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CachingTokenFilter.h
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1 // Copyright (c) 2009-2014 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 public:
21 CachingTokenFilter(const TokenStreamPtr& input);
22 virtual ~CachingTokenFilter();
23
24 LUCENE_CLASS(CachingTokenFilter);
25
26 protected:
27 Collection<AttributeSourceStatePtr> cache;
28 Collection<AttributeSourceStatePtr>::iterator iterator;
29 AttributeSourceStatePtr finalState;
30
31 public:
32 virtual bool incrementToken();
33 virtual void end();
34 virtual void reset();
35
36 protected:
37 void fillCache();
38 };
39
40 }
41
42 #endif
LUCENE_CLASS
#define LUCENE_CLASS(Name)
Definition: LuceneObject.h:24
TokenFilter.h
Lucene::CachingTokenFilter
This class can be used if the token attributes of a TokenStream are intended to be consumed more than...
Definition: CachingTokenFilter.h:19
Lucene::CachingTokenFilter::fillCache
void fillCache()
Lucene::CachingTokenFilter::~CachingTokenFilter
virtual ~CachingTokenFilter()
Lucene::CachingTokenFilter::reset
virtual void reset()
Reset the filter as well as the input TokenStream.
Lucene::CachingTokenFilter::end
virtual void end()
Performs end-of-stream operations, if any, and calls then end() on the input TokenStream....
Lucene::CachingTokenFilter::incrementToken
virtual bool incrementToken()
Consumers (ie., IndexWriter) use this method to advance the stream to the next token....
Lucene::CachingTokenFilter::cache
Collection< AttributeSourceStatePtr > cache
Definition: CachingTokenFilter.h:24
Lucene::CachingTokenFilter::finalState
AttributeSourceStatePtr finalState
Definition: CachingTokenFilter.h:29
Lucene::CachingTokenFilter::iterator
Collection< AttributeSourceStatePtr >::iterator iterator
Definition: CachingTokenFilter.h:28
Lucene::CachingTokenFilter::CachingTokenFilter
CachingTokenFilter(const TokenStreamPtr &input)
Lucene::Collection< AttributeSourceStatePtr >
Lucene::TokenFilter
A TokenFilter is a TokenStream whose input is another TokenStream.
Definition: TokenFilter.h:18
Lucene
Definition: AbstractAllTermDocs.h:12
Lucene::TokenStreamPtr
boost::shared_ptr< TokenStream > TokenStreamPtr
Definition: LuceneTypes.h:63
Lucene::AttributeSourceStatePtr
boost::shared_ptr< AttributeSourceState > AttributeSourceStatePtr
Definition: LuceneTypes.h:521

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