[CAY-2231] Support for collections in new functional expressions

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.M5
• Component/s: Core Library
• Assignee: Nikita Timofeev
• Reporter: Nikita Timofeev
• Created: 15/Feb/17 14:50
• Updated: 16/Feb/17 12:57
• Resolved: 16/Feb/17 12:57

Description

New functional expressions doesn't work with ToMany collections.
For example this will fail with ExpressionException:

Expression exp = Artist.PAINTING_ARRAY
     .dot(Painting.PAINTING_TITLE)
     .substring(1, 1)
     .getExpression();
        
Artist artist = ObjectSelect.query(Artist.class)
     .orderBy("db:ARTIST_ID")
     .selectFirst(context);

Object res = exp.evaluate(artist);