@Override public void eventsHappenedInCommand(List<SModelEvent> events) { for (SModelEvent event : events) { if (event.getModelDescriptor() == null) continue; if (!myModels.contains(event.getModelDescriptor().getReference())) continue; if (event instanceof SModelRootEvent) { SModelRootEvent modelRootEvent = (SModelRootEvent) event; SNodeReference rootPointer = new jetbrains.mps.smodel.SNodePointer(modelRootEvent.getRoot()); if (modelRootEvent.isRemoved() && myNodes.contains(rootPointer)) { myChanged = true; return; } } else if (event instanceof SModelChildEvent) { SModelChildEvent modelChildEvent = (SModelChildEvent) event; SNodeReference childPointer = new jetbrains.mps.smodel.SNodePointer( modelChildEvent.getModel().getReference(), modelChildEvent.getChild().getNodeId()); if (modelChildEvent.isRemoved() && myNodes.contains(childPointer)) { myChanged = true; return; } } } }