是否有ISession.Merge()的替代方法，在使用乐观锁定时不会抛出该替代方法? [英] Is there an alternative to ISession.Merge() that doesn't throw when using optimistic locking?

问题描述

我一直在尝试使用ISession.Merge()来保持两个会话之间的一致性，但是当合并的实例的Version属性高于会话中加载的实例的Version属性时，它会失败(带有StaleObjectStateException).

I've been trying to use ISession.Merge() to keep coherence between two sessions, but it fails when the merged instance has a higher Version property than the one loaded in the session (with a StaleObjectStateException).

当版本"字段不匹配时，是否有其他可行的方法?

Is there an alternative method that would work when the Version fields do not match ?

推荐答案

似乎没有任何方法可以安全地在会话之间合并实体，至少使用乐观锁定是可以的.

There doesn't seem to be any way to safely merge entities between sessions, at least with optimistic-locking.

我要使用另一种模式:每个会话都有每个实体的自己的副本，并且我根据需要在每个会话上refresh()实例.这增加了内存使用和数据库往返的开销，但似乎可行.

I'm going with another pattern: each session has its own copies of each entity, and I refresh() the instances on each session as needed. This has added overhead in memory usage and round-trips to the DB, but it seems to work.

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