org.eclipse.ocl.expressions.impl.CollectionItemImpl Maven / Gradle / Ivy

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/**
 * 
 * 
 * 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
 * 
 * 
 *
 * $Id: CollectionItemImpl.java,v 1.8 2009/01/23 17:16:04 cdamus Exp $
 */
package org.eclipse.ocl.expressions.impl;

import java.util.Map;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;
import org.eclipse.emf.common.util.DiagnosticChain;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.ocl.expressions.CollectionItem;
import org.eclipse.ocl.expressions.ExpressionsPackage;
import org.eclipse.ocl.expressions.OCLExpression;
import org.eclipse.ocl.expressions.operations.CollectionItemOperations;
import org.eclipse.ocl.utilities.Visitor;

/**
 * 
 * An implementation of the model object 'Collection Item'.
 * 
 * 
 * The following features are implemented:
 * 

 *   {@link org.eclipse.ocl.expressions.impl.CollectionItemImpl#getItem Item}
 * 
 * 
 *
 * @generated
 */
public class CollectionItemImpl
		extends CollectionLiteralPartImpl
		implements CollectionItem {

	/**
	 * The cached value of the '{@link #getItem() Item}' containment reference.
	 * 
	 * 
	 * @see #getItem()
	 * @generated
	 * @ordered
	 */
	protected OCLExpression item;

	/**
	 * 
	 * 
	 * @generated
	 */
	protected CollectionItemImpl() {
		super();
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	protected EClass eStaticClass() {
		return ExpressionsPackage.Literals.COLLECTION_ITEM;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public OCLExpression getItem() {
		return item;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public NotificationChain basicSetItem(OCLExpression newItem,
			NotificationChain msgs) {
		OCLExpression oldItem = item;
		item = newItem;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this,
				Notification.SET, ExpressionsPackage.COLLECTION_ITEM__ITEM,
				oldItem, newItem);
			if (msgs == null)
				msgs = notification;
			else
				msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public void setItem(OCLExpression newItem) {
		if (newItem != item) {
			NotificationChain msgs = null;
			if (item != null)
				msgs = ((InternalEObject) item).eInverseRemove(this,
					EOPPOSITE_FEATURE_BASE
						- ExpressionsPackage.COLLECTION_ITEM__ITEM, null, msgs);
			if (newItem != null)
				msgs = ((InternalEObject) newItem).eInverseAdd(this,
					EOPPOSITE_FEATURE_BASE
						- ExpressionsPackage.COLLECTION_ITEM__ITEM, null, msgs);
			msgs = basicSetItem(newItem, msgs);
			if (msgs != null)
				msgs.dispatch();
		} else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				ExpressionsPackage.COLLECTION_ITEM__ITEM, newItem, newItem));
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public boolean checkItemType(DiagnosticChain diagnostics,
			Map context) {
		return CollectionItemOperations.checkItemType(this, diagnostics,
			context);
	}

	/**
	 * @generated NOT
	 */
	@Override
	@SuppressWarnings("unchecked")
	public > T accept(U v) {
		return ((Visitor) v)
			.visitCollectionItem(this);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd,
			int featureID, NotificationChain msgs) {
		switch (featureID) {
			case ExpressionsPackage.COLLECTION_ITEM__ITEM :
				return basicSetItem(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case ExpressionsPackage.COLLECTION_ITEM__ITEM :
				return getItem();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case ExpressionsPackage.COLLECTION_ITEM__ITEM :
				setItem((OCLExpression) newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.COLLECTION_ITEM__ITEM :
				setItem((OCLExpression) null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.COLLECTION_ITEM__ITEM :
				return item != null;
		}
		return super.eIsSet(featureID);
	}

} //CollectionItemImpl