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发帖数: 1879 | 1 ☆─────────────────────────────────────☆
goodbug (好虫) 于 (Sun Feb 4 15:56:43 2007) 提到:
Our product never separated persistence and business layers well.
Right now we are having a new product, and I am trying to make a better
example.
Say we have a webmail, by sending a message, we need to add an entry to
message table, one entry in a message-user link table for each sender and
recipient. And then send a real email notificaiton to each recipient.
Now obviously saving data into tables are of p |
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