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/*******************************************************************************
 * Copyright (c) 2006, 2009 IBM Corporation, Zeligsoft Inc., 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 - Initial API and implementation
 *   Zeligsoft - Bug 207365
 *******************************************************************************/
package org.eclipse.ocl.expressions.impl;

import java.util.Map;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.DiagnosticChain;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.ocl.expressions.ExpressionsPackage;
import org.eclipse.ocl.expressions.StringLiteralExp;
import org.eclipse.ocl.expressions.operations.StringLiteralExpOperations;
import org.eclipse.ocl.utilities.Visitor;

/**
 * 
 * An implementation of the model object 'String Literal Exp'.
 * 
 * 
 * The following features are implemented:
 * 

 *   {@link org.eclipse.ocl.expressions.impl.StringLiteralExpImpl#getStringSymbol String Symbol}
 * 
 * 
 *
 * @generated
 */
public class StringLiteralExpImpl
		extends PrimitiveLiteralExpImpl
		implements StringLiteralExp {

	/**
	 * The default value of the '{@link #getStringSymbol() String Symbol}' attribute.
	 * 
	 * 
	 * @see #getStringSymbol()
	 * @generated
	 * @ordered
	 */
	protected static final String STRING_SYMBOL_EDEFAULT = null;

	/**
	 * The cached value of the '{@link #getStringSymbol() String Symbol}' attribute.
	 * 
	 * 
	 * @see #getStringSymbol()
	 * @generated
	 * @ordered
	 */
	protected String stringSymbol = STRING_SYMBOL_EDEFAULT;

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

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	protected EClass eStaticClass() {
		return ExpressionsPackage.Literals.STRING_LITERAL_EXP;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public String getStringSymbol() {
		return stringSymbol;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public void setStringSymbol(String newStringSymbol) {
		String oldStringSymbol = stringSymbol;
		stringSymbol = newStringSymbol;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				ExpressionsPackage.STRING_LITERAL_EXP__STRING_SYMBOL,
				oldStringSymbol, stringSymbol));
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public boolean checkStringType(DiagnosticChain diagnostics,
			Map context) {
		return StringLiteralExpOperations.checkStringType(this, diagnostics,
			context);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case ExpressionsPackage.STRING_LITERAL_EXP__STRING_SYMBOL :
				return getStringSymbol();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case ExpressionsPackage.STRING_LITERAL_EXP__STRING_SYMBOL :
				setStringSymbol((String) newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.STRING_LITERAL_EXP__STRING_SYMBOL :
				setStringSymbol(STRING_SYMBOL_EDEFAULT);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.STRING_LITERAL_EXP__STRING_SYMBOL :
				return STRING_SYMBOL_EDEFAULT == null
					? stringSymbol != null
					: !STRING_SYMBOL_EDEFAULT.equals(stringSymbol);
		}
		return super.eIsSet(featureID);
	}

	/**
	 * 
	 * 
	 * @generated NOT
	 */
	@Override
	public String toString() {
		return super.toString();
	}

	/**
	 * @generated NOT
	 */
	@Override
	@SuppressWarnings("unchecked")
	public > T accept(U v) {
		return ((Visitor) v)
			.visitStringLiteralExp(this);
	}

} //StringLiteralExpImpl