/*******************************************************************************
 * Copyright (c) 2005-2011
 * University of Augsburg, Germany <www.ds-lab.org>
 *
 * 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:
 *    Markus Bauer, Programming distributed Systems Lab, University of Augsburg 
 *    	- initial API and implementation
 *    Wolf Fischer, Programming distributed Systems Lab, University of Augsburg
 *      - view support
 *    Christian Saad, Programming distributed Systems Lab, University of Augsburg
 *      - maintenance and extension 
 *******************************************************************************/
package org.eclipse.jwt.meta.model.processes.impl;

import java.util.Collection;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.ecore.util.EObjectContainmentEList;
import org.eclipse.emf.ecore.util.InternalEList;
import org.eclipse.jwt.meta.model.data.ParameterMapping;
import org.eclipse.jwt.meta.model.processes.Activity;
import org.eclipse.jwt.meta.model.processes.ActivityLinkNode;
import org.eclipse.jwt.meta.model.processes.ProcessesPackage;


/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Activity Link Node</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.jwt.meta.model.processes.impl.ActivityLinkNodeImpl#getLinksto <em>Linksto</em>}</li>
 *   <li>{@link org.eclipse.jwt.meta.model.processes.impl.ActivityLinkNodeImpl#getUses <em>Uses</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class ActivityLinkNodeImpl
		extends ExecutableNodeImpl
		implements ActivityLinkNode
{

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public static final String copyright = "Copyright (c) 2005-2011  Eclipse Java Workflow Tooling (JWT) Project <www.eclipse.org/jwt>";

	/**
	 * The cached value of the '{@link #getLinksto() <em>Linksto</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getLinksto()
	 * @generated
	 * @ordered
	 */
	protected Activity linksto;

	/**
	 * The cached value of the '{@link #getUses() <em>Uses</em>}' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getUses()
	 * @generated
	 * @ordered
	 */
	protected EList<ParameterMapping> uses;


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


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


	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Activity getLinksto()
	{
		if (linksto != null && linksto.eIsProxy())
		{
			InternalEObject oldLinksto = (InternalEObject) linksto;
			linksto = (Activity) eResolveProxy(oldLinksto);
			if (linksto != oldLinksto)
			{
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE,
							ProcessesPackage.ACTIVITY_LINK_NODE__LINKSTO, oldLinksto,
							linksto));
			}
		}
		return linksto;
	}


	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Activity basicGetLinksto()
	{
		return linksto;
	}


	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setLinksto(Activity newLinksto)
	{
		Activity oldLinksto = linksto;
		linksto = newLinksto;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
					ProcessesPackage.ACTIVITY_LINK_NODE__LINKSTO, oldLinksto, linksto));
	}


	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList<ParameterMapping> getUses()
	{
		if (uses == null)
		{
			uses = new EObjectContainmentEList<ParameterMapping>(ParameterMapping.class,
					this, ProcessesPackage.ACTIVITY_LINK_NODE__USES);
		}
		return uses;
	}


	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID,
			NotificationChain msgs)
	{
		switch (featureID)
		{
			case ProcessesPackage.ACTIVITY_LINK_NODE__USES:
				return ((InternalEList<?>) getUses()).basicRemove(otherEnd, 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 ProcessesPackage.ACTIVITY_LINK_NODE__LINKSTO:
				if (resolve)
					return getLinksto();
				return basicGetLinksto();
			case ProcessesPackage.ACTIVITY_LINK_NODE__USES:
				return getUses();
		}
		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 ProcessesPackage.ACTIVITY_LINK_NODE__LINKSTO:
				setLinksto((Activity) newValue);
				return;
			case ProcessesPackage.ACTIVITY_LINK_NODE__USES:
				getUses().clear();
				getUses().addAll((Collection<? extends ParameterMapping>) newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}


	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID)
	{
		switch (featureID)
		{
			case ProcessesPackage.ACTIVITY_LINK_NODE__LINKSTO:
				setLinksto((Activity) null);
				return;
			case ProcessesPackage.ACTIVITY_LINK_NODE__USES:
				getUses().clear();
				return;
		}
		super.eUnset(featureID);
	}


	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID)
	{
		switch (featureID)
		{
			case ProcessesPackage.ACTIVITY_LINK_NODE__LINKSTO:
				return linksto != null;
			case ProcessesPackage.ACTIVITY_LINK_NODE__USES:
				return uses != null && !uses.isEmpty();
		}
		return super.eIsSet(featureID);
	}

} //ActivityLinkNodeImpl