cache.addRelation(new Triple(d, closedP, c));
cache.addRelation(new Triple(d, closedP, e));
cache.addRelation(new Triple(c, closedP, e));
cache.addRelation(new Triple(c, closedP, b));
TestUtil.assertIteratorValues(this,
cache.find(new TriplePattern(c, directP, null)),
new Object[] {
new Triple(c, closedP, e),
new Triple(c, closedP, g),
new Triple(c, closedP, b),
new Triple(c, closedP, d),