>Hi Pertti,
>
>There are many interesting scenarios which demand a variety of locking strategies. You have come up with some great ones.
>
>I am on contract with a large company that is rolling-out SAP modules. There are dozens of LOB apps (some 3rd party) written in different languages which have to communicate with a common interface (middleware) to SAP to map legacy GL account transactions to the new SAP GL account structures. The business rules are extremely complex.
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>Here is a hairball: LOB App(1), LOB App(2), LOB App(i)... are all performing multiple transactions for the same customers which requires an "over limit / budget" business rule validation among others. There are tens of thousands of transactions per day all of which affect the business rule. Two LOB apps process transactions in batch with the others are in real-time. The business layer has to validate the "over limit / budget" business rule (among others) before any transactions are commited to SAP.
>
>You know, the more I think about it, the more we should get paid for implementing solutions to problems like these... :)
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>
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>>Jeff,

lol, I'll second that. Don't forget they want it all developed in Java.