Asynchronous Components
COM+ provides our applications the capability to create and execute components asynchronously. COM+ uses Messaging and a service called Queued Components to provide this functionality. Queued Components work like this: Suppose you have an order-processing system and you want to take your database offline for a few hours every night to do backup. In the meantime, you do not want to stop your site from taking orders. Instead, you can queue your order objects and their requests inside a message queue. When the database comes back online, COM+ will play back the messages and the orders will be processed accordingly. Of course, backing up a database is one thing, but what if your database failed? Or what if your order- processing ...
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