introduce id() and version() functions #596
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- this is the most minimal form of this which supports what we want to do in Jakarta Data - for now, only allow them in comparison expressions with input parameters - also make the section on Entity Type Expressions more readable
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@lukasj The reason I'm proposing this now, even though it seems like something that's otherwise highly non-urgent at best, is that:
It's not critical, but it would be nice. |
lukasj
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somehow I just messed this up in jakartaee#596
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somehow I just messed this up in #596
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…2108) Implementation plus unit test according jakartaee/persistence#596 There are two new JPQL functions: - `ID(...)` to fetch Entity `@Id` value. There is support for single or composite primary key - `VERSION(...)` to fetch attribute value from attribute marked by `@Version` annotation These functions are specific as they are exist in JPQL only, but not in SQL like other JPQL functions where are usually similar SQL function/procedure at the DB side. Signed-off-by: Radek Felcman <[email protected]>
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@see #594