//------------------------------------------------------------------------------
// Copyright (c) 2005, 2006 IBM Corporation and others.
// 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
//
// Contributors:
// IBM Corporation - initial implementation
//------------------------------------------------------------------------------
package org.eclipse.epf.uma.impl;

import java.util.Collection;
import java.util.List;

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.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
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 org.eclipse.epf.uma.Section;
import org.eclipse.epf.uma.UmaPackage;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Section</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.epf.uma.impl.SectionImpl#getSectionName <em>Section Name</em>}</li>
 *   <li>{@link org.eclipse.epf.uma.impl.SectionImpl#getSectionDescription <em>Section Description</em>}</li>
 *   <li>{@link org.eclipse.epf.uma.impl.SectionImpl#getSubSections <em>Sub Sections</em>}</li>
 *   <li>{@link org.eclipse.epf.uma.impl.SectionImpl#getPredecessor <em>Predecessor</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class SectionImpl extends VariabilityElementImpl implements Section {
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	private static final long serialVersionUID = 1L;

	/**
	 * The default value of the '{@link #getSectionName() <em>Section Name</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getSectionName()
	 * @generated
	 * @ordered
	 */
	protected static final String SECTION_NAME_EDEFAULT = "";

	/**
	 * The cached value of the '{@link #getSectionName() <em>Section Name</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getSectionName()
	 * @generated
	 * @ordered
	 */
	protected String sectionName = SECTION_NAME_EDEFAULT;

	/**
	 * The default value of the '{@link #getSectionDescription() <em>Section Description</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getSectionDescription()
	 * @generated
	 * @ordered
	 */
	protected static final String SECTION_DESCRIPTION_EDEFAULT = "";

	/**
	 * The cached value of the '{@link #getSectionDescription() <em>Section Description</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getSectionDescription()
	 * @generated
	 * @ordered
	 */
	protected String sectionDescription = SECTION_DESCRIPTION_EDEFAULT;

	/**
	 * The cached value of the '{@link #getSubSections() <em>Sub Sections</em>}' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getSubSections()
	 * @generated
	 * @ordered
	 */
	protected EList<Section> subSections;

	/**
	 * The cached value of the '{@link #getPredecessor() <em>Predecessor</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getPredecessor()
	 * @generated
	 * @ordered
	 */
	protected Section predecessor;

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

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setSectionName(String newSectionName) {
		String oldSectionName = sectionName;
		sectionName = newSectionName;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
					UmaPackage.SECTION__SECTION_NAME, oldSectionName,
					sectionName));
	}

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setSectionDescription(String newSectionDescription) {
		String oldSectionDescription = sectionDescription;
		sectionDescription = newSectionDescription;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
					UmaPackage.SECTION__SECTION_DESCRIPTION,
					oldSectionDescription, sectionDescription));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public List<Section> getSubSections() {
		if (subSections == null) {
			subSections = new EObjectContainmentEList.Resolving<Section>(
					Section.class, this, UmaPackage.SECTION__SUB_SECTIONS);
		}
		return subSections;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Section getPredecessor() {
		if (predecessor != null && ((EObject) predecessor).eIsProxy()) {
			InternalEObject oldPredecessor = (InternalEObject) predecessor;
			predecessor = (Section) eResolveProxy(oldPredecessor);
			if (predecessor != oldPredecessor) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE,
							UmaPackage.SECTION__PREDECESSOR, oldPredecessor,
							predecessor));
			}
		}
		return predecessor;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public Section basicGetPredecessor() {
		return predecessor;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setPredecessor(Section newPredecessor) {
		Section oldPredecessor = predecessor;
		predecessor = newPredecessor;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET,
					UmaPackage.SECTION__PREDECESSOR, oldPredecessor,
					predecessor));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd,
			int featureID, NotificationChain msgs) {
		switch (featureID) {
		case UmaPackage.SECTION__SUB_SECTIONS:
			return ((InternalEList<?>) getSubSections()).basicRemove(otherEnd,
					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 UmaPackage.SECTION__SECTION_NAME:
			return getSectionName();
		case UmaPackage.SECTION__SECTION_DESCRIPTION:
			return getSectionDescription();
		case UmaPackage.SECTION__SUB_SECTIONS:
			return getSubSections();
		case UmaPackage.SECTION__PREDECESSOR:
			if (resolve)
				return getPredecessor();
			return basicGetPredecessor();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@SuppressWarnings("unchecked")
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
		case UmaPackage.SECTION__SECTION_NAME:
			setSectionName((String) newValue);
			return;
		case UmaPackage.SECTION__SECTION_DESCRIPTION:
			setSectionDescription((String) newValue);
			return;
		case UmaPackage.SECTION__SUB_SECTIONS:
			getSubSections().clear();
			getSubSections().addAll((Collection<? extends Section>) newValue);
			return;
		case UmaPackage.SECTION__PREDECESSOR:
			setPredecessor((Section) newValue);
			return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
		case UmaPackage.SECTION__SECTION_NAME:
			setSectionName(SECTION_NAME_EDEFAULT);
			return;
		case UmaPackage.SECTION__SECTION_DESCRIPTION:
			setSectionDescription(SECTION_DESCRIPTION_EDEFAULT);
			return;
		case UmaPackage.SECTION__SUB_SECTIONS:
			getSubSections().clear();
			return;
		case UmaPackage.SECTION__PREDECESSOR:
			setPredecessor((Section) null);
			return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
		case UmaPackage.SECTION__SECTION_NAME:
			return SECTION_NAME_EDEFAULT == null ? sectionName != null
					: !SECTION_NAME_EDEFAULT.equals(sectionName);
		case UmaPackage.SECTION__SECTION_DESCRIPTION:
			return SECTION_DESCRIPTION_EDEFAULT == null ? sectionDescription != null
					: !SECTION_DESCRIPTION_EDEFAULT.equals(sectionDescription);
		case UmaPackage.SECTION__SUB_SECTIONS:
			return subSections != null && !subSections.isEmpty();
		case UmaPackage.SECTION__PREDECESSOR:
			return predecessor != null;
		}
		return super.eIsSet(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public String toString() {
		if (eIsProxy())
			return super.toString();

		StringBuffer result = new StringBuffer(super.toString());
		result.append(" (sectionName: "); //$NON-NLS-1$
		result.append(sectionName);
		result.append(", sectionDescription: "); //$NON-NLS-1$
		result.append(sectionDescription);
		result.append(')');
		return result.toString();
	}

} //SectionImpl