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Viewing changes to mixxx/lib/clucene-2.3.3.4/src/core/CLucene/search/CachingSpanFilter.h

  • Committer: RJ Ryan
  • Date: 2011-05-27 23:54:08 UTC
  • Revision ID: rryan@mit.edu-20110527235408-kepzw0zdxdhngsqr
Add clucene-2.3.3.4 to lib/

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mixxx/lib/clucene-2.3.3.4/src/core/CLucene/search/CachingSpanFilter.h
 
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/*------------------------------------------------------------------------------
 
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 * Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team
 
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 * 
 
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 * Distributable under the terms of either the Apache License (Version 2.0) or 
 
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 * the GNU Lesser General Public License, as specified in the COPYING file.
 
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 ------------------------------------------------------------------------------*/
 
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#ifndef _lucene_search_CachingSpanFilter_
 
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#define _lucene_search_CachingSpanFilter_
 
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#include "SpanFilter.h"
 
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CL_NS_DEF(search)
 
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/**
 
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 * Wraps another SpanFilter's result and caches it.  The purpose is to allow
 
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 * filters to simply filter, and then wrap with this class to add caching.
 
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 */
 
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class  CachingSpanFilter : public SpanFilter 
 
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{
 
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        struct Internal;
 
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        Internal* _internal;
 
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protected:
 
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    SpanFilter *        filter;
 
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    bool                deleteFilter;
 
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protected:
 
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    CachingSpanFilter( const CachingSpanFilter& copy );
 
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public:
 
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    /**
 
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     * @param filter Filter to cache results of
 
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     */
 
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    CachingSpanFilter( SpanFilter * filter, bool deleteFilter=true );
 
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    virtual ~CachingSpanFilter();
 
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    virtual Filter* clone() const;
 
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    virtual CL_NS(util)::BitSet* bits( CL_NS(index)::IndexReader * reader );
 
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    virtual SpanFilterResult * bitSpans( CL_NS(index)::IndexReader * reader );
 
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    virtual TCHAR* toString();
 
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private:
 
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    SpanFilterResult * getCachedResult( CL_NS(index)::IndexReader * reader );
 
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//     public boolean equals(Object o) {
 
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//       if (!(o instanceof CachingSpanFilter)) return false;
 
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//       return this.filter.equals(((CachingSpanFilter)o).filter);
 
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//     }
 
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//   
 
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//     public int hashCode() {
 
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//       return filter.hashCode() ^ 0x1117BF25;
 
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//     }
 
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};
 
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CL_NS_END
 
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#endif // _lucene_search_CachingSpanFilter_