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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.Expression;
import org.omg.bpmn.bpmn2.FlowNode;
import org.omg.bpmn.bpmn2.SequenceFlow;

/**
 * 
 * An implementation of the model object 'Sequence Flow'.
 * 
 * 
 * The following features are implemented:
 * 
 * 
 *   {@link org.omg.bpmn.bpmn2.impl.SequenceFlowImpl#getConditionExpression Condition Expression}
 *   {@link org.omg.bpmn.bpmn2.impl.SequenceFlowImpl#isIsImmediate Is Immediate}
 *   {@link org.omg.bpmn.bpmn2.impl.SequenceFlowImpl#getSourceRef Source Ref}
 *   {@link org.omg.bpmn.bpmn2.impl.SequenceFlowImpl#getTargetRef Target Ref}
 * 
 *
 * @generated
 */
public class SequenceFlowImpl extends FlowElementImpl implements SequenceFlow {
	/**
	 * The cached value of the '{@link #getConditionExpression() Condition Expression}' containment reference.
	 * 
	 * 
	 * @see #getConditionExpression()
	 * @generated
	 * @ordered
	 */
	protected Expression conditionExpression;

	/**
	 * The default value of the '{@link #isIsImmediate() Is Immediate}' attribute.
	 * 
	 * 
	 * @see #isIsImmediate()
	 * @generated
	 * @ordered
	 */
	protected static final boolean IS_IMMEDIATE_EDEFAULT = false;

	/**
	 * The cached value of the '{@link #isIsImmediate() Is Immediate}' attribute.
	 * 
	 * 
	 * @see #isIsImmediate()
	 * @generated
	 * @ordered
	 */
	protected boolean isImmediate = IS_IMMEDIATE_EDEFAULT;

	/**
	 * The cached value of the '{@link #getSourceRef() Source Ref}' reference.
	 * 
	 * 
	 * @see #getSourceRef()
	 * @generated
	 * @ordered
	 */
	protected FlowNode sourceRef;

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

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

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

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public Expression getConditionExpression() {
		return conditionExpression;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public NotificationChain basicSetConditionExpression(Expression newConditionExpression, NotificationChain msgs) {
		Expression oldConditionExpression = conditionExpression;
		conditionExpression = newConditionExpression;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, Bpmn2Package.SEQUENCE_FLOW__CONDITION_EXPRESSION, oldConditionExpression, newConditionExpression);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void setConditionExpression(Expression newConditionExpression) {
		if (newConditionExpression != conditionExpression) {
			NotificationChain msgs = null;
			if (conditionExpression != null)
				msgs = ((InternalEObject)conditionExpression).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - Bpmn2Package.SEQUENCE_FLOW__CONDITION_EXPRESSION, null, msgs);
			if (newConditionExpression != null)
				msgs = ((InternalEObject)newConditionExpression).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - Bpmn2Package.SEQUENCE_FLOW__CONDITION_EXPRESSION, null, msgs);
			msgs = basicSetConditionExpression(newConditionExpression, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, Bpmn2Package.SEQUENCE_FLOW__CONDITION_EXPRESSION, newConditionExpression, newConditionExpression));
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public boolean isIsImmediate() {
		return isImmediate;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void setIsImmediate(boolean newIsImmediate) {
		boolean oldIsImmediate = isImmediate;
		isImmediate = newIsImmediate;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, Bpmn2Package.SEQUENCE_FLOW__IS_IMMEDIATE, oldIsImmediate, isImmediate));
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public FlowNode getSourceRef() {
		return sourceRef;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public NotificationChain basicSetSourceRef(FlowNode newSourceRef, NotificationChain msgs) {
		FlowNode oldSourceRef = sourceRef;
		sourceRef = newSourceRef;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, Bpmn2Package.SEQUENCE_FLOW__SOURCE_REF, oldSourceRef, newSourceRef);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void setSourceRef(FlowNode newSourceRef) {
		if (newSourceRef != sourceRef) {
			NotificationChain msgs = null;
			if (sourceRef != null)
				msgs = ((InternalEObject)sourceRef).eInverseRemove(this, Bpmn2Package.FLOW_NODE__OUTGOING, FlowNode.class, msgs);
			if (newSourceRef != null)
				msgs = ((InternalEObject)newSourceRef).eInverseAdd(this, Bpmn2Package.FLOW_NODE__OUTGOING, FlowNode.class, msgs);
			msgs = basicSetSourceRef(newSourceRef, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, Bpmn2Package.SEQUENCE_FLOW__SOURCE_REF, newSourceRef, newSourceRef));
	}

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

	/**
	 * 
	 * 
	 * @generated
	 */
	public NotificationChain basicSetTargetRef(FlowNode newTargetRef, NotificationChain msgs) {
		FlowNode oldTargetRef = targetRef;
		targetRef = newTargetRef;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, Bpmn2Package.SEQUENCE_FLOW__TARGET_REF, oldTargetRef, newTargetRef);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void setTargetRef(FlowNode newTargetRef) {
		if (newTargetRef != targetRef) {
			NotificationChain msgs = null;
			if (targetRef != null)
				msgs = ((InternalEObject)targetRef).eInverseRemove(this, Bpmn2Package.FLOW_NODE__INCOMING, FlowNode.class, msgs);
			if (newTargetRef != null)
				msgs = ((InternalEObject)newTargetRef).eInverseAdd(this, Bpmn2Package.FLOW_NODE__INCOMING, FlowNode.class, msgs);
			msgs = basicSetTargetRef(newTargetRef, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, Bpmn2Package.SEQUENCE_FLOW__TARGET_REF, newTargetRef, newTargetRef));
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public NotificationChain eInverseAdd(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case Bpmn2Package.SEQUENCE_FLOW__SOURCE_REF:
				if (sourceRef != null)
					msgs = ((InternalEObject)sourceRef).eInverseRemove(this, Bpmn2Package.FLOW_NODE__OUTGOING, FlowNode.class, msgs);
				return basicSetSourceRef((FlowNode)otherEnd, msgs);
			case Bpmn2Package.SEQUENCE_FLOW__TARGET_REF:
				if (targetRef != null)
					msgs = ((InternalEObject)targetRef).eInverseRemove(this, Bpmn2Package.FLOW_NODE__INCOMING, FlowNode.class, msgs);
				return basicSetTargetRef((FlowNode)otherEnd, msgs);
		}
		return super.eInverseAdd(otherEnd, featureID, msgs);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case Bpmn2Package.SEQUENCE_FLOW__CONDITION_EXPRESSION:
				return basicSetConditionExpression(null, msgs);
			case Bpmn2Package.SEQUENCE_FLOW__SOURCE_REF:
				return basicSetSourceRef(null, msgs);
			case Bpmn2Package.SEQUENCE_FLOW__TARGET_REF:
				return basicSetTargetRef(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case Bpmn2Package.SEQUENCE_FLOW__CONDITION_EXPRESSION:
				return getConditionExpression();
			case Bpmn2Package.SEQUENCE_FLOW__IS_IMMEDIATE:
				return isIsImmediate();
			case Bpmn2Package.SEQUENCE_FLOW__SOURCE_REF:
				return getSourceRef();
			case Bpmn2Package.SEQUENCE_FLOW__TARGET_REF:
				return getTargetRef();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case Bpmn2Package.SEQUENCE_FLOW__CONDITION_EXPRESSION:
				setConditionExpression((Expression)newValue);
				return;
			case Bpmn2Package.SEQUENCE_FLOW__IS_IMMEDIATE:
				setIsImmediate((Boolean)newValue);
				return;
			case Bpmn2Package.SEQUENCE_FLOW__SOURCE_REF:
				setSourceRef((FlowNode)newValue);
				return;
			case Bpmn2Package.SEQUENCE_FLOW__TARGET_REF:
				setTargetRef((FlowNode)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case Bpmn2Package.SEQUENCE_FLOW__CONDITION_EXPRESSION:
				setConditionExpression((Expression)null);
				return;
			case Bpmn2Package.SEQUENCE_FLOW__IS_IMMEDIATE:
				setIsImmediate(IS_IMMEDIATE_EDEFAULT);
				return;
			case Bpmn2Package.SEQUENCE_FLOW__SOURCE_REF:
				setSourceRef((FlowNode)null);
				return;
			case Bpmn2Package.SEQUENCE_FLOW__TARGET_REF:
				setTargetRef((FlowNode)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case Bpmn2Package.SEQUENCE_FLOW__CONDITION_EXPRESSION:
				return conditionExpression != null;
			case Bpmn2Package.SEQUENCE_FLOW__IS_IMMEDIATE:
				return isImmediate != IS_IMMEDIATE_EDEFAULT;
			case Bpmn2Package.SEQUENCE_FLOW__SOURCE_REF:
				return sourceRef != null;
			case Bpmn2Package.SEQUENCE_FLOW__TARGET_REF:
				return targetRef != null;
		}
		return super.eIsSet(featureID);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public String toString() {
		if (eIsProxy()) return super.toString();

		StringBuilder result = new StringBuilder(super.toString());
		result.append(" (isImmediate: ");
		result.append(isImmediate);
		result.append(')');
		return result.toString();
	}

} //SequenceFlowImpl