/**
 * <copyright>
 * Copyright (c) 2005 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 API and implementation
 * </copyright>
 *
 * $Id: VariablesImpl.java,v 1.10 2011/03/30 18:54:25 rbrodt Exp $
 */
package org.eclipse.bpel.model.impl;

import java.util.Collection;
import org.eclipse.bpel.model.BPELPackage;
import org.eclipse.bpel.model.Variable;
import org.eclipse.bpel.model.Variables;
import org.eclipse.bpel.model.util.BPELConstants;
import org.eclipse.bpel.model.util.ReconciliationHelper;
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.EReference;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.util.EObjectContainmentEList;
import org.eclipse.emf.ecore.util.InternalEList;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Variables</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.bpel.model.impl.VariablesImpl#getChildren <em>Children</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class VariablesImpl extends BPELExtensibleElementImpl implements
		Variables {
	/**
	 * The cached value of the '{@link #getChildren() <em>Children</em>}' containment reference list.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getChildren()
	 * @generated
	 * @ordered
	 */
	protected EList<Variable> children;

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

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

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EList<Variable> getChildren() {
		if (children == null) {
			children = new EObjectContainmentEList<Variable>(Variable.class,
					this, BPELPackage.VARIABLES__CHILDREN);
		}
		return children;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public NotificationChain eInverseRemove(InternalEObject otherEnd,
			int featureID, NotificationChain msgs) {
		switch (featureID) {
		case BPELPackage.VARIABLES__CHILDREN:
			return ((InternalEList<?>) getChildren()).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 BPELPackage.VARIABLES__CHILDREN:
			return getChildren();
		}
		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 BPELPackage.VARIABLES__CHILDREN:
			getChildren().clear();
			getChildren().addAll((Collection<? extends Variable>) newValue);
			return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
		case BPELPackage.VARIABLES__CHILDREN:
			getChildren().clear();
			return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
		case BPELPackage.VARIABLES__CHILDREN:
			return children != null && !children.isEmpty();
		}
		return super.eIsSet(featureID);
	}

	@Override
	protected void adoptContent(EReference reference, Object object) {
		if (object instanceof Variable) {
			if (getElement() == null) {
				ReconciliationHelper.getInstance().patchParentElement(
						(Variable) object, this, null,
						BPELConstants.ND_VARIABLES, BPELConstants.ND_VARIABLE);
			} else {
				ReconciliationHelper.adoptChild(this, children,
						(Variable) object, BPELConstants.ND_VARIABLE);
			}
		}
		super.adoptContent(reference, object);
	}

	@Override
	protected void orphanContent(EReference reference, Object obj) {
		if (obj instanceof Variable) {
			ReconciliationHelper.orphanChild(this, (Variable) obj);
		}
		super.orphanContent(reference, obj);
	}

} //VariablesImpl