/**
* Adds the given triple/double/single value as an additional condition
* to the previously added condition.
*
* @param string $subject
* @param string|null $predicate
* @param string|null $object
* @return self
* @throws InvalidArgumentException
*/
public function also($subject, $predicate = null, $object = null)
{
$this->graphBuilder->also($subject, $predicate, $object);
return $this;
}
public function testGetSPARQL()
{
$graphBuilder = new GraphBuilder(new UsageValidator());
$graphBuilder->where('?a', '?b', '?c');
$graphBuilder->also('?x', '?y');
$graphBuilder->also('?z');
$graphBuilder->where('?a', '?b', '?z');
$this->assertEquals(' ?a ?b ?c , ?z ; ?x ?y , ?z .', $graphBuilder->getSPARQL());
}
