Code example for BitSet

Methods: andNot, isEmpty

0
     *         while it was frozen, false iff the delta domain is reopened with pending value removals (updates 
     *         were made to the domain, while the delta domain was frozen). 
     */ 
    @Override 
    public boolean release() { 
        removedValues.andNot(removedValuesToPropagate);
        final boolean empty = removedValues.isEmpty();
        removedValuesToPropagate.clear();
        return empty;
    } 
 
    /** 
     * Iterator over delta domain 
     * 
     * @return delta iterator 
     */ 
    @Override 
    public DisposableIntIterator iterator() { 
        if (_iterator == null) {
            _iterator = new BitSetIterator();
        }else if (!_iterator.reusable()) {