/**
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright (C) 2007 Matthias Braeuer (braeuer.matthias@web.de). *
* All rights reserved. *
* *
* This work was done as a project at the Chair for Software Technology, *
* Dresden University Of Technology, Germany (http://st.inf.tu-dresden.de). *
* It is understood that any modification not identified as such is not *
* covered by the preceding statement. *
* *
* This work is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Library General Public License as published *
* by the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This work is distributed in the hope that it will be useful, but WITHOUT *
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or *
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public *
* License for more details. *
* *
* You should have received a copy of the GNU Library General Public License *
* along with this library; if not, you can view it online at *
* http://www.fsf.org/licensing/licenses/gpl.html. *
* *
* To submit a bug report, send a comment, or get the latest news on this *
* project, please visit the website: http://dresden-ocl.sourceforge.net. *
* For more information on OCL and related projects visit the OCL Portal: *
* http://st.inf.tu-dresden.de/ocl *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* $Id$
*/
package org.dresdenocl.essentialocl.expressions.impl;
import org.apache.log4j.Logger;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.dresdenocl.essentialocl.expressions.Variable;
import org.dresdenocl.essentialocl.expressions.VariableExp;
import org.dresdenocl.essentialocl.expressions.WellformednessException;
import org.dresdenocl.pivotmodel.Type;
/**
* <!-- begin-user-doc --> An implementation of the model object '<em><b>Variable Exp</b></em>'.
* <!-- end-user-doc -->
* <p>
* The following features are implemented:
* <ul>
* <li>{@link org.dresdenocl.essentialocl.expressions.impl.VariableExpImpl#getReferredVariable <em>Referred Variable</em>}</li>
* </ul>
* </p>
*
* @generated
*/
public class VariableExpImpl extends OclExpressionImpl implements VariableExp {
/**
* Logger for this class
*/
private static final Logger logger = Logger
.getLogger(VariableExpImpl.class);
/**
* The cached value of the '{@link #getReferredVariable() <em>Referred Variable</em>}' reference.
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @see #getReferredVariable()
* @generated
* @ordered
*/
protected Variable referredVariable;
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
protected VariableExpImpl() {
super();
}
/**
* Overridden to determine the type of the <code>VariableExp</code>
* according to the OCL specification (Section 8.3):
*
* <p>
* The type of a VariableExp is the type of the variable to which it refers.
*
* <pre>
* context VariableExp
* inv: type = referredVariable.type
* </pre>
*
* If the {@link #getReferredVariable() referred variable} of this
* <code>VariableExp</code> is <code>null</code>, a
* {@link WellformednessException} is thrown.
*
* @see org.dresdenocl.pivotmodel.impl.TypedElementImpl#getType()
*/
@Override
protected Type evaluateType() {
if (logger.isDebugEnabled()) {
logger.debug("evaluateType() - enter"); //$NON-NLS-1$
}
if (referredVariable == null) {
throw new WellformednessException(this,
"The referred variable of a VariableExp must not be null."); //$NON-NLS-1$
}
Type type = getOclType(referredVariable.getType());
if (logger.isDebugEnabled()) {
logger.debug("evaluateType() - exit - return value=" + type); //$NON-NLS-1$
}
return type;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public Variable getReferredVariable() {
return referredVariable;
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
public void setReferredVariable(Variable newReferredVariable) {
Variable oldReferredVariable = referredVariable;
referredVariable = newReferredVariable;
if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET,
ExpressionsPackageImpl.VARIABLE_EXP__REFERRED_VARIABLE,
oldReferredVariable, referredVariable));
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public Object eGet(int featureID, boolean resolve, boolean coreType) {
switch (featureID) {
case ExpressionsPackageImpl.VARIABLE_EXP__REFERRED_VARIABLE:
return getReferredVariable();
}
return super.eGet(featureID, resolve, coreType);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public void eSet(int featureID, Object newValue) {
switch (featureID) {
case ExpressionsPackageImpl.VARIABLE_EXP__REFERRED_VARIABLE:
setReferredVariable((Variable) newValue);
return;
}
super.eSet(featureID, newValue);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public void eUnset(int featureID) {
switch (featureID) {
case ExpressionsPackageImpl.VARIABLE_EXP__REFERRED_VARIABLE:
setReferredVariable((Variable) null);
return;
}
super.eUnset(featureID);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
public boolean eIsSet(int featureID) {
switch (featureID) {
case ExpressionsPackageImpl.VARIABLE_EXP__REFERRED_VARIABLE:
return referredVariable != null;
}
return super.eIsSet(featureID);
}
/**
* <!-- begin-user-doc --> <!-- end-user-doc -->
* @generated
*/
@Override
protected EClass eStaticClass() {
return ExpressionsPackageImpl.Literals.VARIABLE_EXP;
}
} // VariableExpImpl