ExpressionImpl.java

/**
 * <copyright>
 * </copyright>
 *
 * $Id$
 */
package tefkat.engine.runtime.impl;

import java.util.List;

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;
import org.eclipse.emf.ecore.impl.EObjectImpl;

import org.eclipse.emf.ecore.util.EcoreUtil;

import tefkat.engine.runtime.Binding;
import tefkat.engine.runtime.CompoundExpr;
import tefkat.engine.runtime.Context;
import tefkat.engine.runtime.Expression;
import tefkat.engine.runtime.NotGroundException;
import tefkat.engine.runtime.ResolutionException;
import tefkat.engine.runtime.RuntimePackage;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Expression</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link tefkat.engine.runtime.impl.ExpressionImpl#getExpr <em>Expr</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public abstract class ExpressionImpl extends EObjectImpl implements Expression {
    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public static final String copyright = "Copyright michael lawley 2004";

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

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

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public CompoundExpr getExpr() {
        if (eContainerFeatureID != RuntimePackage.EXPRESSION__EXPR) return null;
        return (CompoundExpr)eContainer();
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public NotificationChain basicSetExpr(CompoundExpr newExpr, NotificationChain msgs) {
        msgs = eBasicSetContainer((InternalEObject)newExpr, RuntimePackage.EXPRESSION__EXPR, msgs);
        return msgs;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void setExpr(CompoundExpr newExpr) {
        if (newExpr != eInternalContainer() || (eContainerFeatureID != RuntimePackage.EXPRESSION__EXPR && newExpr != null)) {
            if (EcoreUtil.isAncestor(this, newExpr))
                throw new IllegalArgumentException("Recursive containment not allowed for " + toString());
            NotificationChain msgs = null;
            if (eInternalContainer() != null)
                msgs = eBasicRemoveFromContainer(msgs);
            if (newExpr != null)
                msgs = ((InternalEObject)newExpr).eInverseAdd(this, RuntimePackage.COMPOUND_EXPR__ARG, CompoundExpr.class, msgs);
            msgs = basicSetExpr(newExpr, msgs);
            if (msgs != null) msgs.dispatch();
        }
        else if (eNotificationRequired())
            eNotify(new ENotificationImpl(this, Notification.SET, RuntimePackage.EXPRESSION__EXPR, newExpr, newExpr));
    }

    final static Binding NULL_BINDING = new Binding();
    static { NULL_BINDING.freeze(); }
    
    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated NOT
     */
    public List eval(Context context) throws ResolutionException, NotGroundException {
        return eval(context, NULL_BINDING);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated NOT
     */
    public abstract List eval(Context context, Binding binding) throws ResolutionException, NotGroundException;

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public NotificationChain eInverseAdd(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
        switch (featureID) {
            case RuntimePackage.EXPRESSION__EXPR:
                if (eInternalContainer() != null)
                    msgs = eBasicRemoveFromContainer(msgs);
                return basicSetExpr((CompoundExpr)otherEnd, msgs);
        }
        return super.eInverseAdd(otherEnd, featureID, msgs);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
        switch (featureID) {
            case RuntimePackage.EXPRESSION__EXPR:
                return basicSetExpr(null, msgs);
        }
        return super.eInverseRemove(otherEnd, featureID, msgs);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public NotificationChain eBasicRemoveFromContainerFeature(NotificationChain msgs) {
        switch (eContainerFeatureID) {
            case RuntimePackage.EXPRESSION__EXPR:
                return eInternalContainer().eInverseRemove(this, RuntimePackage.COMPOUND_EXPR__ARG, CompoundExpr.class, msgs);
        }
        return super.eBasicRemoveFromContainerFeature(msgs);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public Object eGet(int featureID, boolean resolve, boolean coreType) {
        switch (featureID) {
            case RuntimePackage.EXPRESSION__EXPR:
                return getExpr();
        }
        return super.eGet(featureID, resolve, coreType);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void eSet(int featureID, Object newValue) {
        switch (featureID) {
            case RuntimePackage.EXPRESSION__EXPR:
                setExpr((CompoundExpr)newValue);
                return;
        }
        super.eSet(featureID, newValue);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void eUnset(int featureID) {
        switch (featureID) {
            case RuntimePackage.EXPRESSION__EXPR:
                setExpr((CompoundExpr)null);
                return;
        }
        super.eUnset(featureID);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public boolean eIsSet(int featureID) {
        switch (featureID) {
            case RuntimePackage.EXPRESSION__EXPR:
                return getExpr() != null;
        }
        return super.eIsSet(featureID);
    }

} //ExpressionImpl