public void findLocalReferences(
Set<? extends EObject> targets,
IAcceptor<IReferenceDescription> acceptor,
Predicate<IReferenceDescription> filter,
IProgressMonitor monitor) {
if (monitor != null && monitor.isCanceled()) return;
if (targets != null && !targets.isEmpty()) {
Set<Resource> targetResources = new HashSet<Resource>();
for (EObject target : targets) {
targetResources.add(target.eResource());
}
Map<EObject, Collection<Setting>> targetResourceInternalCrossRefs =
CrossReferencer.find(targetResources);
Map<EObject, URI> exportedElementsMap = null;
SubMonitor subMonitor =
SubMonitor.convert(monitor, Messages.ReferenceQuery_monitor, targets.size());
for (EObject target : targets) {
Collection<Setting> crossRefSettings = targetResourceInternalCrossRefs.get(target);
if (crossRefSettings != null) {
SubMonitor subSubMonitor = subMonitor.newChild(crossRefSettings.size());
for (Setting crossRefSetting : crossRefSettings) {
if (subSubMonitor.isCanceled()) return;
EObject source = crossRefSetting.getEObject();
if (crossRefSetting.getEStructuralFeature() instanceof EReference) {
EReference reference = (EReference) crossRefSetting.getEStructuralFeature();
int index = 0;
if (reference.isMany()) {
List<?> values = (List<?>) source.eGet(reference);
for (int i = 0; i < values.size(); ++i) {
if (target == values.get(i)) {
index = i;
break;
}
}
}
if (exportedElementsMap == null)
exportedElementsMap = createExportedElementsMap(target.eResource());
IReferenceDescription localReferenceDescription =
new DefaultReferenceDescription(
source,
target,
reference,
index,
findClosestExportedContainerURI(source, exportedElementsMap));
if (filter == null || filter.apply(localReferenceDescription))
acceptor.accept(localReferenceDescription);
}
subSubMonitor.worked(1);
}
}
}
}
}
/**
* 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;
}