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/*
 * Copyright (c) 2012 - 2024 Data In Motion and others.
 * All rights reserved. 
 * 
 * This program and the accompanying materials are made
 * available under the terms of the Eclipse Public License 2.0
 * which is available at https://www.eclipse.org/legal/epl-2.0/
 * 
 * SPDX-License-Identifier: EPL-2.0
 * 
 * Contributors:
 *      Mark Hoffmann - initial API and implementation
 */
package org.omg.bpmn.bpmn2.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.EObjectEList;
import org.eclipse.emf.ecore.util.InternalEList;

import org.omg.bpmn.bpmn2.Assignment;
import org.omg.bpmn.bpmn2.Bpmn2Package;
import org.omg.bpmn.bpmn2.DataAssociation;
import org.omg.bpmn.bpmn2.FormalExpression;
import org.omg.bpmn.bpmn2.ItemAwareElement;

/**
 * 
 * An implementation of the model object 'Data Association'.
 * 
 * 
 * The following features are implemented:
 * 
 * 
 *   {@link org.omg.bpmn.bpmn2.impl.DataAssociationImpl#getSourceRef Source Ref}
 *   {@link org.omg.bpmn.bpmn2.impl.DataAssociationImpl#getTargetRef Target Ref}
 *   {@link org.omg.bpmn.bpmn2.impl.DataAssociationImpl#getTransformation Transformation}
 *   {@link org.omg.bpmn.bpmn2.impl.DataAssociationImpl#getAssignment Assignment}
 * 
 *
 * @generated
 */
public class DataAssociationImpl extends BaseElementImpl implements DataAssociation {
	/**
	 * The cached value of the '{@link #getSourceRef() Source Ref}' reference list.
	 * 
	 * 
	 * @see #getSourceRef()
	 * @generated
	 * @ordered
	 */
	protected EList sourceRef;

	/**
	 * The cached value of the '{@link #getTargetRef() Target Ref}' reference.
	 * 
	 * 
	 * @see #getTargetRef()
	 * @generated
	 * @ordered
	 */
	protected ItemAwareElement targetRef;

	/**
	 * The cached value of the '{@link #getTransformation() Transformation}' containment reference.
	 * 
	 * 
	 * @see #getTransformation()
	 * @generated
	 * @ordered
	 */
	protected FormalExpression transformation;

	/**
	 * The cached value of the '{@link #getAssignment() Assignment}' containment reference list.
	 * 
	 * 
	 * @see #getAssignment()
	 * @generated
	 * @ordered
	 */
	protected EList assignment;

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

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	protected EClass eStaticClass() {
		return Bpmn2Package.eINSTANCE.getDataAssociation();
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public EList getSourceRef() {
		if (sourceRef == null) {
			sourceRef = new EObjectEList(ItemAwareElement.class, this, Bpmn2Package.DATA_ASSOCIATION__SOURCE_REF);
		}
		return sourceRef;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public ItemAwareElement getTargetRef() {
		return targetRef;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void setTargetRef(ItemAwareElement newTargetRef) {
		ItemAwareElement oldTargetRef = targetRef;
		targetRef = newTargetRef;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, Bpmn2Package.DATA_ASSOCIATION__TARGET_REF, oldTargetRef, targetRef));
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public FormalExpression getTransformation() {
		return transformation;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public NotificationChain basicSetTransformation(FormalExpression newTransformation, NotificationChain msgs) {
		FormalExpression oldTransformation = transformation;
		transformation = newTransformation;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, Bpmn2Package.DATA_ASSOCIATION__TRANSFORMATION, oldTransformation, newTransformation);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void setTransformation(FormalExpression newTransformation) {
		if (newTransformation != transformation) {
			NotificationChain msgs = null;
			if (transformation != null)
				msgs = ((InternalEObject)transformation).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - Bpmn2Package.DATA_ASSOCIATION__TRANSFORMATION, null, msgs);
			if (newTransformation != null)
				msgs = ((InternalEObject)newTransformation).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - Bpmn2Package.DATA_ASSOCIATION__TRANSFORMATION, null, msgs);
			msgs = basicSetTransformation(newTransformation, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, Bpmn2Package.DATA_ASSOCIATION__TRANSFORMATION, newTransformation, newTransformation));
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public EList getAssignment() {
		if (assignment == null) {
			assignment = new EObjectContainmentEList(Assignment.class, this, Bpmn2Package.DATA_ASSOCIATION__ASSIGNMENT);
		}
		return assignment;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case Bpmn2Package.DATA_ASSOCIATION__TRANSFORMATION:
				return basicSetTransformation(null, msgs);
			case Bpmn2Package.DATA_ASSOCIATION__ASSIGNMENT:
				return ((InternalEList)getAssignment()).basicRemove(otherEnd, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case Bpmn2Package.DATA_ASSOCIATION__SOURCE_REF:
				return getSourceRef();
			case Bpmn2Package.DATA_ASSOCIATION__TARGET_REF:
				return getTargetRef();
			case Bpmn2Package.DATA_ASSOCIATION__TRANSFORMATION:
				return getTransformation();
			case Bpmn2Package.DATA_ASSOCIATION__ASSIGNMENT:
				return getAssignment();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case Bpmn2Package.DATA_ASSOCIATION__SOURCE_REF:
				getSourceRef().clear();
				getSourceRef().addAll((Collection)newValue);
				return;
			case Bpmn2Package.DATA_ASSOCIATION__TARGET_REF:
				setTargetRef((ItemAwareElement)newValue);
				return;
			case Bpmn2Package.DATA_ASSOCIATION__TRANSFORMATION:
				setTransformation((FormalExpression)newValue);
				return;
			case Bpmn2Package.DATA_ASSOCIATION__ASSIGNMENT:
				getAssignment().clear();
				getAssignment().addAll((Collection)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case Bpmn2Package.DATA_ASSOCIATION__SOURCE_REF:
				getSourceRef().clear();
				return;
			case Bpmn2Package.DATA_ASSOCIATION__TARGET_REF:
				setTargetRef((ItemAwareElement)null);
				return;
			case Bpmn2Package.DATA_ASSOCIATION__TRANSFORMATION:
				setTransformation((FormalExpression)null);
				return;
			case Bpmn2Package.DATA_ASSOCIATION__ASSIGNMENT:
				getAssignment().clear();
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case Bpmn2Package.DATA_ASSOCIATION__SOURCE_REF:
				return sourceRef != null && !sourceRef.isEmpty();
			case Bpmn2Package.DATA_ASSOCIATION__TARGET_REF:
				return targetRef != null;
			case Bpmn2Package.DATA_ASSOCIATION__TRANSFORMATION:
				return transformation != null;
			case Bpmn2Package.DATA_ASSOCIATION__ASSIGNMENT:
				return assignment != null && !assignment.isEmpty();
		}
		return super.eIsSet(featureID);
	}

} //DataAssociationImpl