| /* 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. |
| */ |
| |
| parcel Lucy; |
| |
| /** Read Lexicon data. |
| * |
| * LexiconReader reads term dictionary information. |
| */ |
| abstract class Lucy::Index::LexiconReader cnick LexReader |
| inherits Lucy::Index::DataReader { |
| |
| inert LexiconReader* |
| init(LexiconReader *self, Schema *schema = NULL, Folder *folder = NULL, |
| Snapshot *snapshot = NULL, VArray *segments = NULL, |
| int32_t seg_tick = -1); |
| |
| /** Return a new Lexicon for the given <code>field</code>. Will return |
| * NULL if either the field is not indexed, or if no documents contain a |
| * value for the field. |
| * |
| * @param field Field name. |
| * @param term Pre-locate the Lexicon to this term. |
| */ |
| public abstract incremented nullable Lexicon* |
| Lexicon(LexiconReader *self, const CharBuf *field, Obj *term = NULL); |
| |
| /** Return the number of documents where the specified term is present. |
| */ |
| public abstract uint32_t |
| Doc_Freq(LexiconReader *self, const CharBuf *field, Obj *term); |
| |
| /** If the term can be found, return a term info, otherwise return NULL. |
| */ |
| abstract incremented nullable TermInfo* |
| Fetch_Term_Info(LexiconReader *self, const CharBuf *field, Obj *term); |
| |
| /** Return a LexiconReader which merges the output of other |
| * LexiconReaders. |
| * |
| * @param readers An array of LexiconReaders. |
| * @param offsets Doc id start offsets for each reader. |
| */ |
| public incremented nullable LexiconReader* |
| Aggregator(LexiconReader *self, VArray *readers, I32Array *offsets); |
| } |
| |
| class Lucy::Index::PolyLexiconReader cnick PolyLexReader |
| inherits Lucy::Index::LexiconReader { |
| |
| VArray *readers; |
| I32Array *offsets; |
| |
| inert incremented PolyLexiconReader* |
| new(VArray *readers, I32Array *offsets); |
| |
| inert PolyLexiconReader* |
| init(PolyLexiconReader *self, VArray *readers, I32Array *offsets); |
| |
| public incremented nullable Lexicon* |
| Lexicon(PolyLexiconReader *self, const CharBuf *field, Obj *term = NULL); |
| |
| public uint32_t |
| Doc_Freq(PolyLexiconReader *self, const CharBuf *field, Obj *term); |
| |
| public void |
| Close(PolyLexiconReader *self); |
| |
| public void |
| Destroy(PolyLexiconReader *self); |
| } |
| |
| class Lucy::Index::DefaultLexiconReader cnick DefLexReader |
| inherits Lucy::Index::LexiconReader { |
| |
| VArray *lexicons; |
| |
| inert incremented DefaultLexiconReader* |
| new(Schema *schema, Folder *folder, Snapshot *snapshot, VArray *segments, |
| int32_t seg_tick); |
| |
| inert DefaultLexiconReader* |
| init(DefaultLexiconReader *self, Schema *schema, Folder *folder, |
| Snapshot *snapshot, VArray *segments, int32_t seg_tick); |
| |
| public incremented nullable Lexicon* |
| Lexicon(DefaultLexiconReader *self, const CharBuf *field, |
| Obj *term = NULL); |
| |
| /** Return the number of documents in which the term appears. |
| */ |
| public uint32_t |
| Doc_Freq(DefaultLexiconReader *self, const CharBuf *field, Obj *term); |
| |
| incremented nullable TermInfo* |
| Fetch_Term_Info(DefaultLexiconReader *self, const CharBuf *field, |
| Obj *term); |
| |
| public void |
| Close(DefaultLexiconReader *self); |
| |
| public void |
| Destroy(DefaultLexiconReader *self); |
| } |
| |
| |