| namespace Lucene.Net.Codecs |
| { |
| /* |
| * 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 SegmentReadState = Lucene.Net.Index.SegmentReadState; |
| using SegmentWriteState = Lucene.Net.Index.SegmentWriteState; |
| |
| /// <summary> |
| /// Provides a <see cref="Codecs.PostingsReaderBase"/> and |
| /// <see cref="Codecs.PostingsWriterBase"/>. |
| /// <para/> |
| /// @lucene.experimental |
| /// </summary> |
| |
| // TODO: find a better name; this defines the API that the |
| // terms dict impls use to talk to a postings impl. |
| // TermsDict + PostingsReader/WriterBase == PostingsConsumer/Producer |
| |
| // can we clean this up and do this some other way? |
| // refactor some of these classes and use covariant return? |
| public abstract class PostingsBaseFormat |
| { |
| /// <summary> |
| /// Unique name that's used to retrieve this codec when |
| /// reading the index. |
| /// </summary> |
| public string Name { get; private set; } |
| |
| /// <summary> |
| /// Sole constructor. </summary> |
| protected internal PostingsBaseFormat(string name) |
| { |
| this.Name = name; |
| } |
| |
| /// <summary> |
| /// Creates the <see cref="Codecs.PostingsReaderBase"/> for this |
| /// format. |
| /// </summary> |
| public abstract PostingsReaderBase PostingsReaderBase(SegmentReadState state); |
| |
| /// <summary> |
| /// Creates the <see cref="Codecs.PostingsWriterBase"/> for this |
| /// format. |
| /// </summary> |
| public abstract PostingsWriterBase PostingsWriterBase(SegmentWriteState state); |
| } |
| } |