/*
 * Copyright (c) 2005, 2006 IBM Corporation 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
 *
 * $Id: MessageImpl.java,v 1.21 2006/11/14 18:02:19 khussey Exp $
 */
package org.eclipse.uml2.uml.internal.impl;

import java.util.Collection;
import java.util.Iterator;
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.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.resource.Resource;

import org.eclipse.emf.ecore.util.EObjectContainmentEList;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.ecore.util.InternalEList;

import org.eclipse.uml2.common.util.CacheAdapter;
import org.eclipse.uml2.common.util.DerivedUnionEObjectEList;

import org.eclipse.uml2.uml.Connector;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.Interaction;
import org.eclipse.uml2.uml.Message;
import org.eclipse.uml2.uml.MessageEnd;
import org.eclipse.uml2.uml.MessageKind;
import org.eclipse.uml2.uml.MessageSort;
import org.eclipse.uml2.uml.NamedElement;
import org.eclipse.uml2.uml.Namespace;
import org.eclipse.uml2.uml.StringExpression;
import org.eclipse.uml2.uml.Type;
import org.eclipse.uml2.uml.UMLPackage;
import org.eclipse.uml2.uml.ValueSpecification;
import org.eclipse.uml2.uml.VisibilityKind;

import org.eclipse.uml2.uml.internal.operations.MessageOperations;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Message</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.MessageImpl#getNamespace <em>Namespace</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.MessageImpl#getOwnedElements <em>Owned Element</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.MessageImpl#getMessageKind <em>Message Kind</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.MessageImpl#getMessageSort <em>Message Sort</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.MessageImpl#getReceiveEvent <em>Receive Event</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.MessageImpl#getSendEvent <em>Send Event</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.MessageImpl#getConnector <em>Connector</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.MessageImpl#getInteraction <em>Interaction</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.MessageImpl#getArguments <em>Argument</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.MessageImpl#getSignature <em>Signature</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class MessageImpl
		extends NamedElementImpl
		implements Message {

	/**
	 * The default value of the '{@link #getMessageKind() <em>Message Kind</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getMessageKind()
	 * @generated
	 * @ordered
	 */
	protected static final MessageKind MESSAGE_KIND_EDEFAULT = MessageKind.UNKNOWN_LITERAL;

	/**
	 * The default value of the '{@link #getMessageSort() <em>Message Sort</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getMessageSort()
	 * @generated
	 * @ordered
	 */
	protected static final MessageSort MESSAGE_SORT_EDEFAULT = MessageSort.SYNCH_CALL_LITERAL;

	/**
	 * The cached value of the '{@link #getMessageSort() <em>Message Sort</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getMessageSort()
	 * @generated
	 * @ordered
	 */
	protected MessageSort messageSort = MESSAGE_SORT_EDEFAULT;

	/**
	 * The cached value of the '{@link #getReceiveEvent() <em>Receive Event</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getReceiveEvent()
	 * @generated
	 * @ordered
	 */
	protected MessageEnd receiveEvent = null;

	/**
	 * The cached value of the '{@link #getSendEvent() <em>Send Event</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getSendEvent()
	 * @generated
	 * @ordered
	 */
	protected MessageEnd sendEvent = null;

	/**
	 * The cached value of the '{@link #getConnector() <em>Connector</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getConnector()
	 * @generated
	 * @ordered
	 */
	protected Connector connector = null;

	/**
	 * The cached value of the '{@link #getArguments() <em>Argument</em>}' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getArguments()
	 * @generated
	 * @ordered
	 */
	protected EList arguments = null;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Namespace getNamespace() {
		Namespace namespace = basicGetNamespace();
		return namespace != null && namespace.eIsProxy()
			? (Namespace) eResolveProxy((InternalEObject) namespace)
			: namespace;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList getOwnedElements() {

		CacheAdapter cache = getCacheAdapter();
		if (cache != null) {
			Resource eResource = eResource();
			EList ownedElements = (EList) cache.get(eResource, this,
				UMLPackage.Literals.ELEMENT__OWNED_ELEMENT);
			if (ownedElements == null) {
				cache.put(eResource, this,
					UMLPackage.Literals.ELEMENT__OWNED_ELEMENT,
					ownedElements = new DerivedUnionEObjectEList(Element.class,
						this, UMLPackage.MESSAGE__OWNED_ELEMENT,
						OWNED_ELEMENT_ESUBSETS));
			}
			return ownedElements;
		}
		return new DerivedUnionEObjectEList(Element.class, this,
			UMLPackage.MESSAGE__OWNED_ELEMENT, OWNED_ELEMENT_ESUBSETS);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public MessageKind getMessageKind() {

		return MessageOperations.getMessageKind(this);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public MessageSort getMessageSort() {
		return messageSort;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setMessageSort(MessageSort newMessageSort) {

		MessageSort oldMessageSort = messageSort;
		messageSort = newMessageSort == null
			? MESSAGE_SORT_EDEFAULT
			: newMessageSort;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				UMLPackage.MESSAGE__MESSAGE_SORT, oldMessageSort, messageSort));

	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public MessageEnd getReceiveEvent() {
		if (receiveEvent != null && receiveEvent.eIsProxy()) {
			InternalEObject oldReceiveEvent = (InternalEObject) receiveEvent;
			receiveEvent = (MessageEnd) eResolveProxy(oldReceiveEvent);
			if (receiveEvent != oldReceiveEvent) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE,
						UMLPackage.MESSAGE__RECEIVE_EVENT, oldReceiveEvent,
						receiveEvent));
			}
		}
		return receiveEvent;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public MessageEnd basicGetReceiveEvent() {
		return receiveEvent;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setReceiveEvent(MessageEnd newReceiveEvent) {

		MessageEnd oldReceiveEvent = receiveEvent;
		receiveEvent = newReceiveEvent;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				UMLPackage.MESSAGE__RECEIVE_EVENT, oldReceiveEvent,
				receiveEvent));

	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public MessageEnd getSendEvent() {
		if (sendEvent != null && sendEvent.eIsProxy()) {
			InternalEObject oldSendEvent = (InternalEObject) sendEvent;
			sendEvent = (MessageEnd) eResolveProxy(oldSendEvent);
			if (sendEvent != oldSendEvent) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE,
						UMLPackage.MESSAGE__SEND_EVENT, oldSendEvent, sendEvent));
			}
		}
		return sendEvent;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public MessageEnd basicGetSendEvent() {
		return sendEvent;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setSendEvent(MessageEnd newSendEvent) {

		MessageEnd oldSendEvent = sendEvent;
		sendEvent = newSendEvent;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				UMLPackage.MESSAGE__SEND_EVENT, oldSendEvent, sendEvent));

	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Connector getConnector() {
		if (connector != null && connector.eIsProxy()) {
			InternalEObject oldConnector = (InternalEObject) connector;
			connector = (Connector) eResolveProxy(oldConnector);
			if (connector != oldConnector) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE,
						UMLPackage.MESSAGE__CONNECTOR, oldConnector, connector));
			}
		}
		return connector;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Connector basicGetConnector() {
		return connector;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setConnector(Connector newConnector) {

		Connector oldConnector = connector;
		connector = newConnector;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				UMLPackage.MESSAGE__CONNECTOR, oldConnector, connector));

	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Interaction getInteraction() {
		if (eContainerFeatureID != UMLPackage.MESSAGE__INTERACTION)
			return null;
		return (Interaction) eContainer();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Interaction basicGetInteraction() {
		if (eContainerFeatureID != UMLPackage.MESSAGE__INTERACTION)
			return null;
		return (Interaction) eInternalContainer();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetInteraction(Interaction newInteraction,
			NotificationChain msgs) {
		msgs = eBasicSetContainer((InternalEObject) newInteraction,
			UMLPackage.MESSAGE__INTERACTION, msgs);

		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setInteraction(Interaction newInteraction) {

		if (newInteraction != eInternalContainer()
			|| (eContainerFeatureID != UMLPackage.MESSAGE__INTERACTION && newInteraction != null)) {
			if (EcoreUtil.isAncestor(this, newInteraction))
				throw new IllegalArgumentException(
					"Recursive containment not allowed for " + toString()); //$NON-NLS-1$
			NotificationChain msgs = null;
			if (eInternalContainer() != null)
				msgs = eBasicRemoveFromContainer(msgs);
			if (newInteraction != null)
				msgs = ((InternalEObject) newInteraction).eInverseAdd(this,
					UMLPackage.INTERACTION__MESSAGE, Interaction.class, msgs);
			msgs = basicSetInteraction(newInteraction, msgs);
			if (msgs != null)
				msgs.dispatch();
		} else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				UMLPackage.MESSAGE__INTERACTION, newInteraction, newInteraction));

	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList getArguments() {
		if (arguments == null) {
			arguments = new EObjectContainmentEList.Resolving(
				ValueSpecification.class, this, UMLPackage.MESSAGE__ARGUMENT);
		}
		return arguments;
	}

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public ValueSpecification getArgument(String name, Type type) {
		return getArgument(name, type, false, null, false);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public ValueSpecification getArgument(String name, Type type,
			boolean ignoreCase, EClass eClass, boolean createOnDemand) {
		argumentLoop : for (Iterator i = getArguments().iterator(); i.hasNext();) {
			ValueSpecification argument = (ValueSpecification) i.next();
			if (eClass != null && !eClass.isInstance(argument))
				continue argumentLoop;
			if (name != null && !(ignoreCase
				? name.equalsIgnoreCase(argument.getName())
				: name.equals(argument.getName())))
				continue argumentLoop;
			if (type != null && !type.equals(argument.getType()))
				continue argumentLoop;
			return argument;
		}
		return createOnDemand && eClass != null
			? createArgument(name, type, eClass)
			: null;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NamedElement getSignature() {
		NamedElement signature = basicGetSignature();
		return signature != null && signature.eIsProxy()
			? (NamedElement) eResolveProxy((InternalEObject) signature)
			: signature;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NamedElement basicGetSignature() {

		return MessageOperations.getSignature(this);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean validateSendingReceivingMessageEvent(
			DiagnosticChain diagnostics, Map context) {
		return MessageOperations.validateSendingReceivingMessageEvent(this,
			diagnostics, context);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean validateSignatureReferTo(DiagnosticChain diagnostics,
			Map context) {
		return MessageOperations.validateSignatureReferTo(this, diagnostics,
			context);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean validateSignatureIsOperation(DiagnosticChain diagnostics,
			Map context) {
		return MessageOperations.validateSignatureIsOperation(this,
			diagnostics, context);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean validateSignatureIsSignal(DiagnosticChain diagnostics,
			Map context) {
		return MessageOperations.validateSignatureIsSignal(this, diagnostics,
			context);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean validateArguments(DiagnosticChain diagnostics, Map context) {
		return MessageOperations.validateArguments(this, diagnostics, context);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean validateCannotCrossBoundaries(DiagnosticChain diagnostics,
			Map context) {
		return MessageOperations.validateCannotCrossBoundaries(this,
			diagnostics, context);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean validateOccurrenceSpecifications(
			DiagnosticChain diagnostics, Map context) {
		return MessageOperations.validateOccurrenceSpecifications(this,
			diagnostics, context);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain eInverseAdd(InternalEObject otherEnd,
			int featureID, NotificationChain msgs) {
		switch (featureID) {
			case UMLPackage.MESSAGE__EANNOTATIONS :
				return ((InternalEList) getEAnnotations()).basicAdd(otherEnd,
					msgs);
			case UMLPackage.MESSAGE__CLIENT_DEPENDENCY :
				return ((InternalEList) getClientDependencies()).basicAdd(
					otherEnd, msgs);
			case UMLPackage.MESSAGE__INTERACTION :
				if (eInternalContainer() != null)
					msgs = eBasicRemoveFromContainer(msgs);
				return basicSetInteraction((Interaction) otherEnd, msgs);
		}
		return eDynamicInverseAdd(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain eInverseRemove(InternalEObject otherEnd,
			int featureID, NotificationChain msgs) {
		switch (featureID) {
			case UMLPackage.MESSAGE__EANNOTATIONS :
				return ((InternalEList) getEAnnotations()).basicRemove(
					otherEnd, msgs);
			case UMLPackage.MESSAGE__OWNED_COMMENT :
				return ((InternalEList) getOwnedComments()).basicRemove(
					otherEnd, msgs);
			case UMLPackage.MESSAGE__CLIENT_DEPENDENCY :
				return ((InternalEList) getClientDependencies()).basicRemove(
					otherEnd, msgs);
			case UMLPackage.MESSAGE__NAME_EXPRESSION :
				return basicSetNameExpression(null, msgs);
			case UMLPackage.MESSAGE__INTERACTION :
				return basicSetInteraction(null, msgs);
			case UMLPackage.MESSAGE__ARGUMENT :
				return ((InternalEList) getArguments()).basicRemove(otherEnd,
					msgs);
		}
		return eDynamicInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain eBasicRemoveFromContainerFeature(
			NotificationChain msgs) {
		switch (eContainerFeatureID) {
			case UMLPackage.MESSAGE__INTERACTION :
				return eInternalContainer().eInverseRemove(this,
					UMLPackage.INTERACTION__MESSAGE, Interaction.class, msgs);
		}
		return eDynamicBasicRemoveFromContainer(msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case UMLPackage.MESSAGE__EANNOTATIONS :
				return getEAnnotations();
			case UMLPackage.MESSAGE__OWNED_ELEMENT :
				return getOwnedElements();
			case UMLPackage.MESSAGE__OWNER :
				if (resolve)
					return getOwner();
				return basicGetOwner();
			case UMLPackage.MESSAGE__OWNED_COMMENT :
				return getOwnedComments();
			case UMLPackage.MESSAGE__NAME :
				return getName();
			case UMLPackage.MESSAGE__VISIBILITY :
				return getVisibility();
			case UMLPackage.MESSAGE__QUALIFIED_NAME :
				return getQualifiedName();
			case UMLPackage.MESSAGE__CLIENT_DEPENDENCY :
				return getClientDependencies();
			case UMLPackage.MESSAGE__NAMESPACE :
				if (resolve)
					return getNamespace();
				return basicGetNamespace();
			case UMLPackage.MESSAGE__NAME_EXPRESSION :
				if (resolve)
					return getNameExpression();
				return basicGetNameExpression();
			case UMLPackage.MESSAGE__MESSAGE_KIND :
				return getMessageKind();
			case UMLPackage.MESSAGE__MESSAGE_SORT :
				return getMessageSort();
			case UMLPackage.MESSAGE__RECEIVE_EVENT :
				if (resolve)
					return getReceiveEvent();
				return basicGetReceiveEvent();
			case UMLPackage.MESSAGE__SEND_EVENT :
				if (resolve)
					return getSendEvent();
				return basicGetSendEvent();
			case UMLPackage.MESSAGE__CONNECTOR :
				if (resolve)
					return getConnector();
				return basicGetConnector();
			case UMLPackage.MESSAGE__INTERACTION :
				if (resolve)
					return getInteraction();
				return basicGetInteraction();
			case UMLPackage.MESSAGE__ARGUMENT :
				return getArguments();
			case UMLPackage.MESSAGE__SIGNATURE :
				if (resolve)
					return getSignature();
				return basicGetSignature();
		}
		return eDynamicGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case UMLPackage.MESSAGE__EANNOTATIONS :
				getEAnnotations().clear();
				getEAnnotations().addAll((Collection) newValue);
				return;
			case UMLPackage.MESSAGE__OWNED_COMMENT :
				getOwnedComments().clear();
				getOwnedComments().addAll((Collection) newValue);
				return;
			case UMLPackage.MESSAGE__NAME :
				setName((String) newValue);
				return;
			case UMLPackage.MESSAGE__VISIBILITY :
				setVisibility((VisibilityKind) newValue);
				return;
			case UMLPackage.MESSAGE__CLIENT_DEPENDENCY :
				getClientDependencies().clear();
				getClientDependencies().addAll((Collection) newValue);
				return;
			case UMLPackage.MESSAGE__NAME_EXPRESSION :
				setNameExpression((StringExpression) newValue);
				return;
			case UMLPackage.MESSAGE__MESSAGE_SORT :
				setMessageSort((MessageSort) newValue);
				return;
			case UMLPackage.MESSAGE__RECEIVE_EVENT :
				setReceiveEvent((MessageEnd) newValue);
				return;
			case UMLPackage.MESSAGE__SEND_EVENT :
				setSendEvent((MessageEnd) newValue);
				return;
			case UMLPackage.MESSAGE__CONNECTOR :
				setConnector((Connector) newValue);
				return;
			case UMLPackage.MESSAGE__INTERACTION :
				setInteraction((Interaction) newValue);
				return;
			case UMLPackage.MESSAGE__ARGUMENT :
				getArguments().clear();
				getArguments().addAll((Collection) newValue);
				return;
		}
		eDynamicSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eUnset(int featureID) {
		switch (featureID) {
			case UMLPackage.MESSAGE__EANNOTATIONS :
				getEAnnotations().clear();
				return;
			case UMLPackage.MESSAGE__OWNED_COMMENT :
				getOwnedComments().clear();
				return;
			case UMLPackage.MESSAGE__NAME :
				unsetName();
				return;
			case UMLPackage.MESSAGE__VISIBILITY :
				unsetVisibility();
				return;
			case UMLPackage.MESSAGE__CLIENT_DEPENDENCY :
				getClientDependencies().clear();
				return;
			case UMLPackage.MESSAGE__NAME_EXPRESSION :
				setNameExpression((StringExpression) null);
				return;
			case UMLPackage.MESSAGE__MESSAGE_SORT :
				setMessageSort(MESSAGE_SORT_EDEFAULT);
				return;
			case UMLPackage.MESSAGE__RECEIVE_EVENT :
				setReceiveEvent((MessageEnd) null);
				return;
			case UMLPackage.MESSAGE__SEND_EVENT :
				setSendEvent((MessageEnd) null);
				return;
			case UMLPackage.MESSAGE__CONNECTOR :
				setConnector((Connector) null);
				return;
			case UMLPackage.MESSAGE__INTERACTION :
				setInteraction((Interaction) null);
				return;
			case UMLPackage.MESSAGE__ARGUMENT :
				getArguments().clear();
				return;
		}
		eDynamicUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case UMLPackage.MESSAGE__EANNOTATIONS :
				return eAnnotations != null && !eAnnotations.isEmpty();
			case UMLPackage.MESSAGE__OWNED_ELEMENT :
				return isSetOwnedElements();
			case UMLPackage.MESSAGE__OWNER :
				return isSetOwner();
			case UMLPackage.MESSAGE__OWNED_COMMENT :
				return ownedComments != null && !ownedComments.isEmpty();
			case UMLPackage.MESSAGE__NAME :
				return isSetName();
			case UMLPackage.MESSAGE__VISIBILITY :
				return isSetVisibility();
			case UMLPackage.MESSAGE__QUALIFIED_NAME :
				return QUALIFIED_NAME_EDEFAULT == null
					? getQualifiedName() != null
					: !QUALIFIED_NAME_EDEFAULT.equals(getQualifiedName());
			case UMLPackage.MESSAGE__CLIENT_DEPENDENCY :
				return clientDependencies != null
					&& !clientDependencies.isEmpty();
			case UMLPackage.MESSAGE__NAMESPACE :
				return isSetNamespace();
			case UMLPackage.MESSAGE__NAME_EXPRESSION :
				return nameExpression != null;
			case UMLPackage.MESSAGE__MESSAGE_KIND :
				return getMessageKind() != MESSAGE_KIND_EDEFAULT;
			case UMLPackage.MESSAGE__MESSAGE_SORT :
				return messageSort != MESSAGE_SORT_EDEFAULT;
			case UMLPackage.MESSAGE__RECEIVE_EVENT :
				return receiveEvent != null;
			case UMLPackage.MESSAGE__SEND_EVENT :
				return sendEvent != null;
			case UMLPackage.MESSAGE__CONNECTOR :
				return connector != null;
			case UMLPackage.MESSAGE__INTERACTION :
				return basicGetInteraction() != null;
			case UMLPackage.MESSAGE__ARGUMENT :
				return arguments != null && !arguments.isEmpty();
			case UMLPackage.MESSAGE__SIGNATURE :
				return basicGetSignature() != null;
		}
		return eDynamicIsSet(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public String toString() {
		if (eIsProxy())
			return super.toString();

		StringBuffer result = new StringBuffer(super.toString());
		result.append(" (messageSort: "); //$NON-NLS-1$
		result.append(messageSort);
		result.append(')');
		return result.toString();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Namespace basicGetNamespace() {

		Interaction interaction = basicGetInteraction();
		if (interaction != null) {
			return interaction;
		}
		return super.basicGetNamespace();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isSetNamespace() {
		return super.isSetNamespace()
			|| eIsSet(UMLPackage.MESSAGE__INTERACTION);
	}

	/**
	 * The array of subset feature identifiers for the '{@link #getOwnedElements() <em>Owned Element</em>}' reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getOwnedElements()
	 * @generated
	 * @ordered
	 */
	protected static final int[] OWNED_ELEMENT_ESUBSETS = new int[]{
		UMLPackage.MESSAGE__OWNED_COMMENT, UMLPackage.MESSAGE__NAME_EXPRESSION,
		UMLPackage.MESSAGE__ARGUMENT};

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isSetOwnedElements() {
		return super.isSetOwnedElements()
			|| eIsSet(UMLPackage.MESSAGE__ARGUMENT);
	}

} //MessageImpl