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/*
* Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team
*
* Distributable under the terms of either the Apache License (Version 2.0) or
* the GNU Lesser General Public License, as specified in the COPYING file.
*
* Changes are Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies), all rights reserved.
*/
#ifndef _lucene_search_IndexSearcher_
#define _lucene_search_IndexSearcher_
#if defined(_LUCENE_PRAGMA_ONCE)
# pragma once
#endif
#include <QtCore/QString>
#include "SearchHeader.h"
#include "CLucene/store/Directory.h"
#include "CLucene/document/Document.h"
#include "CLucene/index/IndexReader.h"
#include "CLucene/index/Term.h"
#include "CLucene/util/BitSet.h"
#include "HitQueue.h"
#include "FieldSortedHitQueue.h"
CL_NS_DEF(search)
/** Implements search over a single IndexReader.
*
* <p>Applications usually need only call the inherited {@link search(Query*)}
* or {@link search(Query*,Filter*)} methods.
*/
class IndexSearcher:public Searcher{
CL_NS(index)::IndexReader* reader;
bool readerOwner;
public:
/// Creates a searcher searching the index in the named directory.
IndexSearcher(const QString& path);
/// Creates a searcher searching the index in the specified directory.
IndexSearcher(CL_NS(store)::Directory* directory);
/// Creates a searcher searching the provided index.
IndexSearcher(CL_NS(index)::IndexReader* r);
~IndexSearcher();
/// Frees resources associated with this Searcher.
void close();
int32_t docFreq(const CL_NS(index)::Term* term) const;
bool doc(int32_t i, CL_NS(document)::Document* document);
int32_t maxDoc() const;
TopDocs* _search(Query* query, Filter* filter, const int32_t nDocs);
TopFieldDocs* _search(Query* query, Filter* filter, const int32_t nDocs,
const Sort* sort);
void _search(Query* query, Filter* filter, HitCollector* results);
CL_NS(index)::IndexReader* getReader() {
return reader; }
Query* rewrite(Query* original);
void explain(Query* query, int32_t doc, Explanation* ret);
};
CL_NS_END
#endif
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