ConditionImpl.java

/*
 * Copyright (c) 2003- michael lawley and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser General Public License version 2.1 as published by the Free Software Foundation
 * which accompanies this distribution, and is available by writing to
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Contributors:
 *     michael lawley
 *
 *
 */
package tefkat.model.impl;


import java.util.Collection;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.notify.NotificationChain;

import org.eclipse.emf.common.util.EList;

import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.InternalEObject;

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

import org.eclipse.emf.ecore.util.EObjectContainmentEList;
import org.eclipse.emf.ecore.util.InternalEList;

import tefkat.model.Condition;
import tefkat.model.Expression;
import tefkat.model.TefkatPackage;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Condition</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link tefkat.model.impl.ConditionImpl#getArg <em>Arg</em>}</li>
 *   <li>{@link tefkat.model.impl.ConditionImpl#getRelation <em>Relation</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class ConditionImpl extends SimpleTermImpl implements Condition {
    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public static final String copyright = "Copyright michael lawley Pty Ltd 2003-2007";

    /**
     * The cached value of the '{@link #getArg() <em>Arg</em>}' containment reference list.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @see #getArg()
     * @generated
     * @ordered
     */
    protected EList arg = null;

    /**
     * The default value of the '{@link #getRelation() <em>Relation</em>}' attribute.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @see #getRelation()
     * @generated
     * @ordered
     */
    protected static final String RELATION_EDEFAULT = null;

    /**
     * The cached value of the '{@link #getRelation() <em>Relation</em>}' attribute.
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @see #getRelation()
     * @generated
     * @ordered
     */
    protected String relation = RELATION_EDEFAULT;

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

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

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public EList getArg() {
        if (arg == null) {
            arg = new EObjectContainmentEList(Expression.class, this, TefkatPackage.CONDITION__ARG);
        }
        return arg;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public String getRelation() {
        return relation;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void setRelation(String newRelation) {
        String oldRelation = relation;
        relation = newRelation;
        if (eNotificationRequired())
            eNotify(new ENotificationImpl(this, Notification.SET, TefkatPackage.CONDITION__RELATION, oldRelation, relation));
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs) {
        switch (featureID) {
            case TefkatPackage.CONDITION__ARG:
                return ((InternalEList)getArg()).basicRemove(otherEnd, msgs);
        }
        return super.eInverseRemove(otherEnd, featureID, msgs);
    }

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

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void eSet(int featureID, Object newValue) {
        switch (featureID) {
            case TefkatPackage.CONDITION__ARG:
                getArg().clear();
                getArg().addAll((Collection)newValue);
                return;
            case TefkatPackage.CONDITION__RELATION:
                setRelation((String)newValue);
                return;
        }
        super.eSet(featureID, newValue);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public void eUnset(int featureID) {
        switch (featureID) {
            case TefkatPackage.CONDITION__ARG:
                getArg().clear();
                return;
            case TefkatPackage.CONDITION__RELATION:
                setRelation(RELATION_EDEFAULT);
                return;
        }
        super.eUnset(featureID);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated
     */
    public boolean eIsSet(int featureID) {
        switch (featureID) {
            case TefkatPackage.CONDITION__ARG:
                return arg != null && !arg.isEmpty();
            case TefkatPackage.CONDITION__RELATION:
                return RELATION_EDEFAULT == null ? relation != null : !RELATION_EDEFAULT.equals(relation);
        }
        return super.eIsSet(featureID);
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     * @generated NOT
     */
    public String toString() {
        if (eIsProxy()) return super.toString();
        
        String result;
        
        if (getArg().size() == 1) {
            result = relation + "(" + arg.get(0) + ")";
        } else if (getArg().size() > 1) {
            result = arg.get(0) + relation + arg.get(1);
        } else {
            result = super.toString();
        }

        return result;
    }

} //ConditionImpl