Set default value for static method in bootstrap - zend-framework

Question

this paragraph is part of 'Zend Framework In Action' book.
SearchIndexer::setIndexDirectory(ROOT_DIR . '/var/search_index');
Places_Db_Table_Row_Observable::attachObserver('SearchIndexer');
As you can see, it’s simply a case of setting the directory to store the search index files
and attaching the class to the list of observers in Places_Db_Table_Row_Observable
using the name of the class.
Now I have a problem! I put this code in bootstrap file in runapp method, but it can't recognize the directory that I set in bootstrap!
It shows me this error
An error occurred exception 'Zend_Search_Exception' with message 'No index directory specified' in E:\xampp\php\PEAR\Zend\Search\Lucene.php:497
=======================================================
other type of my question :
I have this code in bootstrap file (runApp method):
SearchIndexer::setIndexDirectory(ROOT_DIR.'/var/search_index');
Places_Db_Table_Row_Observable::attachObserver('SearchIndexer');
I set search directory path in SearchIndexer class, but there is a prob!
When I use of below code in controller action, it can't recognize the directory that I set in bootstrap!
controller code :
$index = Places_Search_Lucene::open(SearchIndexer::getIndexDirectory());
this is seachIndexer code :
public static function setIndexDirectory($directory){
if(!is_dir($directory)) {
throw new Exception('Directory for SearchIndexer is invalid ('. $directory .')');
}
self::$_indexDirectory = $directory;
}
public static function getIndexDirectory(){
return self::$_indexDirectory;
}

Answer 1

Your getIndexDirectory function does not return a path so Places_Search_Lucene::open fails.
Maybe setIndexDirectory fails to set the path. Do some debugging on that.
Maybe you use the class in your bootstrap before it gets loaded by zend autoloader. Where do you perform this?
Try to load the class manually before usage:
Zend_Loader::loadClass('Path_To_SearchIndexer',
array(
'/home/production/mylib',
)
);
Documentation on zend loader: http://framework.zend.com/manual/en/zend.loader.load.html