| /* 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. |
| */ |
| |
| #define C_LUCY_FILTERMATCHER |
| #include "Lucy/Util/ToolSet.h" |
| |
| #include "LucyX/Search/FilterMatcher.h" |
| |
| FilterMatcher* |
| FilterMatcher_new(BitVector *bits, int32_t doc_max) { |
| FilterMatcher *self = (FilterMatcher*)VTable_Make_Obj(FILTERMATCHER); |
| return FilterMatcher_init(self, bits, doc_max); |
| } |
| |
| FilterMatcher* |
| FilterMatcher_init(FilterMatcher *self, BitVector *bits, int32_t doc_max) { |
| Matcher_init((Matcher*)self); |
| |
| // Init. |
| self->doc_id = 0; |
| |
| // Assign. |
| self->bits = (BitVector*)INCREF(bits); |
| self->doc_max = doc_max; |
| |
| return self; |
| } |
| |
| void |
| FilterMatcher_destroy(FilterMatcher *self) { |
| DECREF(self->bits); |
| SUPER_DESTROY(self, FILTERMATCHER); |
| } |
| |
| int32_t |
| FilterMatcher_next(FilterMatcher* self) { |
| do { |
| if (++self->doc_id > self->doc_max) { |
| self->doc_id--; |
| return 0; |
| } |
| } while (!BitVec_Get(self->bits, self->doc_id)); |
| return self->doc_id; |
| } |
| |
| int32_t |
| FilterMatcher_skip_to(FilterMatcher* self, int32_t target) { |
| self->doc_id = target - 1; |
| return FilterMatcher_next(self); |
| } |
| |
| float |
| FilterMatcher_score(FilterMatcher* self) { |
| UNUSED_VAR(self); |
| return 0.0f; |
| } |
| |
| int32_t |
| FilterMatcher_get_doc_id(FilterMatcher* self) { |
| return self->doc_id; |
| } |
| |
| |