/*
 * Copyright (c) 2005, 2006 IBM Corporation and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   IBM - initial API and implementation
 *
 * $Id: ExecutionSpecification.java,v 1.4 2006/12/14 15:49:27 khussey Exp $
 */
package org.eclipse.uml2.uml;

import java.util.Map;

import org.eclipse.emf.common.util.DiagnosticChain;

/**
 * <!-- begin-user-doc -->
 * A representation of the model object '<em><b>Execution Specification</b></em>'.
 * <!-- end-user-doc -->
 *
 * <!-- begin-model-doc -->
 * An execution specification is a specification of the execution of a unit of behavior or action within the lifeline. The duration of an execution specification is represented by two cccurrence specifications, the start occurrence specification and the finish occurrence specification.
 * <!-- end-model-doc -->
 *
 * <p>
 * The following features are supported:
 * <ul>
 *   <li>{@link org.eclipse.uml2.uml.ExecutionSpecification#getStart <em>Start</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.ExecutionSpecification#getFinish <em>Finish</em>}</li>
 * </ul>
 * </p>
 *
 * @see org.eclipse.uml2.uml.UMLPackage#getExecutionSpecification()
 * @model abstract="true"
 * @generated
 */
public interface ExecutionSpecification
		extends InteractionFragment {

	/**
	 * Returns the value of the '<em><b>Start</b></em>' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * References the OccurrenceSpecification that designates the start of the Action or Behavior
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Start</em>' reference.
	 * @see #setStart(OccurrenceSpecification)
	 * @see org.eclipse.uml2.uml.UMLPackage#getExecutionSpecification_Start()
	 * @model required="true" ordered="false"
	 * @generated
	 */
	OccurrenceSpecification getStart();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.ExecutionSpecification#getStart <em>Start</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Start</em>' reference.
	 * @see #getStart()
	 * @generated
	 */
	void setStart(OccurrenceSpecification value);

	/**
	 * Returns the value of the '<em><b>Finish</b></em>' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * References the OccurrenceSpecification that designates the finish of the Action or Behavior.
	 * <!-- end-model-doc -->
	 * @return the value of the '<em>Finish</em>' reference.
	 * @see #setFinish(OccurrenceSpecification)
	 * @see org.eclipse.uml2.uml.UMLPackage#getExecutionSpecification_Finish()
	 * @model required="true" ordered="false"
	 * @generated
	 */
	OccurrenceSpecification getFinish();

	/**
	 * Sets the value of the '{@link org.eclipse.uml2.uml.ExecutionSpecification#getFinish <em>Finish</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Finish</em>' reference.
	 * @see #getFinish()
	 * @generated
	 */
	void setFinish(OccurrenceSpecification value);

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * <!-- begin-model-doc -->
	 * The startEvent and the finishEvent must be on the same Lifeline
	 * start.lifeline = finish.lifeline
	 * <!-- end-model-doc -->
	 * @model
	 * @generated
	 */
	boolean validateSameLifeline(DiagnosticChain diagnostics,
			Map<Object, Object> context);

} // ExecutionSpecification