notify all observers that a status change has occurred . concode_field_sep Iterator<Observer> mIterator concode_elem_sep ArrayList<Observer> mObservers concode_field_sep TransactionState getState concode_elem_sep void detach concode_elem_sep void attach
void function ( ) { mIterator = mObservers . iterator ( ) ; try { while ( mIterator . hasNext ( ) ) { mIterator . next ( ) . update ( this ) ; } } finally { mIterator = null ; } }