| using System; |
| |
| namespace Lucene.Net.Index |
| { |
| /* |
| * 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. |
| */ |
| |
| // javadocs |
| using BytesRef = Lucene.Net.Util.BytesRef; |
| |
| // LUCENENET specific - converted constants from DocsAndPositionsEnum |
| // into a flags enum. |
| [Flags] |
| public enum DocsAndPositionsFlags |
| { |
| /// <summary> |
| /// Flag to pass to <see cref="TermsEnum.DocsAndPositions(Util.IBits, DocsAndPositionsEnum, DocsAndPositionsFlags)"/> |
| /// if you require that no offsets and payloads will be returned. |
| /// </summary> |
| NONE = 0x0, |
| |
| /// <summary> |
| /// Flag to pass to <see cref="TermsEnum.DocsAndPositions(Util.IBits, DocsAndPositionsEnum, DocsAndPositionsFlags)"/> |
| /// if you require offsets in the returned enum. |
| /// </summary> |
| OFFSETS = 0x1, // LUCENENET specific - renamed from FLAG_OFFSETS since FLAG_ makes it redundant |
| |
| /// <summary> |
| /// Flag to pass to <see cref="TermsEnum.DocsAndPositions(Util.IBits, DocsAndPositionsEnum, DocsAndPositionsFlags)"/> |
| /// if you require payloads in the returned enum. |
| /// </summary> |
| PAYLOADS = 0x2 // LUCENENET specific - renamed from FLAG_PAYLOADS since FLAG_ makes it redundant |
| } |
| |
| |
| /// <summary> |
| /// Also iterates through positions. </summary> |
| public abstract class DocsAndPositionsEnum : DocsEnum |
| { |
| // LUCENENET specific - made flags into their own [Flags] enum named DocsAndPositionsFlags and de-nested from this type |
| |
| /// <summary> |
| /// Sole constructor. (For invocation by subclass |
| /// constructors, typically implicit.) |
| /// </summary> |
| protected DocsAndPositionsEnum() |
| { |
| } |
| |
| /// <summary> |
| /// Returns the next position. You should only call this |
| /// up to <see cref="DocsEnum.Freq"/> times else |
| /// the behavior is not defined. If positions were not |
| /// indexed this will return -1; this only happens if |
| /// offsets were indexed and you passed needsOffset=true |
| /// when pulling the enum. |
| /// </summary> |
| public abstract int NextPosition(); |
| |
| /// <summary> |
| /// Returns start offset for the current position, or -1 |
| /// if offsets were not indexed. |
| /// </summary> |
| public abstract int StartOffset { get; } |
| |
| /// <summary> |
| /// Returns end offset for the current position, or -1 if |
| /// offsets were not indexed. |
| /// </summary> |
| public abstract int EndOffset { get; } |
| |
| /// <summary> |
| /// Returns the payload at this position, or <c>null</c> if no |
| /// payload was indexed. You should not modify anything |
| /// (neither members of the returned <see cref="BytesRef"/> nor bytes |
| /// in the <see cref="T:byte[]"/>). |
| /// </summary> |
| public abstract BytesRef GetPayload(); |
| } |
| } |