/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.mahout.cf.taste.impl.recommender.svd;
import com.google.common.base.Preconditions;
import org.apache.mahout.cf.taste.impl.model.GenericPreference;
final class SVDPreference extends GenericPreference {
private double cache;
SVDPreference(long userID, long itemID, float value, double cache) {
super(userID, itemID, value);
setCache(cache);
}
public double getCache() {
return cache;
}
public void setCache(double value) {
Preconditions.checkArgument(!Double.isNaN(value), "NaN cache value");
this.cache = value;
}
}