/*
 * 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: JoinNodeImpl.java,v 1.16 2006/03/01 17:56:38 khussey Exp $
 */
package org.eclipse.uml2.uml.internal.impl;

import java.util.Collection;
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.util.EcoreUtil;
import org.eclipse.emf.ecore.util.InternalEList;

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

import org.eclipse.uml2.uml.Activity;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.JoinNode;
import org.eclipse.uml2.uml.StringExpression;
import org.eclipse.uml2.uml.StructuredActivityNode;
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.JoinNodeOperations;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Join Node</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.JoinNodeImpl#getOwnedElements <em>Owned Element</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.JoinNodeImpl#isCombineDuplicate <em>Is Combine Duplicate</em>}</li>
 *   <li>{@link org.eclipse.uml2.uml.internal.impl.JoinNodeImpl#getJoinSpec <em>Join Spec</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class JoinNodeImpl
		extends ControlNodeImpl
		implements JoinNode {

	/**
	 * The default value of the '{@link #isCombineDuplicate() <em>Is Combine Duplicate</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #isCombineDuplicate()
	 * @generated
	 * @ordered
	 */
	protected static final boolean IS_COMBINE_DUPLICATE_EDEFAULT = true;

	/**
	 * The flag representing the value of the '{@link #isCombineDuplicate() <em>Is Combine Duplicate</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #isCombineDuplicate()
	 * @generated
	 * @ordered
	 */
	protected static final int IS_COMBINE_DUPLICATE_EFLAG = 1 << 9;

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected JoinNodeImpl() {
		super();
		eFlags |= IS_COMBINE_DUPLICATE_EFLAG;
	}

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList getOwnedElements() {
		EList ownedElement = (EList) eVirtualGet(UMLPackage.JOIN_NODE__OWNED_ELEMENT);
		if (ownedElement == null) {
			eVirtualSet(UMLPackage.JOIN_NODE__OWNED_ELEMENT,
				ownedElement = new DerivedUnionEObjectEList(Element.class,
					this, UMLPackage.JOIN_NODE__OWNED_ELEMENT, new int[]{
						UMLPackage.JOIN_NODE__OWNED_COMMENT,
						UMLPackage.JOIN_NODE__NAME_EXPRESSION,
						UMLPackage.JOIN_NODE__JOIN_SPEC}));
		}
		return ownedElement;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isCombineDuplicate() {
		return (eFlags & IS_COMBINE_DUPLICATE_EFLAG) != 0;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setIsCombineDuplicate(boolean newIsCombineDuplicate) {
		boolean oldIsCombineDuplicate = (eFlags & IS_COMBINE_DUPLICATE_EFLAG) != 0;
		if (newIsCombineDuplicate)
			eFlags |= IS_COMBINE_DUPLICATE_EFLAG;
		else
			eFlags &= ~IS_COMBINE_DUPLICATE_EFLAG;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				UMLPackage.JOIN_NODE__IS_COMBINE_DUPLICATE,
				oldIsCombineDuplicate, newIsCombineDuplicate));

	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public ValueSpecification getJoinSpec() {
		ValueSpecification joinSpec = (ValueSpecification) eVirtualGet(UMLPackage.JOIN_NODE__JOIN_SPEC);
		if (joinSpec != null && joinSpec.eIsProxy()) {
			InternalEObject oldJoinSpec = (InternalEObject) joinSpec;
			joinSpec = (ValueSpecification) eResolveProxy(oldJoinSpec);
			if (joinSpec != oldJoinSpec) {
				InternalEObject newJoinSpec = (InternalEObject) joinSpec;
				NotificationChain msgs = oldJoinSpec.eInverseRemove(this,
					EOPPOSITE_FEATURE_BASE - UMLPackage.JOIN_NODE__JOIN_SPEC,
					null, null);
				if (newJoinSpec.eInternalContainer() == null) {
					msgs = newJoinSpec.eInverseAdd(this, EOPPOSITE_FEATURE_BASE
						- UMLPackage.JOIN_NODE__JOIN_SPEC, null, msgs);
				}
				if (msgs != null)
					msgs.dispatch();
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE,
						UMLPackage.JOIN_NODE__JOIN_SPEC, oldJoinSpec, joinSpec));
			}
		}
		return joinSpec;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public ValueSpecification basicGetJoinSpec() {
		return (ValueSpecification) eVirtualGet(UMLPackage.JOIN_NODE__JOIN_SPEC);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetJoinSpec(ValueSpecification newJoinSpec,
			NotificationChain msgs) {
		Object oldJoinSpec = eVirtualSet(UMLPackage.JOIN_NODE__JOIN_SPEC,
			newJoinSpec);
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this,
				Notification.SET, UMLPackage.JOIN_NODE__JOIN_SPEC,
				oldJoinSpec == EVIRTUAL_NO_VALUE
					? null
					: oldJoinSpec, newJoinSpec);
			if (msgs == null)
				msgs = notification;
			else
				msgs.add(notification);
		}

		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setJoinSpec(ValueSpecification newJoinSpec) {
		ValueSpecification joinSpec = (ValueSpecification) eVirtualGet(UMLPackage.JOIN_NODE__JOIN_SPEC);
		if (newJoinSpec != joinSpec) {
			NotificationChain msgs = null;
			if (joinSpec != null)
				msgs = ((InternalEObject) joinSpec).eInverseRemove(this,
					EOPPOSITE_FEATURE_BASE - UMLPackage.JOIN_NODE__JOIN_SPEC,
					null, msgs);
			if (newJoinSpec != null)
				msgs = ((InternalEObject) newJoinSpec).eInverseAdd(this,
					EOPPOSITE_FEATURE_BASE - UMLPackage.JOIN_NODE__JOIN_SPEC,
					null, msgs);
			msgs = basicSetJoinSpec(newJoinSpec, msgs);
			if (msgs != null)
				msgs.dispatch();
		} else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				UMLPackage.JOIN_NODE__JOIN_SPEC, newJoinSpec, newJoinSpec));

	}

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

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain eInverseRemove(InternalEObject otherEnd,
			int featureID, NotificationChain msgs) {
		switch (featureID) {
			case UMLPackage.JOIN_NODE__EANNOTATIONS :
				return ((InternalEList) getEAnnotations()).basicRemove(
					otherEnd, msgs);
			case UMLPackage.JOIN_NODE__OWNED_COMMENT :
				return ((InternalEList) getOwnedComments()).basicRemove(
					otherEnd, msgs);
			case UMLPackage.JOIN_NODE__CLIENT_DEPENDENCY :
				return ((InternalEList) getClientDependencies()).basicRemove(
					otherEnd, msgs);
			case UMLPackage.JOIN_NODE__NAME_EXPRESSION :
				return basicSetNameExpression(null, msgs);
			case UMLPackage.JOIN_NODE__IN_STRUCTURED_NODE :
				return basicSetInStructuredNode(null, msgs);
			case UMLPackage.JOIN_NODE__ACTIVITY :
				return basicSetActivity(null, msgs);
			case UMLPackage.JOIN_NODE__OUTGOING :
				return ((InternalEList) getOutgoings()).basicRemove(otherEnd,
					msgs);
			case UMLPackage.JOIN_NODE__INCOMING :
				return ((InternalEList) getIncomings()).basicRemove(otherEnd,
					msgs);
			case UMLPackage.JOIN_NODE__IN_PARTITION :
				return ((InternalEList) getInPartitions()).basicRemove(
					otherEnd, msgs);
			case UMLPackage.JOIN_NODE__IN_INTERRUPTIBLE_REGION :
				return ((InternalEList) getInInterruptibleRegions())
					.basicRemove(otherEnd, msgs);
			case UMLPackage.JOIN_NODE__JOIN_SPEC :
				return basicSetJoinSpec(null, msgs);
		}
		return eDynamicInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case UMLPackage.JOIN_NODE__EANNOTATIONS :
				return getEAnnotations();
			case UMLPackage.JOIN_NODE__OWNED_ELEMENT :
				return getOwnedElements();
			case UMLPackage.JOIN_NODE__OWNER :
				if (resolve)
					return getOwner();
				return basicGetOwner();
			case UMLPackage.JOIN_NODE__OWNED_COMMENT :
				return getOwnedComments();
			case UMLPackage.JOIN_NODE__NAME :
				return getName();
			case UMLPackage.JOIN_NODE__VISIBILITY :
				return getVisibility();
			case UMLPackage.JOIN_NODE__QUALIFIED_NAME :
				return getQualifiedName();
			case UMLPackage.JOIN_NODE__CLIENT_DEPENDENCY :
				return getClientDependencies();
			case UMLPackage.JOIN_NODE__NAMESPACE :
				if (resolve)
					return getNamespace();
				return basicGetNamespace();
			case UMLPackage.JOIN_NODE__NAME_EXPRESSION :
				if (resolve)
					return getNameExpression();
				return basicGetNameExpression();
			case UMLPackage.JOIN_NODE__IS_LEAF :
				return isLeaf()
					? Boolean.TRUE
					: Boolean.FALSE;
			case UMLPackage.JOIN_NODE__REDEFINED_ELEMENT :
				return getRedefinedElements();
			case UMLPackage.JOIN_NODE__REDEFINITION_CONTEXT :
				return getRedefinitionContexts();
			case UMLPackage.JOIN_NODE__IN_STRUCTURED_NODE :
				return getInStructuredNode();
			case UMLPackage.JOIN_NODE__ACTIVITY :
				return getActivity();
			case UMLPackage.JOIN_NODE__OUTGOING :
				return getOutgoings();
			case UMLPackage.JOIN_NODE__INCOMING :
				return getIncomings();
			case UMLPackage.JOIN_NODE__IN_PARTITION :
				return getInPartitions();
			case UMLPackage.JOIN_NODE__IN_INTERRUPTIBLE_REGION :
				return getInInterruptibleRegions();
			case UMLPackage.JOIN_NODE__IN_GROUP :
				return getInGroups();
			case UMLPackage.JOIN_NODE__REDEFINED_NODE :
				return getRedefinedNodes();
			case UMLPackage.JOIN_NODE__IS_COMBINE_DUPLICATE :
				return isCombineDuplicate()
					? Boolean.TRUE
					: Boolean.FALSE;
			case UMLPackage.JOIN_NODE__JOIN_SPEC :
				if (resolve)
					return getJoinSpec();
				return basicGetJoinSpec();
		}
		return eDynamicGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case UMLPackage.JOIN_NODE__EANNOTATIONS :
				getEAnnotations().clear();
				getEAnnotations().addAll((Collection) newValue);
				return;
			case UMLPackage.JOIN_NODE__OWNED_COMMENT :
				getOwnedComments().clear();
				getOwnedComments().addAll((Collection) newValue);
				return;
			case UMLPackage.JOIN_NODE__NAME :
				setName((String) newValue);
				return;
			case UMLPackage.JOIN_NODE__VISIBILITY :
				setVisibility((VisibilityKind) newValue);
				return;
			case UMLPackage.JOIN_NODE__CLIENT_DEPENDENCY :
				getClientDependencies().clear();
				getClientDependencies().addAll((Collection) newValue);
				return;
			case UMLPackage.JOIN_NODE__NAME_EXPRESSION :
				setNameExpression((StringExpression) newValue);
				return;
			case UMLPackage.JOIN_NODE__IS_LEAF :
				setIsLeaf(((Boolean) newValue).booleanValue());
				return;
			case UMLPackage.JOIN_NODE__IN_STRUCTURED_NODE :
				setInStructuredNode((StructuredActivityNode) newValue);
				return;
			case UMLPackage.JOIN_NODE__ACTIVITY :
				setActivity((Activity) newValue);
				return;
			case UMLPackage.JOIN_NODE__OUTGOING :
				getOutgoings().clear();
				getOutgoings().addAll((Collection) newValue);
				return;
			case UMLPackage.JOIN_NODE__INCOMING :
				getIncomings().clear();
				getIncomings().addAll((Collection) newValue);
				return;
			case UMLPackage.JOIN_NODE__IN_PARTITION :
				getInPartitions().clear();
				getInPartitions().addAll((Collection) newValue);
				return;
			case UMLPackage.JOIN_NODE__IN_INTERRUPTIBLE_REGION :
				getInInterruptibleRegions().clear();
				getInInterruptibleRegions().addAll((Collection) newValue);
				return;
			case UMLPackage.JOIN_NODE__REDEFINED_NODE :
				getRedefinedNodes().clear();
				getRedefinedNodes().addAll((Collection) newValue);
				return;
			case UMLPackage.JOIN_NODE__IS_COMBINE_DUPLICATE :
				setIsCombineDuplicate(((Boolean) newValue).booleanValue());
				return;
			case UMLPackage.JOIN_NODE__JOIN_SPEC :
				setJoinSpec((ValueSpecification) newValue);
				return;
		}
		eDynamicSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eUnset(int featureID) {
		switch (featureID) {
			case UMLPackage.JOIN_NODE__EANNOTATIONS :
				getEAnnotations().clear();
				return;
			case UMLPackage.JOIN_NODE__OWNED_COMMENT :
				getOwnedComments().clear();
				return;
			case UMLPackage.JOIN_NODE__NAME :
				unsetName();
				return;
			case UMLPackage.JOIN_NODE__VISIBILITY :
				unsetVisibility();
				return;
			case UMLPackage.JOIN_NODE__CLIENT_DEPENDENCY :
				getClientDependencies().clear();
				return;
			case UMLPackage.JOIN_NODE__NAME_EXPRESSION :
				setNameExpression((StringExpression) null);
				return;
			case UMLPackage.JOIN_NODE__IS_LEAF :
				setIsLeaf(IS_LEAF_EDEFAULT);
				return;
			case UMLPackage.JOIN_NODE__IN_STRUCTURED_NODE :
				setInStructuredNode((StructuredActivityNode) null);
				return;
			case UMLPackage.JOIN_NODE__ACTIVITY :
				setActivity((Activity) null);
				return;
			case UMLPackage.JOIN_NODE__OUTGOING :
				getOutgoings().clear();
				return;
			case UMLPackage.JOIN_NODE__INCOMING :
				getIncomings().clear();
				return;
			case UMLPackage.JOIN_NODE__IN_PARTITION :
				getInPartitions().clear();
				return;
			case UMLPackage.JOIN_NODE__IN_INTERRUPTIBLE_REGION :
				getInInterruptibleRegions().clear();
				return;
			case UMLPackage.JOIN_NODE__REDEFINED_NODE :
				getRedefinedNodes().clear();
				return;
			case UMLPackage.JOIN_NODE__IS_COMBINE_DUPLICATE :
				setIsCombineDuplicate(IS_COMBINE_DUPLICATE_EDEFAULT);
				return;
			case UMLPackage.JOIN_NODE__JOIN_SPEC :
				setJoinSpec((ValueSpecification) null);
				return;
		}
		eDynamicUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case UMLPackage.JOIN_NODE__EANNOTATIONS :
				EList eAnnotations = (EList) eVirtualGet(UMLPackage.JOIN_NODE__EANNOTATIONS);
				return eAnnotations != null && !eAnnotations.isEmpty();
			case UMLPackage.JOIN_NODE__OWNED_ELEMENT :
				return isSetOwnedElements();
			case UMLPackage.JOIN_NODE__OWNER :
				return isSetOwner();
			case UMLPackage.JOIN_NODE__OWNED_COMMENT :
				EList ownedComment = (EList) eVirtualGet(UMLPackage.JOIN_NODE__OWNED_COMMENT);
				return ownedComment != null && !ownedComment.isEmpty();
			case UMLPackage.JOIN_NODE__NAME :
				return isSetName();
			case UMLPackage.JOIN_NODE__VISIBILITY :
				return isSetVisibility();
			case UMLPackage.JOIN_NODE__QUALIFIED_NAME :
				return QUALIFIED_NAME_EDEFAULT == null
					? getQualifiedName() != null
					: !QUALIFIED_NAME_EDEFAULT.equals(getQualifiedName());
			case UMLPackage.JOIN_NODE__CLIENT_DEPENDENCY :
				EList clientDependency = (EList) eVirtualGet(UMLPackage.JOIN_NODE__CLIENT_DEPENDENCY);
				return clientDependency != null && !clientDependency.isEmpty();
			case UMLPackage.JOIN_NODE__NAMESPACE :
				return isSetNamespace();
			case UMLPackage.JOIN_NODE__NAME_EXPRESSION :
				return eVirtualGet(UMLPackage.JOIN_NODE__NAME_EXPRESSION) != null;
			case UMLPackage.JOIN_NODE__IS_LEAF :
				return ((eFlags & IS_LEAF_EFLAG) != 0) != IS_LEAF_EDEFAULT;
			case UMLPackage.JOIN_NODE__REDEFINED_ELEMENT :
				return isSetRedefinedElements();
			case UMLPackage.JOIN_NODE__REDEFINITION_CONTEXT :
				return isSetRedefinitionContexts();
			case UMLPackage.JOIN_NODE__IN_STRUCTURED_NODE :
				return getInStructuredNode() != null;
			case UMLPackage.JOIN_NODE__ACTIVITY :
				return getActivity() != null;
			case UMLPackage.JOIN_NODE__OUTGOING :
				EList outgoing = (EList) eVirtualGet(UMLPackage.JOIN_NODE__OUTGOING);
				return outgoing != null && !outgoing.isEmpty();
			case UMLPackage.JOIN_NODE__INCOMING :
				EList incoming = (EList) eVirtualGet(UMLPackage.JOIN_NODE__INCOMING);
				return incoming != null && !incoming.isEmpty();
			case UMLPackage.JOIN_NODE__IN_PARTITION :
				EList inPartition = (EList) eVirtualGet(UMLPackage.JOIN_NODE__IN_PARTITION);
				return inPartition != null && !inPartition.isEmpty();
			case UMLPackage.JOIN_NODE__IN_INTERRUPTIBLE_REGION :
				EList inInterruptibleRegion = (EList) eVirtualGet(UMLPackage.JOIN_NODE__IN_INTERRUPTIBLE_REGION);
				return inInterruptibleRegion != null
					&& !inInterruptibleRegion.isEmpty();
			case UMLPackage.JOIN_NODE__IN_GROUP :
				return isSetInGroups();
			case UMLPackage.JOIN_NODE__REDEFINED_NODE :
				EList redefinedNode = (EList) eVirtualGet(UMLPackage.JOIN_NODE__REDEFINED_NODE);
				return redefinedNode != null && !redefinedNode.isEmpty();
			case UMLPackage.JOIN_NODE__IS_COMBINE_DUPLICATE :
				return ((eFlags & IS_COMBINE_DUPLICATE_EFLAG) != 0) != IS_COMBINE_DUPLICATE_EDEFAULT;
			case UMLPackage.JOIN_NODE__JOIN_SPEC :
				return eVirtualGet(UMLPackage.JOIN_NODE__JOIN_SPEC) != 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(" (isCombineDuplicate: "); //$NON-NLS-1$
		result.append((eFlags & IS_COMBINE_DUPLICATE_EFLAG) != 0);
		result.append(')');
		return result.toString();
	}

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

} //JoinNodeImpl