plugins/org.eclipse.uml2.uml/src/org/eclipse/uml2/uml/internal/impl/IntervalConstraintImpl.java

/*
 * Copyright (c) 2005, 2011 IBM Corporation, CEA, 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
 *   Kenn Hussey (CEA) - 327039
 *
 * $Id: IntervalConstraintImpl.java,v 1.21 2007/04/25 17:47:02 khussey Exp $
 */
package org.eclipse.uml2.uml.internal.impl;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;

import org.eclipse.emf.ecore.impl.ENotificationImpl;

import org.eclipse.uml2.uml.Interval;
import org.eclipse.uml2.uml.IntervalConstraint;
import org.eclipse.uml2.uml.Type;
import org.eclipse.uml2.uml.UMLPackage;
import org.eclipse.uml2.uml.ValueSpecification;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Interval Constraint</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.IntervalConstraintImpl#getSpecification <em>Specification</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class IntervalConstraintImpl
		extends ConstraintImpl
		implements IntervalConstraint {

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected IntervalConstraintImpl() {
		super();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EClass eStaticClass() {
		return UMLPackage.Literals.INTERVAL_CONSTRAINT;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public ValueSpecification getSpecification() {
		if (specification != null && specification.eIsProxy()) {
			InternalEObject oldSpecification = (InternalEObject) specification;
			specification = (ValueSpecification) eResolveProxy(oldSpecification);
			if (specification != oldSpecification) {
				InternalEObject newSpecification = (InternalEObject) specification;
				NotificationChain msgs = oldSpecification.eInverseRemove(this,
					EOPPOSITE_FEATURE_BASE
						- UMLPackage.INTERVAL_CONSTRAINT__SPECIFICATION, null,
					null);
				if (newSpecification.eInternalContainer() == null) {
					msgs = newSpecification.eInverseAdd(this,
						EOPPOSITE_FEATURE_BASE
							- UMLPackage.INTERVAL_CONSTRAINT__SPECIFICATION,
						null, msgs);
				}
				if (msgs != null)
					msgs.dispatch();
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE,
						UMLPackage.INTERVAL_CONSTRAINT__SPECIFICATION,
						oldSpecification, specification));
			}
		}
		return specification;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public ValueSpecification basicGetSpecification() {
		return specification;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetSpecificationGen(
			ValueSpecification newSpecification, NotificationChain msgs) {
		ValueSpecification oldSpecification = specification;
		specification = newSpecification;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this,
				Notification.SET,
				UMLPackage.INTERVAL_CONSTRAINT__SPECIFICATION,
				oldSpecification, newSpecification);
			if (msgs == null)
				msgs = notification;
			else
				msgs.add(notification);
		}
		return msgs;
	}

	@Override
	public NotificationChain basicSetSpecification(
			ValueSpecification newSpecification, NotificationChain msgs) {

		if (newSpecification != null && !(newSpecification instanceof Interval)) {
			throw new IllegalArgumentException(newSpecification.toString());
		}

		return basicSetSpecificationGen(newSpecification, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void setSpecification(ValueSpecification newSpecification) {
		if (newSpecification != specification) {
			NotificationChain msgs = null;
			if (specification != null)
				msgs = ((InternalEObject) specification).eInverseRemove(this,
					EOPPOSITE_FEATURE_BASE
						- UMLPackage.INTERVAL_CONSTRAINT__SPECIFICATION, null,
					msgs);
			if (newSpecification != null)
				msgs = ((InternalEObject) newSpecification).eInverseAdd(this,
					EOPPOSITE_FEATURE_BASE
						- UMLPackage.INTERVAL_CONSTRAINT__SPECIFICATION, null,
					msgs);
			msgs = basicSetSpecification(newSpecification, msgs);
			if (msgs != null)
				msgs.dispatch();
		} else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				UMLPackage.INTERVAL_CONSTRAINT__SPECIFICATION,
				newSpecification, newSpecification));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public ValueSpecification createSpecification(String name, Type type,
			EClass eClass) {
		ValueSpecification newSpecification = (ValueSpecification) create(eClass);
		setSpecification(newSpecification);
		if (name != null)
			newSpecification.setName(name);
		if (type != null)
			newSpecification.setType(type);
		return newSpecification;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isSetSpecification() {
		return specification != null;
	}

} //IntervalConstraintImpl