Posted: Wed Nov 26, 2008 5:08 pm Post subject: Блокировки 'ENQUEUE_E_...' и Persistent Objects
Вопрос - если обновление таблицы происходит через вызов метода SET_<...> Persistent Object, то нужно ли блокировать/разблокировать таблицу через вызов ФМ 'ENQUEUE_E_...' и 'DEQUEUE_E_...' или просто достаточно вызвать COMMIT WORK AND WAIT?
Буквально 2 дня назад читал статью в последнем выпуске sappro.com - "Use ABAP’s Object Services to build object-oriented enterprise applications and divide database access from application logic". Там люди пишут, что им пришлось самим писать решение по блокировкам, т.к. автоматом фреймворк не поддерживает:
Quote:
At first, we were disappointed to find that Object Services don’t come with a mechanism to synchronize concurrent write accesses. Fortunately, you can use the interfaces that Object Services provide to implement a generic service usable in any number of classes and applications without adaptation. For our solution, we didn’t have to develop a new lock concept from scratch; instead, we based our solution on the SAP Lock Concept, which we integrated into the existing functionalities of Object Services.
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