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What classes should I get my own DataAccessLayerException and DuplicateEntryException from?

I want to add the DataAccessLayerException and DuplicateEntryException classes. But I doubt very much from which classes should I get? For example, a DataAccessLayerException (to be used as a wrapper for exceptions thrown from the data access layer) can be obtained from an exception or a DbException. But I'm afraid that DbException should be the base class only for provider exceptions like OracleException or SqliteException etc. I dont know. And DuplicateEntryException (yes, I hate that this exception is not implemented by db providers, so I will create it myself) can be obtained from Exception or DbException or even from DataAccessLayerException.

What do you think? Also, please give reasons why you think so.

Please experienced developers / architects.

Thanks in advance.

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2 answers

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: ApplicationException, !

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Source: https://habr.com/ru/post/1726557/

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