public SortedSet<E> headSet(E toElement) { if (!checkInitializedRead()) return null; return new SortedSetProxy<E>(getCollection().headSet(toElement)); }
public SortedSet<E> subSet(E fromElement, E toElement) { if (!checkInitializedRead()) return null; return new SortedSetProxy<E>(getCollection().subSet(fromElement, toElement)); }
public SortedSet<E> headSet(E toElement) { if (!checkInitializedRead()) return null; return new SortedSetProxy<E>(getCollection().headSet(toElement)); }
public SortedSet<E> subSet(E fromElement, E toElement) { if (!checkInitializedRead()) return null; return new SortedSetProxy<E>(getCollection().subSet(fromElement, toElement)); }
public SortedSet<E> tailSet(E fromElement) { if (!checkInitializedRead()) return null; return new SortedSetProxy<E>(getCollection().tailSet(fromElement)); }
public SortedSet<E> tailSet(E fromElement) { if (!checkInitializedRead()) return null; return new SortedSetProxy<E>(getCollection().tailSet(fromElement)); }
public SortedSet<E> tailSet(E fromElement) { if (!checkInitializedRead()) return null; return new SortedSetProxy<E>(getCollection().tailSet(fromElement)); }
public SortedSet<E> subSet(E fromElement, E toElement) { if (!checkInitializedRead()) return null; return new SortedSetProxy<E>(getCollection().subSet(fromElement, toElement)); }
public SortedSet<E> headSet(E toElement) { if (!checkInitializedRead()) return null; return new SortedSetProxy<E>(getCollection().headSet(toElement)); }