EmptyCollector.cs

Go to the documentation of this file.

/*
 *
 * 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.
 *
*/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Lucene.Net.Search;

namespace Lucene.Net.Index.Memory
{
    public partial class MemoryIndex
    {
        /// <summary>
        /// Fills the given float array with the values
        /// as the collector scores the search
        /// </summary>
        private sealed class FillingCollector : Collector
        {
            private readonly float[] _scores;
            private Scorer _scorer;

            public FillingCollector(float[] scores)
            {
                _scores = scores;
            }

            public override void SetScorer(Scorer scorer)
            {
                _scorer = scorer;
            }

            public override void Collect(int doc)
            {
                _scores[0] = _scorer.Score();
            }

            public override void SetNextReader(IndexReader reader, int docBase)
            { }

            public override bool AcceptsDocsOutOfOrder
            {
                get { return true; }
            }
        }
    }
}