/* 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_TERMMATCHER
#include "Lucy/Util/ToolSet.h"
#include "Lucy/Search/TermMatcher.h"
#include "Lucy/Index/Posting.h"
#include "Lucy/Index/PostingList.h"
#include "Lucy/Index/Similarity.h"
#include "Lucy/Search/Compiler.h"
TermMatcher*
TermMatcher_init(TermMatcher *self, Similarity *similarity, PostingList *plist,
Compiler *compiler) {
Matcher_init((Matcher*)self);
TermMatcherIVARS *const ivars = TermMatcher_IVARS(self);
// Assign.
ivars->sim = (Similarity*)INCREF(similarity);
ivars->plist = (PostingList*)INCREF(plist);
ivars->compiler = (Compiler*)INCREF(compiler);
ivars->weight = Compiler_Get_Weight(compiler);
// Init.
ivars->posting = NULL;
return self;
}
void
TermMatcher_Destroy_IMP(TermMatcher *self) {
TermMatcherIVARS *const ivars = TermMatcher_IVARS(self);
DECREF(ivars->sim);
DECREF(ivars->plist);
DECREF(ivars->compiler);
SUPER_DESTROY(self, TERMMATCHER);
}
int32_t
TermMatcher_Next_IMP(TermMatcher* self) {
TermMatcherIVARS *const ivars = TermMatcher_IVARS(self);
PostingList *const plist = ivars->plist;
if (plist) {
int32_t doc_id = PList_Next(plist);
if (doc_id) {
ivars->posting = PList_Get_Posting(plist);
return doc_id;
}
else {
// Reclaim resources a little early.
DECREF(plist);
ivars->plist = NULL;
return 0;
}
}
return 0;
}
int32_t
TermMatcher_Advance_IMP(TermMatcher *self, int32_t target) {
TermMatcherIVARS *const ivars = TermMatcher_IVARS(self);
PostingList *const plist = ivars->plist;
if (plist) {
int32_t doc_id = PList_Advance(plist, target);
if (doc_id) {
ivars->posting = PList_Get_Posting(plist);
return doc_id;
}
else {
// Reclaim resources a little early.
DECREF(plist);
ivars->plist = NULL;
return 0;
}
}
return 0;
}
int32_t
TermMatcher_Get_Doc_ID_IMP(TermMatcher* self) {
TermMatcherIVARS *const ivars = TermMatcher_IVARS(self);
return Post_Get_Doc_ID(ivars->posting);
}