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CachingTokenFilter.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 CACHINGTOKENFILTER_H
8 #define CACHINGTOKENFILTER_H
9
10 #include "TokenFilter.h"
11
12 namespace Lucene
13 {
19 class LPPAPI CachingTokenFilter : public TokenFilter
20 {
21 public:
22 CachingTokenFilter(TokenStreamPtr input);
23 virtual ~CachingTokenFilter();
24
25 LUCENE_CLASS(CachingTokenFilter);
26
27 protected:
28 Collection<AttributeSourceStatePtr> cache;
29 Collection<AttributeSourceStatePtr>::iterator iterator;
30 AttributeSourceStatePtr finalState;
31
32 public:
33 virtual bool incrementToken();
34 virtual void end();
35 virtual void reset();
36
37 protected:
38 void fillCache();
39 };
40 }
41
42 #endif

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