org.eclipse.ocl.expressions.impl.VariableExpImpl Maven / Gradle / Ivy

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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
 * 
 * 
 *
 * $Id: VariableExpImpl.java,v 1.8 2009/01/23 17:16:04 cdamus Exp $
 */
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.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.ocl.expressions.ExpressionsPackage;
import org.eclipse.ocl.expressions.Variable;
import org.eclipse.ocl.expressions.VariableExp;
import org.eclipse.ocl.expressions.operations.VariableExpOperations;
import org.eclipse.ocl.utilities.Visitor;

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

 *   {@link org.eclipse.ocl.expressions.impl.VariableExpImpl#getReferredVariable Referred Variable}
 * 
 * 
 *
 * @generated
 */
public class VariableExpImpl
		extends OCLExpressionImpl
		implements VariableExp {

	/**
	 * The cached value of the '{@link #getReferredVariable() Referred Variable}' reference.
	 * 
	 * 
	 * @see #getReferredVariable()
	 * @generated
	 * @ordered
	 */
	protected Variable referredVariable;

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

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

	/**
	 * 
	 * 
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	public Variable getReferredVariable() {
		if (referredVariable != null && referredVariable.eIsProxy()) {
			InternalEObject oldReferredVariable = (InternalEObject) referredVariable;
			referredVariable = (Variable) eResolveProxy(oldReferredVariable);
			if (referredVariable != oldReferredVariable) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE,
						ExpressionsPackage.VARIABLE_EXP__REFERRED_VARIABLE,
						oldReferredVariable, referredVariable));
			}
		}
		return referredVariable;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public Variable basicGetReferredVariable() {
		return referredVariable;
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	public void setReferredVariable(Variable newReferredVariable) {
		Variable oldReferredVariable = referredVariable;
		referredVariable = newReferredVariable;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
				ExpressionsPackage.VARIABLE_EXP__REFERRED_VARIABLE,
				oldReferredVariable, referredVariable));
	}

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

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

	/**
	 * 
	 * 
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case ExpressionsPackage.VARIABLE_EXP__REFERRED_VARIABLE :
				setReferredVariable((Variable) newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.VARIABLE_EXP__REFERRED_VARIABLE :
				setReferredVariable((Variable) null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * 
	 * 
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case ExpressionsPackage.VARIABLE_EXP__REFERRED_VARIABLE :
				return referredVariable != null;
		}
		return super.eIsSet(featureID);
	}

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

} //VariableExpImpl