How to use

copyAll

method

in

org.eclipse.emf.ecore.util.EcoreUtil$Copier

@Override
public <T> Collection<T> copyAll(Collection<? extends T> eObjects) {
  Collection<T> result = new ArrayList<T>(eObjects.size());
  for (Object object : eObjects) {
    @SuppressWarnings("unchecked")
    T copy = (T) copy((EObject) object);
    result.add(copy);
    for (TreeIterator<EObject> eAllContents = ((EObject) object)
      .eAllContents(); eAllContents.hasNext();) {
      EObject childEObject = eAllContents.next();
      if (childEObject instanceof Element) {
        @SuppressWarnings("unchecked")
        Collection<T> copies = (Collection<T>) super
          .copyAll(((Element) childEObject)
            .getStereotypeApplications());
        result.addAll(copies);
      }
    }
  }
  return result;
}

Collection<EObject> newObjectsToAttach = copier.copyAll(objectsToDetach);
copier.copyReferences();

Collection<EObject> newObjectsToAttach = copier.copyAll(objectsToDetach);
copier.copyReferences();

copier.copyAll(propertyFeatureList);
copier.copyReferences();

copier.copyAll(propertyFeatureList);
copier.copyReferences();

/**
 * Called to handle the copying of a containment feature;
 * this adds a list of copies or sets a single copy as appropriate for the multiplicity.
 * @param eReference the feature to copy.
 * @param eObject the object from which to copy.
 * @param copyEObject the object to copy to.
 */
protected void copyContainment(EReference eReference, EObject eObject, EObject copyEObject)
{
 if (eObject.eIsSet(eReference))
 {
  EStructuralFeature.Setting setting = getTarget(eReference, eObject, copyEObject);
  if (setting != null)
  {
   Object value = eObject.eGet(eReference);
   if (eReference.isMany())
   {
    @SuppressWarnings("unchecked")
    List<EObject> target = (List<EObject>)value;
    setting.set(copyAll(target));
   }
   else
   {
    setting.set(copy((EObject)value));
   }
  }
 }
}

/**
 * Called to handle the copying of a containment feature;
 * this adds a list of copies or sets a single copy as appropriate for the multiplicity.
 * @param eReference the feature to copy.
 * @param eObject the object from which to copy.
 * @param copyEObject the object to copy to.
 */
protected void copyContainment(EReference eReference, EObject eObject, EObject copyEObject)
{
 if (eObject.eIsSet(eReference))
 {
  EStructuralFeature.Setting setting = getTarget(eReference, eObject, copyEObject);
  if (setting != null)
  {
   Object value = eObject.eGet(eReference);
   if (eReference.isMany())
   {
    @SuppressWarnings("unchecked")
    List<EObject> target = (List<EObject>)value;
    setting.set(copyAll(target));
   }
   else
   {
    setting.set(copy((EObject)value));
   }
  }
 }
}

/**
 * copies contents of a resource set into a new one
 */
public static <T extends ResourceSet> T clone(T target, ResourceSet source) {
  EList<Resource> resources = source.getResources();
  EcoreUtil.Copier copier = new EcoreUtil.Copier();
  for (Resource resource : resources) {
    Resource resource2 = target.createResource(resource.getURI());
    resource2.getContents().addAll(copier.copyAll(resource.getContents()));
  }
  copier.copyReferences();
  return target;
}

/**
 * Returns a collection of the self-contained copies of each {@link EObject} in eObjects.
 * @param eObjects the collection of objects to copy.
 * @return the collection of copies.
 * @see Copier
 */
public static <T> Collection<T> copyAll(Collection<? extends T> eObjects)
{
 Copier copier = new Copier();
 Collection<T> result = copier.copyAll(eObjects);
 copier.copyReferences();
 return result;
}

/**
 * Returns a collection of the self-contained copies of each {@link EObject} in eObjects.
 * @param eObjects the collection of objects to copy.
 * @return the collection of copies.
 * @see Copier
 */
public static <T> Collection<T> copyAll(Collection<? extends T> eObjects)
{
 Copier copier = new Copier();
 Collection<T> result = copier.copyAll(eObjects);
 copier.copyReferences();
 return result;
}