public boolean containsKey(SNodeId key) {
if (key instanceof Regular) {
return myRegularMap.containsKey(((Regular) key).getId());
} else if (key instanceof Foreign) {
return myForeignMap.containsKey(((Foreign) key).getId());
} else {
return myOtherMap.containsKey(key);
}
}
public boolean isMutable(@NotNull T item) {
return modifiedToOriginal.containsKey(item) || !originalItems.contains(item);
}