/*******************************************************************************
 * Copyright (c) 2004, 2005 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
 *******************************************************************************/
package org.eclipse.jem.internal.instantiation.impl;
/*
 *  $RCSfile: PTBooleanLiteralImpl.java,v $
 *  $Revision: 1.4 $  $Date: 2005/09/15 21:02:19 $ 
 */
import org.eclipse.emf.common.notify.Notification;

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

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

import org.eclipse.jem.internal.instantiation.*;
import org.eclipse.jem.internal.instantiation.PTBooleanLiteral;
import org.eclipse.jem.internal.instantiation.InstantiationPackage;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Boolean Literal</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.jem.internal.instantiation.impl.PTBooleanLiteralImpl#isBooleanValue <em>Boolean Value</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class PTBooleanLiteralImpl extends PTExpressionImpl implements PTBooleanLiteral {
	/**
	 * The default value of the '{@link #isBooleanValue() <em>Boolean Value</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #isBooleanValue()
	 * @generated
	 * @ordered
	 */
	protected static final boolean BOOLEAN_VALUE_EDEFAULT = false;

	/**
	 * The flag representing the value of the '{@link #isBooleanValue() <em>Boolean Value</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #isBooleanValue()
	 * @generated
	 * @ordered
	 */
	protected static final int BOOLEAN_VALUE_EFLAG = 1 << 8;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean isBooleanValue() {
		return (eFlags & BOOLEAN_VALUE_EFLAG) != 0;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setBooleanValue(boolean newBooleanValue) {
		boolean oldBooleanValue = (eFlags & BOOLEAN_VALUE_EFLAG) != 0;
		if (newBooleanValue) eFlags |= BOOLEAN_VALUE_EFLAG; else eFlags &= ~BOOLEAN_VALUE_EFLAG;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, InstantiationPackage.PT_BOOLEAN_LITERAL__BOOLEAN_VALUE, oldBooleanValue, newBooleanValue));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Object eGet(EStructuralFeature eFeature, boolean resolve) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case InstantiationPackage.PT_BOOLEAN_LITERAL__BOOLEAN_VALUE:
				return isBooleanValue() ? Boolean.TRUE : Boolean.FALSE;
		}
		return eDynamicGet(eFeature, resolve);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eSet(EStructuralFeature eFeature, Object newValue) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case InstantiationPackage.PT_BOOLEAN_LITERAL__BOOLEAN_VALUE:
				setBooleanValue(((Boolean)newValue).booleanValue());
				return;
		}
		eDynamicSet(eFeature, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void eUnset(EStructuralFeature eFeature) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case InstantiationPackage.PT_BOOLEAN_LITERAL__BOOLEAN_VALUE:
				setBooleanValue(BOOLEAN_VALUE_EDEFAULT);
				return;
		}
		eDynamicUnset(eFeature);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public boolean eIsSet(EStructuralFeature eFeature) {
		switch (eDerivedStructuralFeatureID(eFeature)) {
			case InstantiationPackage.PT_BOOLEAN_LITERAL__BOOLEAN_VALUE:
				return ((eFlags & BOOLEAN_VALUE_EFLAG) != 0) != BOOLEAN_VALUE_EDEFAULT;
		}
		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) {
		visitor.visit(this);
		visitor.endVisit(this);
	}

} //BooleanLiteralImpl