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Diffstat (limited to '3rdparty/clucene/src/CLucene/search/FilteredTermEnum.h')
-rw-r--r-- | 3rdparty/clucene/src/CLucene/search/FilteredTermEnum.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/3rdparty/clucene/src/CLucene/search/FilteredTermEnum.h b/3rdparty/clucene/src/CLucene/search/FilteredTermEnum.h new file mode 100644 index 000000000..035ae384e --- /dev/null +++ b/3rdparty/clucene/src/CLucene/search/FilteredTermEnum.h @@ -0,0 +1,61 @@ +/*------------------------------------------------------------------------------ +* 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_FilteredTermEnum_ +#define _lucene_search_FilteredTermEnum_ + +#if defined(_LUCENE_PRAGMA_ONCE) +# pragma once +#endif + +#include "CLucene/index/Term.h" +#include "CLucene/index/Terms.h" + +CL_NS_DEF(search) + //FilteredTermEnum is an abstract class for enumerating a subset of all terms. + // + //Term enumerations are always ordered by term->compareTo(). Each term in + //the enumeration is greater than all that precede it. + + class FilteredTermEnum: public CL_NS(index)::TermEnum { + public: + //Constructor + FilteredTermEnum(); + //Destructor + virtual ~FilteredTermEnum(); + + //Equality measure on the term + virtual qreal difference() = 0; + + //Returns the docFreq of the current Term in the enumeration. + int32_t docFreq() const ; + + //Increments the enumeration to the next element + bool next() ; + + //Returns a pointer to the current Term in the enumeration. + CL_NS(index)::Term* term(); + CL_NS(index)::Term* term(bool pointer); + + //Closes the enumeration to further activity, freeing resources. + void close(); + + protected: + //Equality compare on the term */ + virtual bool termCompare(CL_NS(index)::Term* term) = 0; + + //Indiciates the end of the enumeration has been reached + virtual bool endEnum() = 0; + + void setEnum(CL_NS(index)::TermEnum* actualEnum) ; + + private: + CL_NS(index)::Term* currentTerm; + CL_NS(index)::TermEnum* actualEnum; + + }; +CL_NS_END +#endif |