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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 org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;

import org.eclipse.emf.ecore.impl.ENotificationImpl;

import org.omg.bpmn.bpmn2.Bpmn2Package;
import org.omg.bpmn.bpmn2.DataObject;
import org.omg.bpmn.bpmn2.DataObjectReference;
import org.omg.bpmn.bpmn2.DataState;
import org.omg.bpmn.bpmn2.ItemAwareElement;
import org.omg.bpmn.bpmn2.ItemDefinition;

/**
 * 
 * An implementation of the model object 'Data Object Reference'.
 * 
 * 
 * The following features are implemented:
 * 
 * 
 *   {@link org.omg.bpmn.bpmn2.impl.DataObjectReferenceImpl#getDataState Data State}
 *   {@link org.omg.bpmn.bpmn2.impl.DataObjectReferenceImpl#getItemSubjectRef Item Subject Ref}
 *   {@link org.omg.bpmn.bpmn2.impl.DataObjectReferenceImpl#getDataObjectRef Data Object Ref}
 * 
 *
 * @generated
 */
public class DataObjectReferenceImpl extends FlowElementImpl implements DataObjectReference {
	/**
	 * The cached value of the '{@link #getDataState() Data State}' containment reference.
	 * 
	 * 
	 * @see #getDataState()
	 * @generated
	 * @ordered
	 */
	protected DataState dataState;

	/**
	 * The cached value of the '{@link #getItemSubjectRef() Item Subject Ref}' reference.
	 * 
	 * 
	 * @see #getItemSubjectRef()
	 * @generated
	 * @ordered
	 */
	protected ItemDefinition itemSubjectRef;

	/**
	 * The cached value of the '{@link #getDataObjectRef() Data Object Ref}' reference.
	 * 
	 * 
	 * @see #getDataObjectRef()
	 * @generated
	 * @ordered
	 */
	protected DataObject dataObjectRef;

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

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

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public DataState getDataState() {
		return dataState;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public NotificationChain basicSetDataState(DataState newDataState, NotificationChain msgs) {
		DataState oldDataState = dataState;
		dataState = newDataState;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_STATE, oldDataState, newDataState);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void setDataState(DataState newDataState) {
		if (newDataState != dataState) {
			NotificationChain msgs = null;
			if (dataState != null)
				msgs = ((InternalEObject)dataState).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_STATE, null, msgs);
			if (newDataState != null)
				msgs = ((InternalEObject)newDataState).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_STATE, null, msgs);
			msgs = basicSetDataState(newDataState, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_STATE, newDataState, newDataState));
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public ItemDefinition getItemSubjectRef() {
		if (itemSubjectRef != null && itemSubjectRef.eIsProxy()) {
			InternalEObject oldItemSubjectRef = (InternalEObject)itemSubjectRef;
			itemSubjectRef = (ItemDefinition)eResolveProxy(oldItemSubjectRef);
			if (itemSubjectRef != oldItemSubjectRef) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, Bpmn2Package.DATA_OBJECT_REFERENCE__ITEM_SUBJECT_REF, oldItemSubjectRef, itemSubjectRef));
			}
		}
		return itemSubjectRef;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public ItemDefinition basicGetItemSubjectRef() {
		return itemSubjectRef;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void setItemSubjectRef(ItemDefinition newItemSubjectRef) {
		ItemDefinition oldItemSubjectRef = itemSubjectRef;
		itemSubjectRef = newItemSubjectRef;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, Bpmn2Package.DATA_OBJECT_REFERENCE__ITEM_SUBJECT_REF, oldItemSubjectRef, itemSubjectRef));
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public DataObject getDataObjectRef() {
		return dataObjectRef;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void setDataObjectRef(DataObject newDataObjectRef) {
		DataObject oldDataObjectRef = dataObjectRef;
		dataObjectRef = newDataObjectRef;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_OBJECT_REF, oldDataObjectRef, dataObjectRef));
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_STATE:
				return basicSetDataState(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_STATE:
				return getDataState();
			case Bpmn2Package.DATA_OBJECT_REFERENCE__ITEM_SUBJECT_REF:
				if (resolve) return getItemSubjectRef();
				return basicGetItemSubjectRef();
			case Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_OBJECT_REF:
				return getDataObjectRef();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_STATE:
				setDataState((DataState)newValue);
				return;
			case Bpmn2Package.DATA_OBJECT_REFERENCE__ITEM_SUBJECT_REF:
				setItemSubjectRef((ItemDefinition)newValue);
				return;
			case Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_OBJECT_REF:
				setDataObjectRef((DataObject)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_STATE:
				setDataState((DataState)null);
				return;
			case Bpmn2Package.DATA_OBJECT_REFERENCE__ITEM_SUBJECT_REF:
				setItemSubjectRef((ItemDefinition)null);
				return;
			case Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_OBJECT_REF:
				setDataObjectRef((DataObject)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_STATE:
				return dataState != null;
			case Bpmn2Package.DATA_OBJECT_REFERENCE__ITEM_SUBJECT_REF:
				return itemSubjectRef != null;
			case Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_OBJECT_REF:
				return dataObjectRef != null;
		}
		return super.eIsSet(featureID);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public int eBaseStructuralFeatureID(int derivedFeatureID, Class baseClass) {
		if (baseClass == ItemAwareElement.class) {
			switch (derivedFeatureID) {
				case Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_STATE: return Bpmn2Package.ITEM_AWARE_ELEMENT__DATA_STATE;
				case Bpmn2Package.DATA_OBJECT_REFERENCE__ITEM_SUBJECT_REF: return Bpmn2Package.ITEM_AWARE_ELEMENT__ITEM_SUBJECT_REF;
				default: return -1;
			}
		}
		return super.eBaseStructuralFeatureID(derivedFeatureID, baseClass);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public int eDerivedStructuralFeatureID(int baseFeatureID, Class baseClass) {
		if (baseClass == ItemAwareElement.class) {
			switch (baseFeatureID) {
				case Bpmn2Package.ITEM_AWARE_ELEMENT__DATA_STATE: return Bpmn2Package.DATA_OBJECT_REFERENCE__DATA_STATE;
				case Bpmn2Package.ITEM_AWARE_ELEMENT__ITEM_SUBJECT_REF: return Bpmn2Package.DATA_OBJECT_REFERENCE__ITEM_SUBJECT_REF;
				default: return -1;
			}
		}
		return super.eDerivedStructuralFeatureID(baseFeatureID, baseClass);
	}

} //DataObjectReferenceImpl