[GitHub] [cayenne] stariy95 opened a new pull request #403: CAY-2565 New PK properties

[GitBox <gi...@apache.org>]

stariy95 opened a new pull request #403:  CAY-2565 New PK properties
URL: https://github.com/apache/cayenne/pull/403
 
 
   This PR introduces new expression: `dbid:path`. It's essentially a combination of Obj path and DB path. This allows using special properties for primary keys in all places where properties for object attributes can be used without mapping them explicitly.
   
   Example:
   ```java
   ObjectSelect.query(Painting.class)
           .orderBy(Painting.TO_ARTIST.dot(Artist.ARTIST_ID_PK_PROPERTY).asc())
           .select(context);
   
   Artist.PAINTING_ARRAY.dot(Painting.PAINTING_ID_PK_PROPERTY).gt(13)
           .filterObjects(artists);
   ```

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