/**
* Returns the list of available subclasses of ZendSearchLuceneTextExtractor
* in the order in which they should be processed. Order is determined by
* the $priority static on each class. Default is 100 for all inbuilt
* classes, lower numbers get run first.
*
* @access private
* @static
* @return Array An array of strings containing classnames.
*/
private static function getTextExtractorClasses()
{
if (!self::$extractorClasses) {
$all_classes = ClassInfo::subclassesFor('ZendSearchLuceneTextExtractor');
usort($all_classes, create_function('$a, $b', '
$pa = new ReflectionClass($a);
$pa = $pa->getStaticPropertyValue(\'priority\');
$pb = new ReflectionClass($b);
$pb = $pb->getStaticPropertyValue(\'priority\');
if ( $pa == $pb ) return 0;
return ($pa < $pb) ? -1 : 1;'));
self::$extractorClasses = $all_classes;
}
return self::$extractorClasses;
}
