/*******************************************************************************
 * Copyright (c) 2007, 2018 Borland Software Corporation and others.
 * 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v20.html
 *   
 * Contributors:
 *     Borland Software Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.m2m.internal.qvt.oml.expressions.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.m2m.internal.qvt.oml.expressions.ConstructorBody;
import org.eclipse.m2m.internal.qvt.oml.expressions.ExpressionsPackage;
import org.eclipse.m2m.internal.qvt.oml.expressions.ObjectExp;
import org.eclipse.m2m.qvt.oml.ecore.ImperativeOCL.impl.InstantiationExpImpl;
import org.eclipse.ocl.ecore.Variable;
import org.eclipse.ocl.utilities.Visitor;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Object Exp</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * </p>
 * <ul>
 *   <li>{@link org.eclipse.m2m.internal.qvt.oml.expressions.impl.ObjectExpImpl#getBody <em>Body</em>}</li>
 *   <li>{@link org.eclipse.m2m.internal.qvt.oml.expressions.impl.ObjectExpImpl#getReferredObject <em>Referred Object</em>}</li>
 * </ul>
 *
 * @generated
 */
public class ObjectExpImpl extends InstantiationExpImpl implements ObjectExp {
	/**
	 * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
	 * @generated
	 */
    public static final String copyright = "Copyright (c) 2007 Borland Software Corporation\r\n\r\nAll rights reserved. This program and the accompanying materials\r\nare made available under the terms of the Eclipse Public License v2.0\r\nwhich accompanies this distribution, and is available at\r\nhttp://www.eclipse.org/legal/epl-v20.html\r\n  \r\nContributors:\r\n    Borland Software Corporation - initial API and implementation"; //$NON-NLS-1$
    /**
	 * The cached value of the '{@link #getBody() <em>Body</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getBody()
	 * @generated
	 * @ordered
	 */
	protected ConstructorBody body;
				/**
	 * The cached value of the '{@link #getReferredObject() <em>Referred Object</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getReferredObject()
	 * @generated
	 * @ordered
	 */
	protected Variable referredObject;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public ConstructorBody getBody() {
		return body;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetBody(ConstructorBody newBody, NotificationChain msgs) {
		ConstructorBody oldBody = body;
		body = newBody;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, ExpressionsPackage.OBJECT_EXP__BODY, oldBody, newBody);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setBody(ConstructorBody newBody) {
		if (newBody != body) {
			NotificationChain msgs = null;
			if (body != null)
				msgs = ((InternalEObject)body).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - ExpressionsPackage.OBJECT_EXP__BODY, null, msgs);
			if (newBody != null)
				msgs = ((InternalEObject)newBody).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - ExpressionsPackage.OBJECT_EXP__BODY, null, msgs);
			msgs = basicSetBody(newBody, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ExpressionsPackage.OBJECT_EXP__BODY, newBody, newBody));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Variable getReferredObject() {
		if (referredObject != null && referredObject.eIsProxy()) {
			InternalEObject oldReferredObject = (InternalEObject)referredObject;
			referredObject = (Variable)eResolveProxy(oldReferredObject);
			if (referredObject != oldReferredObject) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, ExpressionsPackage.OBJECT_EXP__REFERRED_OBJECT, oldReferredObject, referredObject));
			}
		}
		return referredObject;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Variable basicGetReferredObject() {
		return referredObject;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setReferredObject(Variable newReferredObject) {
		Variable oldReferredObject = referredObject;
		referredObject = newReferredObject;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ExpressionsPackage.OBJECT_EXP__REFERRED_OBJECT, oldReferredObject, referredObject));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public <T, U extends Visitor<T, ?, ?, ?, ?, ?, ?, ?, ?, ?>> T accept(final U v) {
		if(v instanceof org.eclipse.m2m.internal.qvt.oml.expressions.util.QVTOperationalVisitor) {
		  @SuppressWarnings("unchecked")    		
		  org.eclipse.m2m.internal.qvt.oml.expressions.util.QVTOperationalVisitor<T> visitorExt = (org.eclipse.m2m.internal.qvt.oml.expressions.util.QVTOperationalVisitor) v;    	
		  return visitorExt.visitObjectExp(this);
		}
		return org.eclipse.m2m.internal.qvt.oml.expressions.util.ForeignVisitorDefaultValue.getDefaultValueForVisitor(v);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case ExpressionsPackage.OBJECT_EXP__BODY:
				return basicSetBody(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case ExpressionsPackage.OBJECT_EXP__BODY:
				setBody((ConstructorBody)newValue);
				return;
			case ExpressionsPackage.OBJECT_EXP__REFERRED_OBJECT:
				setReferredObject((Variable)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.OBJECT_EXP__BODY:
				setBody((ConstructorBody)null);
				return;
			case ExpressionsPackage.OBJECT_EXP__REFERRED_OBJECT:
				setReferredObject((Variable)null);
				return;
		}
		super.eUnset(featureID);
	}

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

} //ObjectExpImpl