core/Lucy/Search/TermMatcher.cfh

/* 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;

/**
 * Base class for TermMatchers.
 *
 * Each subclass of Posting is associated with a corresponding subclass of
 * TermMatcher.
 */
class Lucy::Search::TermMatcher inherits Lucy::Search::Matcher {

    float           weight;
    Compiler       *compiler;
    Similarity     *sim;
    PostingList    *plist;
    Posting        *posting;

    inert TermMatcher*
    init(TermMatcher *self, Similarity *similarity, PostingList *posting_list,
         Compiler *compiler);

    public void
    Destroy(TermMatcher *self);

    public int32_t
    Next(TermMatcher* self);

    public int32_t
    Advance(TermMatcher* self, int32_t target);

    public int32_t
    Get_Doc_ID(TermMatcher* self);
}

__C__
#define LUCY_TERMMATCHER_SCORE_CACHE_SIZE 32
#ifdef LUCY_USE_SHORT_NAMES
  #define TERMMATCHER_SCORE_CACHE_SIZE LUCY_TERMMATCHER_SCORE_CACHE_SIZE
#endif
__END_C__