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This open source software is a reference implementation, consisting of software and related files, for the OMG specification called the Semantics of a Foundational Subset for Executable UML Models (fUML). The reference implementation is intended to implement the execution semantics of UML activity models, accepting an XMI file from a conformant UML model as its input and providing an execution trace of the selected activity model(s) as its output. The core execution engine, which is directly generated from the normative syntactic and semantic models for fUML, may also be used as a library implementation of fUML in other software.

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/*
 * Initial version copyright 2008 Lockheed Martin Corporation, except  
 * as stated in the file entitled Licensing-Information. 
 * 
 * All modifications copyright 2009-2017 Data Access Technologies, Inc.
 *
 * Licensed under the Academic Free License version 3.0 
 * (http://www.opensource.org/licenses/afl-3.0.php), except as stated 
 * in the file entitled Licensing-Information. 
 */

package fUML.Semantics.Classes.Kernel;

public class Reference extends fUML.Semantics.Classes.Kernel.StructuredValue {

	public fUML.Semantics.Classes.Kernel.Object_ referent = null;

	public void startBehavior(
			fUML.Syntax.Classes.Kernel.Class_ classifier,
			fUML.Semantics.CommonBehaviors.BasicBehaviors.ParameterValueList inputs) {
		// Asynchronously start the behavior of the given classifier for the
		// referent object.

		this.referent.startBehavior(classifier, inputs);
	} // startBehavior

	public fUML.Semantics.CommonBehaviors.BasicBehaviors.Execution dispatch(
			fUML.Syntax.Classes.Kernel.Operation operation) {
		// Dispatch the given operation to the referent object.

		return this.referent.dispatch(operation);
	} // dispatch

	public void send(
			fUML.Semantics.CommonBehaviors.Communications.EventOccurrence eventOccurrence) {
		// Send the given event occurrence to the referent object.

		this.referent.send(eventOccurrence);
	} // send

	public void destroy() {
		// Destroy the referent.

		this.referent.destroy();
	} // destroy

	public boolean equals(fUML.Semantics.Classes.Kernel.Value otherValue) {
		// Test if this reference is equal to the otherValue.
		// To be equal, the otherValue must also be a reference, with the same
		// referent as this reference.

		boolean isEqual = false;
		if (otherValue instanceof Reference) {
			if (this.referent == null) {
				isEqual = ((Reference)otherValue).referent == null;
			} else {
				isEqual = this.referent.equals(((Reference) otherValue).referent);
			}
		}

		return isEqual;

	} // equals

	public fUML.Semantics.Classes.Kernel.Value copy() {
		// Create a new reference with the same referent as this reference.

		Reference newValue = (Reference) (super.copy());

		newValue.referent = this.referent;

		return newValue;
	} // copy

	protected fUML.Semantics.Classes.Kernel.Value new_() {
		// Create a new reference with no referent.

		return new Reference();
	} // new_

	public fUML.Syntax.Classes.Kernel.ClassifierList getTypes() {
		// Get the types of the referent object.

		return this.referent.getTypes();
	} // getTypes

	public fUML.Semantics.Classes.Kernel.FeatureValue getFeatureValue(
			fUML.Syntax.Classes.Kernel.StructuralFeature feature) {
		// Get the feature value associated with the given feature in the
		// referent object.

		return this.referent.getFeatureValue(feature);
	} // getFeatureValue

	public void setFeatureValue(
			fUML.Syntax.Classes.Kernel.StructuralFeature feature,
			fUML.Semantics.Classes.Kernel.ValueList values, int position) {
		// Set the values associated with the given feature in the referent
		// object.

		this.referent.setFeatureValue(feature, values, position);
	} // setFeatureValue

	public fUML.Semantics.Classes.Kernel.FeatureValueList getFeatureValues() {
		// Return the feature values of the referent.

		return this.referent.getFeatureValues();
	} // getFeatureValues

	public String toString() {
		return "Reference to " + this.referent.toString();
	} // toString

} // Reference