VariableImpl.java

/**
 */
package org.erlide.erlang.impl;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.erlide.erlang.ErlangPackage;
import org.erlide.erlang.Expression;
import org.erlide.erlang.Variable;

/**
 * <!-- begin-user-doc --> An implementation of the model object '
 * <em><b>Variable</b></em>'. <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * </p>
 * <ul>
 * <li>{@link org.erlide.erlang.impl.VariableImpl#getValue <em>Value</em>}</li>
 * </ul>
 *
 * @generated
 */
public class VariableImpl extends ExpressionImpl implements Variable {
    /**
     * The cached value of the '{@link #getValue() <em>Value</em>}' reference.
     * <!-- begin-user-doc --> <!-- end-user-doc -->
     * 
     * @see #getValue()
     * @generated
     * @ordered
     */
    protected Expression value;

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

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

    /**
     * <!-- begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    public Expression getValue() {
        if (value != null && value.eIsProxy()) {
            final InternalEObject oldValue = (InternalEObject) value;
            value = (Expression) eResolveProxy(oldValue);
            if (value != oldValue) {
                if (eNotificationRequired()) {
                    eNotify(new ENotificationImpl(this, Notification.RESOLVE,
                            ErlangPackage.VARIABLE__VALUE, oldValue, value));
                }
            }
        }
        return value;
    }

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

    /**
     * <!-- begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    public void setValue(final Expression newValue) {
        final Expression oldValue = value;
        value = newValue;
        if (eNotificationRequired()) {
            eNotify(new ENotificationImpl(this, Notification.SET,
                    ErlangPackage.VARIABLE__VALUE, oldValue, value));
        }
    }

    /**
     * <!-- begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    public Object eGet(final int featureID, final boolean resolve,
            final boolean coreType) {
        switch (featureID) {
        case ErlangPackage.VARIABLE__VALUE:
            if (resolve) {
                return getValue();
            }
            return basicGetValue();
        }
        return super.eGet(featureID, resolve, coreType);
    }

    /**
     * <!-- begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    public void eSet(final int featureID, final Object newValue) {
        switch (featureID) {
        case ErlangPackage.VARIABLE__VALUE:
            setValue((Expression) newValue);
            return;
        }
        super.eSet(featureID, newValue);
    }

    /**
     * <!-- begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    public void eUnset(final int featureID) {
        switch (featureID) {
        case ErlangPackage.VARIABLE__VALUE:
            setValue((Expression) null);
            return;
        }
        super.eUnset(featureID);
    }

    /**
     * <!-- begin-user-doc --> <!-- end-user-doc -->
     * 
     * @generated
     */
    @Override
    public boolean eIsSet(final int featureID) {
        switch (featureID) {
        case ErlangPackage.VARIABLE__VALUE:
            return value != null;
        }
        return super.eIsSet(featureID);
    }

} // VariableImpl