/**
* Returns a list that holds the opposite elements of the given reference for the given owner. The
* opposite elements are those of type E that have the reference to owner.
*
* <p>The collection corresponding to opposite in the following picture is returned, for given
* owner and reference.
*
* <pre>
* <b>opposite</b> reference
* E ----------------------------- owner
* </pre>
*
* reference has to be a key of the map observedRefToOpposite.
*
* @param <E>
* @param <E> The type of the elements in the collection.
* @param dataClass The class of the elements in the collection.
* @param owner The object whose list is retrieved.
* @param reference The reference whose opposite reference is retrieved.
* @return The opposite of reference for owner.
*/
public <E> List<E> getOppositeList(
Class<E> dataClass, InternalEObject owner, EReference reference) {
EReference opposite = observedRefToOpposite.get(reference);
if (opposite == null)
throw new IllegalArgumentException(
"This reference is not observed by this adapter: " + reference.toString());
EObjectEList<E> result = new EObjectEList<E>(dataClass, owner, opposite.getFeatureID());
for (Setting cur : getNonNavigableInverseReferences(owner, false)) {
if (cur.getEStructuralFeature().equals(reference))
result.add(dataClass.cast(cur.getEObject()));
}
return result;
}
private void adjustTransientOppositeReference(
InternalEObject instance, InternalEObject object, EReference oppositeReference) {
boolean wasDeliver = object.eDeliver(); // Disable notifications
if (wasDeliver) {
object.eSetDeliver(false);
}
try {
if (oppositeReference.isMany()) {
@SuppressWarnings("unchecked")
InternalEList<Object> list = (InternalEList<Object>) object.eGet(oppositeReference);
list.basicAdd(instance, null);
} else {
if (object.eGet(oppositeReference) != instance) {
object.eInverseAdd(
instance, oppositeReference.getFeatureID(), ((EObject) instance).getClass(), null);
}
}
} finally {
if (wasDeliver) {
object.eSetDeliver(true);
}
}
}
