/*
* Copyright 2004 The Apache Software Foundation
*
* Licensed 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 IndexReaderLucene.Net.Index.IndexReader;
namespace Lucene.Net.Search{
/// <summary> Expert: returns a comparator for sorting ScoreDocs.
///
/// <p>Created: Apr 21, 2004 3:49:28 PM
///
/// </summary>
/// <author> Tim Jones
/// </author>
/// <version> $Id: SortComparatorSource.java 150348 2004-05-19 23:05:27Z tjones $
/// </version>
/// <since> 1.4
/// </since>
public interface SortComparatorSource
{
/// <summary> Creates a comparator for the field in the given index.</summary>
/// <param name="reader">Index to create comparator for.
/// </param>
/// <param name="fieldname"> Field to create comparator for.
/// </param>
/// <returns> Comparator of ScoreDoc objects.
/// </returns>
/// <throws> IOException If an error occurs reading the index. </throws>
ScoreDocComparator NewComparator(IndexReader reader, System.String fieldname);
}
}
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