public ImmutableSortedSet<T> newWithout(T element) {
if (this.contains(element)) {
TreeSortedSet<T> result = TreeSortedSet.newSet(this);
result.remove(element);
return result.toImmutable();
}
return this;
}
public ImmutableSortedSet<T> newWithoutAll(Iterable<? extends T> elements) {
TreeSortedSet<T> result = TreeSortedSet.newSet(this);
this.removeAllFrom(elements, result);
return result.toImmutable();
}
public ImmutableSortedSet<T> newWithAll(Iterable<? extends T> elements) {
TreeSortedSet<T> result = TreeSortedSet.newSet(this);
result.addAllIterable(elements);
return result.toImmutable();
}
public ImmutableSortedSet<T> filterNot(Predicate<? super T> predicate) {
TreeSortedSet<T> result = TreeSortedSet.newSet(this.comparator());
this.forEach(new FilterNotProcedure<T>(predicate, result));
return result.toImmutable();
}