org.codelibs.elasticsearch.taste.recommender.svd.NoPersistenceStrategy Maven / Gradle / Ivy

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/**
 * 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.codelibs.elasticsearch.taste.recommender.svd;

import java.io.IOException;

/**
 * A {@link PersistenceStrategy} which does nothing.
 */
public class NoPersistenceStrategy implements PersistenceStrategy {

    @Override
    public Factorization load() throws IOException {
        return null;
    }

    @Override
    public void maybePersist(final Factorization factorization)
            throws IOException {
        // do nothing.
    }

}