public function __construct(URI $subject, $language)
{
$this->subject = $subject;
$this->language = $language;
$this->use = Options::getOption('Sparql.use');
if ($this->use == 'odbc') {
$this->odbc = ODBC::getDefaultConnection();
} else {
$this->sparqlEndpoint = SPARQLEndpoint::getDefaultEndpoint();
}
}
private function _testsubject($subject)
{
$testquery = $this->_testsubjectQuery($subject);
$se = SPARQLEndpoint::getDefaultEndpoint();
return $se->executeCount($testquery, get_class($this), $this->graphURI);
}
private function _testsubject($subject, $graphURI)
{
$g = '';
if ($graphURI != false) {
$g = ' FROM <' . $graphURI . '> ';
}
$testquery = 'SELECT count(*) as ?count ' . $g . ' {<' . $subject . '> ?p ?o}';
//echo $testquery;
$se = SPARQLEndpoint::getDefaultEndpoint();
return $se->executeCount($testquery, get_class($this), $graphURI);
}
