| 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. |
| */ |
| |
| /// <summary> |
| /// Interface for queries that can be nested as subqueries |
| /// into a span near. |
| /// </summary> |
| public interface IDistanceSubQuery |
| { |
| /// <summary> |
| /// When <see cref="DistanceSubQueryNotAllowed()"/> returns non null, the reason why the subquery |
| /// is not allowed as a distance subquery is returned. |
| /// <para/>When <see cref="DistanceSubQueryNotAllowed()"/> returns null <see cref="AddSpanQueries(SpanNearClauseFactory)"/> can be used |
| /// in the creation of the span near clause for the subquery. |
| /// </summary> |
| string DistanceSubQueryNotAllowed(); |
| |
| void AddSpanQueries(SpanNearClauseFactory sncf); |
| } |
| } |