StateExpImpl.java

/*******************************************************************************
 * Copyright (c) 2006, 2009 IBM Corporation, Zeligsoft Inc., 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
 *   Zeligsoft - Bug 207365
 * 
 * Contributors:
 *   IBM - Initial API and implementation
 *******************************************************************************/
package org.eclipse.ocl.expressions.impl;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.ocl.expressions.ExpressionsPackage;
import org.eclipse.ocl.expressions.StateExp;
import org.eclipse.ocl.utilities.Visitor;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>State Exp</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * </p>
 * <ul>
 *   <li>{@link org.eclipse.ocl.expressions.impl.StateExpImpl#getReferredState <em>Referred State</em>}</li>
 * </ul>
 *
 * @generated
 */
public class StateExpImpl<C, S>
		extends OCLExpressionImpl<C>
		implements StateExp<C, S> {

	/**
	 * The cached value of the '{@link #getReferredState() <em>Referred State</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getReferredState()
	 * @generated
	 * @ordered
	 */
	protected S referredState;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	public S getReferredState() {
		if (referredState != null && ((EObject) referredState).eIsProxy()) {
			InternalEObject oldReferredState = (InternalEObject) referredState;
			referredState = (S) eResolveProxy(oldReferredState);
			if (referredState != oldReferredState) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE,
						ExpressionsPackage.STATE_EXP__REFERRED_STATE,
						oldReferredState, referredState));
			}
		}
		return referredState;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public S basicGetReferredState() {
		return referredState;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setReferredState(S newReferredState) {
		S oldReferredState = referredState;
		referredState = newReferredState;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				ExpressionsPackage.STATE_EXP__REFERRED_STATE, oldReferredState,
				referredState));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case ExpressionsPackage.STATE_EXP__REFERRED_STATE :
				if (resolve)
					return getReferredState();
				return basicGetReferredState();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case ExpressionsPackage.STATE_EXP__REFERRED_STATE :
				setReferredState((S) newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.STATE_EXP__REFERRED_STATE :
				setReferredState((S) null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.STATE_EXP__REFERRED_STATE :
				return referredState != null;
		}
		return super.eIsSet(featureID);
	}

	/**
	 * @generated NOT
	 */
	@Override
	@SuppressWarnings("unchecked")
	public <T, U extends Visitor<T, ?, ?, ?, ?, ?, ?, ?, ?, ?>> T accept(U v) {
		return ((Visitor<T, C, ?, ?, ?, ?, S, ?, ?, ?>) v).visitStateExp(this);
	}

} //StateExpImpl