| /* 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; |
| |
| __C__ |
| #include "Lucy/Search/Matcher.h" |
| |
| /* A wrapper for a Matcher which caches the result of Matcher_Get_Doc_ID(). |
| */ |
| typedef struct lucy_HeapedMatcherDoc { |
| lucy_Matcher *matcher; |
| int32_t doc; |
| } lucy_HeapedMatcherDoc; |
| |
| #ifdef LUCY_USE_SHORT_NAMES |
| #define HeapedMatcherDoc lucy_HeapedMatcherDoc |
| #endif |
| |
| __END_C__ |
| |
| /** Matcher which unions the doc id sets of other Matchers using a priority |
| * queue. |
| */ |
| |
| class Lucy::Search::ORMatcher inherits Lucy::Search::PolyMatcher { |
| |
| lucy_HeapedMatcherDoc **heap; |
| lucy_HeapedMatcherDoc **pool; /* Pool of HMDs to minimize mallocs */ |
| char *blob; /* single allocation for all HMDs */ |
| lucy_HeapedMatcherDoc *top_hmd; /* cached top elem */ |
| uint32_t size; |
| uint32_t max_size; |
| |
| inert incremented ORMatcher* |
| new(VArray *children); |
| |
| /** |
| * @param children An array of Matchers. |
| */ |
| inert incremented ORMatcher* |
| init(ORMatcher *self, VArray *children); |
| |
| public void |
| Destroy(ORMatcher *self); |
| |
| public int32_t |
| Next(ORMatcher *self); |
| |
| public int32_t |
| Advance(ORMatcher *self, int32_t target); |
| |
| public int32_t |
| Get_Doc_ID(ORMatcher *self); |
| } |
| |
| /** |
| * Union results of multiple Matchers. |
| * |
| * ORScorer collates the output of multiple scoring child Matchers, summing |
| * their scores whenever they match the same document. |
| */ |
| class Lucy::Search::ORScorer inherits Lucy::Search::ORMatcher { |
| |
| float *scores; |
| int32_t doc_id; |
| |
| inert incremented ORScorer* |
| new(VArray *children, Similarity *similarity); |
| |
| inert ORScorer* |
| init(ORScorer *self, VArray *children, Similarity *similarity); |
| |
| public void |
| Destroy(ORScorer *self); |
| |
| public int32_t |
| Next(ORScorer *self); |
| |
| public int32_t |
| Advance(ORScorer *self, int32_t target); |
| |
| public float |
| Score(ORScorer *self); |
| |
| public int32_t |
| Get_Doc_ID(ORScorer *self); |
| } |
| |
| |