ALDSP 3.0 -- create and return key

I have a situation where the client needs to be able to generate a key for new records prior to sending to the server. Trust me, the client needs the key before a new record is inserted.
Is there a way to get the key that DSP would generate using a sequence number for my physical service? That is to say, under normal circumstances I use DSP to generate the key from a sequence and stick it in the new record. In this one situation, the client needs this information in advance, and I want to use the same sequence for it. Ideally I would like to just call a function in DSP to retrieve the key for the physical service. If necessary, I would create a new physical service to retrieve it.
Thanks!
Jeff

Generating globally unique keys is hard work. You need to ensure they are unique between threads, servers - even domains, and over server restarts - it's not as simple as myKey++. So instead of re-inventing an Oracle Sequence, we'll let you create a physical data service that does ... SELECT MYSEQUENCE.nextval from DUAL.
Also - you have a corner case - where your client needs the unique number before the update takes place. Most applications are happy to have it after - in which case ALDSP will do everything for you if you configure the element to use the autoNumber type=sequence property.

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ALDSP 3.0 -- create and return key

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