/**
 * Copyright (c) 2011, 2016 - Lunifera GmbH (Gross Enzersdorf), Loetz GmbH&Co.KG (Heidelberg)
 *  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 
 * 
 *  Based on ideas from Xtext, Xtend, Xcore
 *    
 *  Contributors:  
 *  		Florian Pirchner - Initial implementation 
 *  
 */
package org.eclipse.osbp.dsl.semantic.entity.impl;

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.osbp.dsl.semantic.common.types.LFeature;

import org.eclipse.osbp.dsl.semantic.common.types.impl.LLazyResolverImpl;

import org.eclipse.osbp.dsl.semantic.entity.LNestedFeature;
import org.eclipse.osbp.dsl.semantic.entity.OSBPEntityPackage;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>LNested Feature</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * </p>
 * <ul>
 *   <li>{@link org.eclipse.osbp.dsl.semantic.entity.impl.LNestedFeatureImpl#getFeature <em>Feature</em>}</li>
 *   <li>{@link org.eclipse.osbp.dsl.semantic.entity.impl.LNestedFeatureImpl#getTail <em>Tail</em>}</li>
 * </ul>
 *
 * @generated
 */
public class LNestedFeatureImpl extends LLazyResolverImpl implements LNestedFeature {
	/**
	 * The cached value of the '{@link #getFeature() <em>Feature</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getFeature()
	 * @generated
	 * @ordered
	 */
	protected LFeature feature;

	/**
	 * The cached value of the '{@link #getTail() <em>Tail</em>}' containment reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getTail()
	 * @generated
	 * @ordered
	 */
	protected LNestedFeature tail;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public LFeature getFeature() {
		if (feature != null && feature.eIsProxy()) {
			InternalEObject oldFeature = (InternalEObject)feature;
			feature = (LFeature)eResolveProxy(oldFeature);
			if (feature != oldFeature) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, OSBPEntityPackage.LNESTED_FEATURE__FEATURE, oldFeature, feature));
			}
		}
		return feature;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public LFeature basicGetFeature() {
		return feature;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setFeature(LFeature newFeature) {
		LFeature oldFeature = feature;
		feature = newFeature;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, OSBPEntityPackage.LNESTED_FEATURE__FEATURE, oldFeature, feature));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public LNestedFeature getTail() {
		return tail;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public NotificationChain basicSetTail(LNestedFeature newTail, NotificationChain msgs) {
		LNestedFeature oldTail = tail;
		tail = newTail;
		if (eNotificationRequired()) {
			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, OSBPEntityPackage.LNESTED_FEATURE__TAIL, oldTail, newTail);
			if (msgs == null) msgs = notification; else msgs.add(notification);
		}
		return msgs;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setTail(LNestedFeature newTail) {
		if (newTail != tail) {
			NotificationChain msgs = null;
			if (tail != null)
				msgs = ((InternalEObject)tail).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - OSBPEntityPackage.LNESTED_FEATURE__TAIL, null, msgs);
			if (newTail != null)
				msgs = ((InternalEObject)newTail).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - OSBPEntityPackage.LNESTED_FEATURE__TAIL, null, msgs);
			msgs = basicSetTail(newTail, msgs);
			if (msgs != null) msgs.dispatch();
		}
		else if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, OSBPEntityPackage.LNESTED_FEATURE__TAIL, newTail, newTail));
	}

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case OSBPEntityPackage.LNESTED_FEATURE__FEATURE:
				if (resolve) return getFeature();
				return basicGetFeature();
			case OSBPEntityPackage.LNESTED_FEATURE__TAIL:
				return getTail();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case OSBPEntityPackage.LNESTED_FEATURE__FEATURE:
				setFeature((LFeature)newValue);
				return;
			case OSBPEntityPackage.LNESTED_FEATURE__TAIL:
				setTail((LNestedFeature)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case OSBPEntityPackage.LNESTED_FEATURE__FEATURE:
				setFeature((LFeature)null);
				return;
			case OSBPEntityPackage.LNESTED_FEATURE__TAIL:
				setTail((LNestedFeature)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case OSBPEntityPackage.LNESTED_FEATURE__FEATURE:
				return feature != null;
			case OSBPEntityPackage.LNESTED_FEATURE__TAIL:
				return tail != null;
		}
		return super.eIsSet(featureID);
	}

} //LNestedFeatureImpl