/*******************************************************************************
 * Copyright (c) 2013, 2019 CEA LIST and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v20.html
 * 
 * Contributors:
 *   E.D.Willink(CEA LIST) - Initial API and implementation
 *******************************************************************************/
package org.eclipse.ocl.examples.codegen.cgmodel.impl;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.ocl.examples.codegen.cgmodel.CGElementId;
import org.eclipse.ocl.examples.codegen.cgmodel.CGModelPackage;
import org.eclipse.ocl.examples.codegen.cgmodel.CGValuedElement;
import org.eclipse.ocl.examples.codegen.cgmodel.util.CGModelVisitor;
import org.eclipse.ocl.pivot.ids.ElementId;
import org.eclipse.ocl.pivot.utilities.ClassUtil;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>CG Element Id</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * </p>
 * <ul>
 *   <li>{@link org.eclipse.ocl.examples.codegen.cgmodel.impl.CGElementIdImpl#getElementId <em>Element Id</em>}</li>
 * </ul>
 *
 * @generated
 */
public class CGElementIdImpl extends CGConstantImpl implements CGElementId {
	/**
	 * The number of structural features of the '<em>CG Element Id</em>' class.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 * @ordered
	 */
	public static final int CG_ELEMENT_ID_FEATURE_COUNT = CGConstantImpl.CG_CONSTANT_FEATURE_COUNT + 1;

	/**
	 * The default value of the '{@link #getElementId() <em>Element Id</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getElementId()
	 * @generated
	 * @ordered
	 */
	protected static final ElementId ELEMENT_ID_EDEFAULT = null;

	/**
	 * The cached value of the '{@link #getElementId() <em>Element Id</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getElementId()
	 * @generated
	 * @ordered
	 */
	protected ElementId elementId = ELEMENT_ID_EDEFAULT;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public ElementId getElementId() {
		return elementId;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void setElementId(ElementId newElementId) {
		ElementId oldElementId = elementId;
		elementId = newElementId;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, 6, oldElementId, elementId));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated NOT
	 */
	@Override
	public String toString() {
		return super.toString();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case 6:
				return getElementId();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case 6:
				setElementId((ElementId)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case 6:
				setElementId(ELEMENT_ID_EDEFAULT);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case 6:
				return ELEMENT_ID_EDEFAULT == null ? elementId != null : !ELEMENT_ID_EDEFAULT.equals(elementId);
		}
		return super.eIsSet(featureID);
	}

	/**
	 * {@inheritDoc}
	 * @generated
	 */
	@Override
	public <R> R accept(@NonNull CGModelVisitor<R> visitor) {
		return visitor.visitCGElementId(this);
	}

	/**
	 * {@inheritDoc}
	 * @generated
	 */
	@Override
	public @NonNull Object getConstantValue() {
		return ClassUtil.nonNullState(elementId);
	}

	/**
	 * {@inheritDoc}
	 * @generated
	 */
	@Override
	public boolean isCommonable() {
		return true;
	}

	/**
	 * {@inheritDoc}
	 * @generated
	 */
	@Override
	public boolean isEcore() {
		return false;
	}

	/**
	 * {@inheritDoc}
	 * @generated
	 */
	@Override
	public @Nullable Boolean isEquivalentToInternal(@NonNull CGValuedElement thatValue) {
		if (!thatValue.isNonInvalid()) {
			return null;
		}
		CGValuedElement value = thatValue.getNamedValue();
		if (this == value) {
			return Boolean.TRUE;
		}
		if (!value.isConstant()) {
			return null;
		}
		else if (value instanceof CGElementId) {
			return getASTypeId() == ((CGElementId)thatValue).getASTypeId();
		}
		else {
			return Boolean.FALSE;
		}
	}

	/**
	 * {@inheritDoc}
	 * @generated
	 */
	@Override
	public boolean isUnboxed() {
		return false;
	}

	/**
	 * {@inheritDoc}
	 * @generated
	 */
	@Override
	public boolean isUncommonable() {
		return false;
	}

} //CGElementIdImpl