/*
 * LensKit, a reference implementation of recommender algorithms.
 * Copyright 2010-2011 Regents of the University of Minnesota
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
package org.grouplens.lenskit.knn.item;

import org.grouplens.lenskit.RatingPredictor;
import org.grouplens.lenskit.data.context.RatingBuildContext;

import com.google.inject.Inject;
import com.google.inject.Provider;

/**
 * Provider for item-item models that builds them with a model modelBuilder.
 * @author Michael Ekstrand <ekstrand@cs.umn.edu>
 *
 */
public class ItemItemModelProvider implements Provider<ItemItemModel> {
    private ItemItemModelBuilder modelBuilder;
    private RatingBuildContext buildContext;
    private RatingPredictor baselinePredictor;
    
    @Inject
    public ItemItemModelProvider(ItemItemModelBuilder bldr, RatingBuildContext context, RatingPredictor baseline) {
        modelBuilder = bldr;
        buildContext = context;
        baselinePredictor = baseline;
    }
    
    @Override
    public ItemItemModel get() {
        return modelBuilder.build(buildContext, baselinePredictor);
    }
}

@@ -1005,16 +1005,71 @@
 Context;
+%0Aimport org.grouplens.lenskit.params.BaselinePredictor;
 %0A%0Aimport
@@ -1584,16 +1584,47 @@
 context,
+%0A            @BaselinePredictor
  RatingP

Make item-item model provider depend on baseline predictor.