/usr/include/CLucene/highlighter/QueryTermExtractor.h is in libclucene-dev 2.3.3.4-4build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright 2002-2004 The Apache Software Foundation
*
* Licensed 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.
*/
#ifndef _lucene_search_highlight_querytermextractor_
#define _lucene_search_highlight_querytermextractor_
CL_CLASS_DEF(search, Query)
CL_CLASS_DEF(search, BooleanQuery)
CL_CLASS_DEF(search, PhraseQuery)
CL_CLASS_DEF(search, TermQuery)
CL_CLASS_DEF(index, IndexReader)
CL_CLASS_DEF(index, Term)
#include "WeightedTerm.h"
CL_NS_DEF2(search,highlight)
/**
* Utility class used to extract the terms used in a query, plus any weights.
* This class will not find terms for MultiTermQuery, RangeQuery and PrefixQuery classes
* so the caller must pass a rewritten query (see Query.rewrite) to obtain a list of
* expanded terms.
*
*/
class CLUCENE_CONTRIBS_EXPORT QueryTermExtractor
{
QueryTermExtractor(){
}
public:
/**
* Extracts all terms texts of a given Query into an returned array of WeightedTerms
*
* @param query Query to extract term texts from
* @param prohibited <code>true</code> to extract "prohibited" terms, too
* @param fieldName field name used for filtering query terms, MUST be interned prior to this call
* @return an array of the terms used in a query, plus their weights.Memory owned by the caller
*/
static WeightedTerm** getTerms(const Query *query, bool prohibited = false, const TCHAR* fieldName = NULL);
/**
* Extracts all terms texts of a given Query into an array of WeightedTerms
*
* @param query Query to extract term texts from
* @param reader used to compute IDF which can be used to a) score selected fragments better
* b) use graded highlights eg chaning intensity of font color
* @param fieldName the field on which Inverse Document Frequency (IDF) calculations are based
* @return an array of the terms used in a query, plus their weights.
*/
static WeightedTerm** getIdfWeightedTerms(const Query* query, CL_NS(index)::IndexReader* reader, const TCHAR* fieldName);
/**
* Extracts all terms texts of a given Query into given array of WeightedTerms
*
* @param query Query to extract term texts from
* @param prohibited <code>true</code> to extract "prohibited" terms, too
* @param fieldName field name used for filtering query terms, MUST be interned prior to this call
* @return an array of the terms used in a query, plus their weights.Memory owned by the caller
*/
static void getTerms(const Query * query, WeightedTermList*, bool prohibited = false, const TCHAR* fieldName = NULL);
static void getTermsFromBooleanQuery(const BooleanQuery * query, WeightedTermList* terms, bool prohibited, const TCHAR* fieldName);
// static void getTermsFromFilteredQuery(const FilteredQuery * query, WeightedTermList* terms);
};
CL_NS_END2
#endif
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