Package ptolemy.data.ontologies

Class ConceptFromRecordField

java.lang.Object

ptolemy.data.ontologies.ConceptFunction

ptolemy.data.ontologies.ConceptFromRecordField

public class ConceptFromRecordField
extends ConceptFunction

A concept function that returns the concept value from the specified field from an input RecordConcept.

Since:

Ptolemy II 10.0

Version:

$Id$

Author:

Charles Shelton

Pt.AcceptedRating:

Red (cshelton)

Pt.ProposedRating:

Green (cshelton)

Field Summary

Fields inherited from class ptolemy.data.ontologies.ConceptFunction

_argumentDomainOntologies, _name, _numArgsIsFixed, _outputRangeOntology

Constructor Summary

Constructors

Constructor	Description
ConceptFromRecordField(java.lang.String name, java.lang.String fieldLabel, Ontology ontology)	Create a new ConceptFromRecordField concept function with the specified field label.

Method Summary

Modifier and Type	Method	Description
protected Concept	_evaluateFunction(java.util.List<Concept> argValues)	Return the function output from the given input arguments.

Methods inherited from class ptolemy.data.ontologies.ConceptFunction

evaluateFunction, getArgumentDomainOntologies, getName, getNumberOfArguments, getOutputRangeOntology, isMonotonic, isNumberOfArgumentsFixed, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ConceptFromRecordField

public ConceptFromRecordField(java.lang.String name,
                              java.lang.String fieldLabel,
                              Ontology ontology)
                       throws IllegalActionException

Create a new ConceptFromRecordField concept function with the specified field label.

Parameters:

name - The name of the concept function.

fieldLabel - The field label from which to get a concept value from the input RecordConcept.

ontology - The domain and range ontology for this concept function.

Throws:

IllegalActionException - Thrown if the concept function cannot be created.

Method Detail

_evaluateFunction

protected Concept _evaluateFunction(java.util.List<Concept> argValues)
                             throws IllegalActionException

Return the function output from the given input arguments. The output concept is the concept from the field label specified in the constructor from the input RecordConcept.

Specified by:

_evaluateFunction in class ConceptFunction

Parameters:

argValues - The Concept input arguments which should be a single RecordConcept.

Returns:

The output concept that is the value of the RecordConcept at the specified field. The function will return the bottom of the lattice if the field is not contained in the RecordConcept.

Throws:

IllegalActionException - Thrown if there is a problem creating the output Concept or if the input is not a RecordConcept.