record can be converted.

Parameters:

rec - the DataRecord

Returns:

true, if the DataRecord has a field value for the class field for this configuration, and can therefore be converted.

createThing

public OwlThing createThing(DataRecord rec)

Creates the OwlThing from the DataRecord. This method creates a new OwlThing, and then loops through all field-property mappings. It sets all determinable properties from the fields within the DataRecord. The derived fields in the OwlThing are also set by this method.

Parameters:

rec - the DataRecord

Returns:

the OwlThing created

getTemplateName

public java.lang.String getTemplateName()

Get the template name this reasoner applies to

Returns:

the template name