Getting handle of ResourceDescriptionsData for indexed access to the resource descriptions

ResourceDescriptionsData Handle

final XtextResourceSet xtextResourceSet = ...
final ResourceDescriptionsData resourceDescriptionsData = ResourceDescriptionsData.ResourceSetAdapter.findResourceDescriptionsData(xtextResourceSet);
if (resourceDescriptionsData != null) {
  //resourceDescriptionsData.getAllResourceDescriptions()
  //resourceDescriptionsData.getResourceDescription(uri)
  //resourceDescriptionsData.getExportedObjectsByType(type)
}