String categoriesSQL = "select category.category_velocity_var_name as cat_velocity_var "+
" from category join tree on (tree.parent = category.inode) join contentlet c on (c.inode = tree.child) " +
" where c.inode = ?";
DotConnect db = new DotConnect();
db.setSQL(categoriesSQL);
db.addParam(con.getInode());
ArrayList<String> categories=new ArrayList<String>();
List<HashMap<String, String>> categoriesResults = db.loadResults();
for (HashMap<String, String> crow : categoriesResults)
categories.add(crow.get("cat_velocity_var"));