/*------------------------------------------------------------------------------ | |
* 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. | |
------------------------------------------------------------------------------*/ | |
#ifndef _lucene_search_WildcardQuery_ | |
#define _lucene_search_WildcardQuery_ | |
#if defined(_LUCENE_PRAGMA_ONCE) | |
# pragma once | |
#endif | |
#include "CLucene/index/IndexReader.h" | |
#include "CLucene/index/Term.h" | |
#include "MultiTermQuery.h" | |
#include "WildcardTermEnum.h" | |
CL_NS_DEF(search) | |
/** Implements the wildcard search query. Supported wildcards are <code>*</code>, which | |
* matches any character sequence (including the empty one), and <code>?</code>, | |
* which matches any single character. Note this query can be slow, as it | |
* needs to iterate over all terms. In order to prevent extremely slow WildcardQueries, | |
* a Wildcard term must not start with one of the wildcards <code>*</code> or | |
* <code>?</code>. | |
* | |
* @see WildcardTermEnum | |
*/ | |
class WildcardQuery: public MultiTermQuery { | |
protected: | |
FilteredTermEnum* getEnum(CL_NS(index)::IndexReader* reader); | |
WildcardQuery(const WildcardQuery& clone); | |
public: | |
WildcardQuery(CL_NS(index)::Term* term); | |
~WildcardQuery(); | |
//Returns the string "WildcardQuery" | |
const TCHAR* getQueryName() const; | |
static const TCHAR* getClassName(); | |
size_t hashCode() const; | |
bool equals(Query* other) const; | |
Query* clone() const; | |
}; | |
class WildcardFilter: public Filter | |
{ | |
private: | |
CL_NS(index)::Term* term; | |
protected: | |
WildcardFilter( const WildcardFilter& copy ); | |
public: | |
WildcardFilter(CL_NS(index)::Term* term); | |
~WildcardFilter(); | |
/** Returns a BitSet with true for documents which should be permitted in | |
search results, and false for those that should not. */ | |
CL_NS(util)::BitSet* bits( CL_NS(index)::IndexReader* reader ); | |
Filter* clone() const; | |
TCHAR* toString(); | |
}; | |
CL_NS_END | |
#endif |