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Editorial Team
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Asked: 2026-05-24T20:48:55+00:00

I’m using Eclipselink and I’m trying figure out the best way to create a

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I’m using Eclipselink and I’m trying figure out the best way to create a base class for my entity.

For example, I have a User entity and I would like to provide an extended User class for some clients, but I would like to not have to rewrite my generic queries.

So I would have a User entity and a ClientSpecificUser entity, but be able to pull up ClientSpecificUser by using the query “select e from User e”.

Has anyone done something like? What worked best?

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  1. Editorial Team

    Java 5 Generics could be a good fit for this issue, to institute a generic DAO layer. Here are 2 examples:

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