/**
* Saves the RDF,N3 or N-Triple serialization of the MemModel to a file.
* You can decide to which format the model should be serialized by using a
* corresponding suffix-string as $type parameter. If no $type parameter
* is placed this method will serialize the model to XML/RDF format.
* Returns FALSE if the MemModel couldn't be saved to the file.
*
* @access public
* @param string $filename
* @param string $type
* @throws PhpError
* @return boolean
*/
function saveAs($filename, $type = 'rdf')
{
// get suffix and create a corresponding serializer
if ($type == 'rdf') {
// Import Package Syntax
include_once RDFAPI_INCLUDE_DIR . PACKAGE_SYNTAX_RDF;
$ser = new RdfSerializer();
} elseif ($type == 'nt') {
// Import Package Syntax
include_once RDFAPI_INCLUDE_DIR . PACKAGE_SYNTAX_N3;
$ser = new NTripleSerializer();
} elseif ($type == 'n3') {
// Import Package Syntax
include_once RDFAPI_INCLUDE_DIR . PACKAGE_SYNTAX_N3;
$ser = new N3Serializer();
} else {
print 'Serializer type not properly defined. Use the strings "rdf","n3" or "nt".';
return false;
}
return $ser->saveAs($this, $filename);
}
