src/Lucene.Net.QueryParser/Surround/Query/SrndBooleanQuery.cs

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

namespace Lucene.Net.QueryParsers.Surround.Query
{
    /*
     * 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.
     */

    internal class SrndBooleanQuery
    {
        public static void AddQueriesToBoolean(
            BooleanQuery bq,
            IList<Search.Query> queries,
            Occur occur)
        {
            foreach (var query in queries)
            {
                bq.Add(query, occur);
            }
        }

        public static Search.Query MakeBooleanQuery(
            IList<Search.Query> queries,
            Occur occur)
        {
            if (queries.Count <= 1)
            {
                throw new InvalidOperationException("Too few subqueries: " + queries.Count);
            }
            BooleanQuery bq = new BooleanQuery();
            AddQueriesToBoolean(bq, queries, occur);
            return bq;
        }
    }
}