Source for file class_container.php

<?php
class container extends base {
    var $objects;
    var $retrievedObjects;
 
    function container() {
        $this->objects = array();
        $this->retrievedObjects = array();
    }
    
    function register_object( &$object, $key = NULL ) {
        $this->objects[ $key ? $key : $object->get_attribute('id') ] = true;
        $this->retrievedObjects[ $key ? $key : $object->get_attribute('id') ] =& $object;
    }
    
    function unregister( $id ) {
        unset( $this->objects[$id] );
        unset( $this->retrievedObjects[$id] );
    }
    
    function output() {
    //this is essentially a debugging function
        echo "objects: ";
        print_array( $this->objects );
        echo "retrieved objects: ";
        foreach( $this->retrievedObjects as $object ) { print_r($object); }
    }
}
?>