public void grantReadPermission(Collection attributeNames){
  Iterator it=attributeNames.iterator();
  if (it != null) {
    while (it.hasNext()) {
      String temp=(String)it.next();
      readables.add(temp.toLowerCase());
    }
  }
}

public void grantReadPermission ( Collection attributeNames ) { Iterator it = attributeNames . iterator ( ) ; if ( it != null ) { while ( it . hasNext ( ) ) { String temp = ( String ) it . next ( ) ; readables . add ( temp . toLowerCase ( ) ) ; } } }
grant read permission to attributes .
