package org.eclipse.jem.internal.instantiation.impl;
/*******************************************************************************
 * Copyright (c)  2004 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 Corporation - initial API and implementation
 *******************************************************************************/
/*
 *  $RCSfile: PTInstanceofImpl.java,v $
 *  $Revision: 1.2 $  $Date: 2005/02/15 22:36:09 $ 
 */
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.EStructuralFeature;
import org.eclipse.emf.ecore.InternalEObject;

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

import org.eclipse.jem.internal.instantiation.*;
import org.eclipse.jem.internal.instantiation.PTExpression;
import org.eclipse.jem.internal.instantiation.PTInstanceof;
import org.eclipse.jem.internal.instantiation.InstantiationPackage;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Instanceof</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.jem.internal.instantiation.impl.PTInstanceofImpl#getOperand <em>Operand</em>}</li>
 *   <li>{@link org.eclipse.jem.internal.instantiation.impl.PTInstanceofImpl#getType <em>Type</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class PTInstanceofImpl extends PTExpressionImpl implements PTInstanceof {
	/**
	 * The cached value of the '{@link #getOperand() <em>Operand</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getOperand()
	 * @generated
	 * @ordered
	 */
	protected PTExpression operand = null;

	/**
	 * The default value of the '{@link #getType() <em>Type</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getType()
	 * @generated
	 * @ordered
	 */
	protected static final String TYPE_EDEFAULT = null;

	/**
	 * The cached value of the '{@link #getType() <em>Type</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getType()
	 * @generated
	 * @ordered
	 */
	protected String type = TYPE_EDEFAULT;

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected EClass eStaticClass() {
		return InstantiationPackage.eINSTANCE.getPTInstanceof();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public PTExpression getOperand() {
		return operand;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetOperand(PTExpression newOperand, NotificationChain msgs) {
		PTExpression oldOperand = operand;
		operand = newOperand;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, InstantiationPackage.PT_INSTANCEOF__OPERAND, oldOperand, newOperand);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setOperand(PTExpression newOperand) {
		if (newOperand != operand) {
			NotificationChain msgs = null;
			if (operand != null)
				msgs = ((InternalEObject)operand).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - InstantiationPackage.PT_INSTANCEOF__OPERAND, null, msgs);
			if (newOperand != null)
				msgs = ((InternalEObject)newOperand).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - InstantiationPackage.PT_INSTANCEOF__OPERAND, null, msgs);
			msgs = basicSetOperand(newOperand, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, InstantiationPackage.PT_INSTANCEOF__OPERAND, newOperand, newOperand));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public String getType() {
		return type;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setType(String newType) {
		String oldType = type;
		type = newType;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, InstantiationPackage.PT_INSTANCEOF__TYPE, oldType, type));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, Class baseClass, NotificationChain msgs) {
		if (featureID >= 0) {
			switch (eDerivedStructuralFeatureID(featureID, baseClass)) {
				case InstantiationPackage.PT_INSTANCEOF__OPERAND:
					return basicSetOperand(null, msgs);
				default:
					return eDynamicInverseRemove(otherEnd, featureID, baseClass, msgs);
			}
		}
		return eBasicSetContainer(null, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Object eGet(EStructuralFeature eFeature, boolean resolve) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case InstantiationPackage.PT_INSTANCEOF__OPERAND:
				return getOperand();
			case InstantiationPackage.PT_INSTANCEOF__TYPE:
				return getType();
		}
		return eDynamicGet(eFeature, resolve);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eSet(EStructuralFeature eFeature, Object newValue) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case InstantiationPackage.PT_INSTANCEOF__OPERAND:
				setOperand((PTExpression)newValue);
				return;
			case InstantiationPackage.PT_INSTANCEOF__TYPE:
				setType((String)newValue);
				return;
		}
		eDynamicSet(eFeature, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eUnset(EStructuralFeature eFeature) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case InstantiationPackage.PT_INSTANCEOF__OPERAND:
				setOperand((PTExpression)null);
				return;
			case InstantiationPackage.PT_INSTANCEOF__TYPE:
				setType(TYPE_EDEFAULT);
				return;
		}
		eDynamicUnset(eFeature);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean eIsSet(EStructuralFeature eFeature) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case InstantiationPackage.PT_INSTANCEOF__OPERAND:
				return operand != null;
			case InstantiationPackage.PT_INSTANCEOF__TYPE:
				return TYPE_EDEFAULT == null ? type != null : !TYPE_EDEFAULT.equals(type);
		}
		return eDynamicIsSet(eFeature);
	}

	public String toString() {
		return super.toString();	// Really want toString to be final at PTExpression, but EMF doesn't allow it.
	}

	/*
	 *  (non-Javadoc)
	 * @see org.eclipse.jem.internal.instantiation.impl.ExpressionImpl#accept0(org.eclipse.jem.internal.instantiation.ParseVisitor)
	 */
	protected void accept0(ParseVisitor visitor) {
		boolean visitChildren = visitor.visit(this);
		if (visitChildren) {
			// visit children in normal left to right reading order
			acceptChild(visitor, getOperand());
		}
		visitor.endVisit(this);
	}

} //InstanceofImpl