/*
 * Licensed to Crate under one or more contributor license agreements.
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.  Crate 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.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial
 * agreement.
 */

package io.crate.operation.collect.collectors;

import org.apache.lucene.search.DocIdSetIterator;
import org.apache.lucene.search.Scorer;

import java.io.IOException;

/**
 * Dummy {@link org.apache.lucene.search.Scorer} implementation just for passing the
 * <code>score</code> float value of a {@link org.apache.lucene.search.ScoreDoc} to a
 * {@link io.crate.operation.reference.doc.lucene.ScoreCollectorExpression}.
 */
class DummyScorer extends Scorer {

    private float score;

    public DummyScorer() {
        super(null);
    }

    public void score(float score) {
        this.score = score;
    }

    @Override
    public float score() throws IOException {
        return score;
    }

    @Override
    public int freq() throws IOException {
        return 0;
    }

    @Override
    public DocIdSetIterator iterator() {
        return null;
    }

    @Override
    public int docID() {
        return 0;
    }
}