public void put(Collection<T> entities) {
    if(entities != null && !entities.isEmpty()) { // yay!
        Cursor cursor = getWriter();
        try {
            Iterator i = entities.iterator();
            while(i.hasNext()) {
                cursor.put(i.next());
            }
           commitWriter(cursor);
        } finally {
           releaseWriter(cursor);
        }
    }
}