I'm looking at ANN-422
In HA, the target is usually inferred from the API (generics), and can
be overridden in all associations through targetEntity (
@ManyToOne(targetEntity...) )
currently, you cannot override the target for a component, nor you can
override it for a <map-key-many-to-many/>
Two solutions
1.
Define a @Target annotation that will work like the targetEntity for
association and also handle components (@Embedded)
Define a @MapKeyTarget to override the <map-key-many-to-many/> or
<map-key/> (composite-element) target
2.
Define a @Target annotation that will work like the targetEntity for
association and also handle components (@Embedded)
add a targetElement to @MapKey and @MapKeyManyToMany annotations
I don't like much 2 because it mixes physical concerns and logical ones,
but it reduce the amount of needed annotations
Note that I hope the future spec will hopefully handle all cases nicely
(ie add a targetElement in @Embedded), @MapKey should go to back the
drawing board from a spec POV so we can think of something clean from
the begining.
Any preference, or alternative solution?
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