How to build Exists Expression with a sub expression on the child entity?

[Ricardo Parada]

Hi all,

Another question I have is regarding EXISTS expressions.  I’m not sure if I’m 
using the API correctly, but I was thinking it would be something like this.  
Using the entities from the Tutorial, let’s say I want to fetch the Artist’s 
that have a painting starting with the letter ‘G’:

Expression e = Artist.PAINTINGS.exists(Painting.NAME.like(“G%”));

But I’m getting a syntax error.