if (_subject == null || isObjectSet()) _subject = _subjectIterator.next(); if (!isObjectSet()) _objectIterator = new LiteralFilter(_subject.getRNeighbors(getRole()).iterator()); if (isObjectSet())
if (_subject == null || isObjectSet()) _subject = _subjectIterator.next(); if (!isObjectSet()) _objectIterator = new LiteralFilter(_subject.getRNeighbors(getRole()).iterator()); if (isObjectSet())