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Asked: 2026-05-23T03:32:29+00:00

I need to generate a unique integer id for a string. Reason: I have

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I need to generate a unique integer id for a string.

Reason:
I have a database application that can run on different databases. This databases contains parameters with parameter types that are generated from external xml data.
the current situation is that i use the ordinal number of the Enum. But when a parameter is inserted or removed, the ordinals get mixed up:
(FOOD = 0 , TOYS = 1) <–> (FOOD = 0, NONFOOD = 1, TOYS = 2)

The ammount of Parameter types is between 200 and 2000, so i am scared a bit using hashCode() for a string.

P.S.: I am using Java.

Thanks a lot

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1 Answer

  1. Editorial Team

    I would use a mapping table in the database to map these Strings to an auto increment value. These mapping should then be cached in the application.

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