ALS-WR Predictions

Hi All,

I'm new to mahout so thanks up front for the help. I'm running ALS-WR on a
sparse matrix of movies and items and getting some recommendations out.
However I want to predict user preference. I noticed there was a
predictFromFactorization
in previous versions but seems to have been removed.

What's the best approach I should take using 0.8?

Thanks
Stuart