/*******************************************************************************
 * Copyright (c) 2009, 2011 SAP AG 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:
 *     SAP AG - initial API and implementation
 ******************************************************************************
 * $Id: TernaryImpl.java,v 1.2 2011/03/05 21:52:04 auhl Exp $
 */
package dataaccess.expressions.impl;

import dataaccess.expressions.Expression;
import dataaccess.expressions.ExpressionsPackage;
import dataaccess.expressions.Ternary;

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;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Ternary</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link dataaccess.expressions.impl.TernaryImpl#getFalseExpr <em>False Expr</em>}</li>
 *   <li>{@link dataaccess.expressions.impl.TernaryImpl#getTrueExpr <em>True Expr</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class TernaryImpl extends ConditionalExpressionImpl implements Ternary {
	/**
	 * The cached value of the '{@link #getFalseExpr() <em>False Expr</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getFalseExpr()
	 * @generated
	 * @ordered
	 */
	protected Expression falseExpr;

	/**
	 * The cached value of the '{@link #getTrueExpr() <em>True Expr</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getTrueExpr()
	 * @generated
	 * @ordered
	 */
	protected Expression trueExpr;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Expression getFalseExpr() {
		if (falseExpr != null && falseExpr.eIsProxy()) {
			InternalEObject oldFalseExpr = (InternalEObject)falseExpr;
			falseExpr = (Expression)eResolveProxy(oldFalseExpr);
			if (falseExpr != oldFalseExpr) {
				InternalEObject newFalseExpr = (InternalEObject)falseExpr;
				NotificationChain msgs = oldFalseExpr.eInverseRemove(this, EOPPOSITE_FEATURE_BASE - ExpressionsPackage.TERNARY__FALSE_EXPR, null, null);
				if (newFalseExpr.eInternalContainer() == null) {
					msgs = newFalseExpr.eInverseAdd(this, EOPPOSITE_FEATURE_BASE - ExpressionsPackage.TERNARY__FALSE_EXPR, null, msgs);
				}
				if (msgs != null) msgs.dispatch();
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, ExpressionsPackage.TERNARY__FALSE_EXPR, oldFalseExpr, falseExpr));
			}
		}
		return falseExpr;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Expression basicGetFalseExpr() {
		return falseExpr;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetFalseExpr(Expression newFalseExpr, NotificationChain msgs) {
		Expression oldFalseExpr = falseExpr;
		falseExpr = newFalseExpr;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, ExpressionsPackage.TERNARY__FALSE_EXPR, oldFalseExpr, newFalseExpr);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setFalseExpr(Expression newFalseExpr) {
		if (newFalseExpr != falseExpr) {
			NotificationChain msgs = null;
			if (falseExpr != null)
				msgs = ((InternalEObject)falseExpr).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - ExpressionsPackage.TERNARY__FALSE_EXPR, null, msgs);
			if (newFalseExpr != null)
				msgs = ((InternalEObject)newFalseExpr).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - ExpressionsPackage.TERNARY__FALSE_EXPR, null, msgs);
			msgs = basicSetFalseExpr(newFalseExpr, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ExpressionsPackage.TERNARY__FALSE_EXPR, newFalseExpr, newFalseExpr));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Expression getTrueExpr() {
		if (trueExpr != null && trueExpr.eIsProxy()) {
			InternalEObject oldTrueExpr = (InternalEObject)trueExpr;
			trueExpr = (Expression)eResolveProxy(oldTrueExpr);
			if (trueExpr != oldTrueExpr) {
				InternalEObject newTrueExpr = (InternalEObject)trueExpr;
				NotificationChain msgs = oldTrueExpr.eInverseRemove(this, EOPPOSITE_FEATURE_BASE - ExpressionsPackage.TERNARY__TRUE_EXPR, null, null);
				if (newTrueExpr.eInternalContainer() == null) {
					msgs = newTrueExpr.eInverseAdd(this, EOPPOSITE_FEATURE_BASE - ExpressionsPackage.TERNARY__TRUE_EXPR, null, msgs);
				}
				if (msgs != null) msgs.dispatch();
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, ExpressionsPackage.TERNARY__TRUE_EXPR, oldTrueExpr, trueExpr));
			}
		}
		return trueExpr;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Expression basicGetTrueExpr() {
		return trueExpr;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetTrueExpr(Expression newTrueExpr, NotificationChain msgs) {
		Expression oldTrueExpr = trueExpr;
		trueExpr = newTrueExpr;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, ExpressionsPackage.TERNARY__TRUE_EXPR, oldTrueExpr, newTrueExpr);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setTrueExpr(Expression newTrueExpr) {
		if (newTrueExpr != trueExpr) {
			NotificationChain msgs = null;
			if (trueExpr != null)
				msgs = ((InternalEObject)trueExpr).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - ExpressionsPackage.TERNARY__TRUE_EXPR, null, msgs);
			if (newTrueExpr != null)
				msgs = ((InternalEObject)newTrueExpr).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - ExpressionsPackage.TERNARY__TRUE_EXPR, null, msgs);
			msgs = basicSetTrueExpr(newTrueExpr, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, ExpressionsPackage.TERNARY__TRUE_EXPR, newTrueExpr, newTrueExpr));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
		switch (featureID) {
			case ExpressionsPackage.TERNARY__FALSE_EXPR:
				return basicSetFalseExpr(null, msgs);
			case ExpressionsPackage.TERNARY__TRUE_EXPR:
				return basicSetTrueExpr(null, msgs);
		}
		return super.eInverseRemove(otherEnd, featureID, msgs);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case ExpressionsPackage.TERNARY__FALSE_EXPR:
				if (resolve) return getFalseExpr();
				return basicGetFalseExpr();
			case ExpressionsPackage.TERNARY__TRUE_EXPR:
				if (resolve) return getTrueExpr();
				return basicGetTrueExpr();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case ExpressionsPackage.TERNARY__FALSE_EXPR:
				setFalseExpr((Expression)newValue);
				return;
			case ExpressionsPackage.TERNARY__TRUE_EXPR:
				setTrueExpr((Expression)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.TERNARY__FALSE_EXPR:
				setFalseExpr((Expression)null);
				return;
			case ExpressionsPackage.TERNARY__TRUE_EXPR:
				setTrueExpr((Expression)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.TERNARY__FALSE_EXPR:
				return falseExpr != null;
			case ExpressionsPackage.TERNARY__TRUE_EXPR:
				return trueExpr != null;
		}
		return super.eIsSet(featureID);
	}

} //TernaryImpl