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/**
 * Copyright (c) 2004 - 2009 Eike Stepper (Berlin, Germany) 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:
 *    Andre Dietisheim - initial API and implementation
 *    Eike Stepper - maintenance
 */
package org.eclipse.emf.cdo.defs.impl;

import org.eclipse.emf.cdo.defs.CDODefsPackage;
import org.eclipse.emf.cdo.defs.CDOPackageRegistryDef;
import org.eclipse.emf.cdo.defs.EPackageDef;

import org.eclipse.net4j.util.defs.impl.DefImpl;

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

import java.util.Collection;

// TODO: Auto-generated Javadoc
/**
 * <!-- begin-user-doc --> An implementation of the model object ' <em><b>CDO Package Registry Def</b></em>'. <!--
 * end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 * <li>{@link org.eclipse.emf.cdo.defs.impl.CDOPackageRegistryDefImpl#getPackages <em>Packages</em>}</li>
 * </ul>
 * </p>
 * 
 * @generated
 */
public class CDOPackageRegistryDefImpl extends DefImpl implements CDOPackageRegistryDef
{

  /**
   * The cached value of the '{@link #getPackages() <em>Packages</em>}' containment reference list. <!-- begin-user-doc
   * --> <!-- end-user-doc -->
   */
  protected EList<EPackageDef> packages;

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

  /**
   * <!-- begin-user-doc --> <!-- end-user-doc -->.
   * 
   * @return the e class
   * @generated
   */
  @Override
  protected EClass eStaticClass()
  {
    return CDODefsPackage.Literals.CDO_PACKAGE_REGISTRY_DEF;
  }

  /**
   * <!-- begin-user-doc --> <!-- end-user-doc -->.
   * 
   * @return the packages
   * @generated
   */
  public EList<EPackageDef> getPackages()
  {
    if (packages == null)
    {
      packages = new EObjectContainmentEList<EPackageDef>(EPackageDef.class, this,
          CDODefsPackage.CDO_PACKAGE_REGISTRY_DEF__PACKAGES);
    }
    return packages;
  }

  /**
   * <!-- begin-user-doc --> <!-- end-user-doc -->.
   * 
   * @param otherEnd
   *          the other end
   * @param featureID
   *          the feature id
   * @param msgs
   *          the msgs
   * @return the notification chain
   * @generated
   */
  @Override
  public NotificationChain eInverseRemove(InternalEObject otherEnd, int featureID, NotificationChain msgs)
  {
    switch (featureID)
    {
    case CDODefsPackage.CDO_PACKAGE_REGISTRY_DEF__PACKAGES:
      return ((InternalEList<?>)getPackages()).basicRemove(otherEnd, msgs);
    }
    return super.eInverseRemove(otherEnd, featureID, msgs);
  }

  /**
   * <!-- begin-user-doc --> <!-- end-user-doc -->.
   * 
   * @param featureID
   *          the feature id
   * @param resolve
   *          the resolve
   * @param coreType
   *          the core type
   * @return the object
   * @generated
   */
  @Override
  public Object eGet(int featureID, boolean resolve, boolean coreType)
  {
    switch (featureID)
    {
    case CDODefsPackage.CDO_PACKAGE_REGISTRY_DEF__PACKAGES:
      return getPackages();
    }
    return super.eGet(featureID, resolve, coreType);
  }

  /**
   * <!-- begin-user-doc --> <!-- end-user-doc -->.
   * 
   * @param featureID
   *          the feature id
   * @param newValue
   *          the new value
   * @generated
   */
  @SuppressWarnings("unchecked")
  @Override
  public void eSet(int featureID, Object newValue)
  {
    switch (featureID)
    {
    case CDODefsPackage.CDO_PACKAGE_REGISTRY_DEF__PACKAGES:
      getPackages().clear();
      getPackages().addAll((Collection<? extends EPackageDef>)newValue);
      return;
    }
    super.eSet(featureID, newValue);
  }

  /**
   * <!-- begin-user-doc --> <!-- end-user-doc -->.
   * 
   * @param featureID
   *          the feature id
   * @generated
   */
  @Override
  public void eUnset(int featureID)
  {
    switch (featureID)
    {
    case CDODefsPackage.CDO_PACKAGE_REGISTRY_DEF__PACKAGES:
      getPackages().clear();
      return;
    }
    super.eUnset(featureID);
  }

  /**
   * <!-- begin-user-doc --> <!-- end-user-doc -->.
   * 
   * @param featureID
   *          the feature id
   * @return true, if e is set
   * @generated
   */
  @Override
  public boolean eIsSet(int featureID)
  {
    switch (featureID)
    {
    case CDODefsPackage.CDO_PACKAGE_REGISTRY_DEF__PACKAGES:
      return packages != null && !packages.isEmpty();
    }
    return super.eIsSet(featureID);
  }

  /**
   * Creates the instance.
   * 
   * @return the CDO package registry
   */
  protected Object createInstance()
  {
    // TODO: implement CDOPackageRegistryDefImpl.createInstance()
    throw new UnsupportedOperationException();
    // return addPackages(new CDOPackageRegistryImpl());
  }

  /**
   * Adds the packages.
   * 
   * @param packageRegistry
   *          the package registry
   * @return the e package. registry
   */
  protected EPackage.Registry addPackages(EPackage.Registry packageRegistry)
  {
    for (EPackageDef ePackageDef : getPackages())
    {
      addPackage(ePackageDef, packageRegistry);
    }
    return packageRegistry;
  }

  /**
   * Adds the given {@link EPackage} within the supplied <tt>definition<tt> to the given <tt>CDOPackageRegistry<tt> .
   * 
   * @param ePackageDef
   *          the ePackage definition
   * @param packageRegistry
   *          the package registry
   */
  protected void addPackage(EPackageDef ePackageDef, EPackage.Registry packageRegistry)
  {
    EPackage ePackage = (EPackage)ePackageDef.getInstance();
    packageRegistry.put(ePackage.getNsURI(), ePackage);
  }

  /**
   * Adds the given {@link EPackage} within the supplied <tt>definition<tt> to the given <tt>CDOPackageRegistry<tt> .
   * 
   * @param ePackageDef
   *          the ePackage definition
   * @param packageRegistry
   *          the package registry
   */
  protected void removePackage(EPackageDef ePackageDef, EPackage.Registry packageRegistry)
  {
    EPackage ePackage = (EPackage)ePackageDef.getInstance();
    packageRegistry.remove(ePackage.getNsURI());
  }

} // CDOPackageRegistryDefImpl

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