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CachingSpanFilter.h
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1 // Copyright (c) 2009-2011 Alan Wright. All rights reserved.
3 // Distributable under the terms of either the Apache License (Version 2.0)
4 // or the GNU Lesser General Public License.
6 
7 #ifndef CACHINGSPANFILTER_H
8 #define CACHINGSPANFILTER_H
9 
10 #include "SpanFilter.h"
11 #include "CachingWrapperFilter.h"
12 
13 namespace Lucene
14 {
17  class LPPAPI CachingSpanFilter : public SpanFilter
18  {
19  public:
22  virtual ~CachingSpanFilter();
23 
25 
26  protected:
27  SpanFilterPtr filter;
29 
30  public:
31  // for testing
32  int32_t hitCount;
33  int32_t missCount;
34 
35  public:
36  virtual DocIdSetPtr getDocIdSet(IndexReaderPtr reader);
37  virtual SpanFilterResultPtr bitSpans(IndexReaderPtr reader);
38 
39  virtual String toString();
40  virtual bool equals(LuceneObjectPtr other);
41  virtual int32_t hashCode();
42 
43  protected:
44  SpanFilterResultPtr getCachedResult(IndexReaderPtr reader);
45  };
46 }
47 
48 #endif

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