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ByteFieldSource.h
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1
2// 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 BYTEFIELDSOURCE_H
8#define BYTEFIELDSOURCE_H
9
10#include "FieldCacheSource.h"
11
12namespace Lucene {
13
24class LPPAPI ByteFieldSource : public FieldCacheSource {
25public:
27 ByteFieldSource(const String& field, const ByteParserPtr& parser = ByteParserPtr());
29
31
32protected:
34
35public:
36 virtual String description();
37 virtual DocValuesPtr getCachedFieldValues(const FieldCachePtr& cache, const String& field, const IndexReaderPtr& reader);
38 virtual bool cachedFieldSourceEquals(const FieldCacheSourcePtr& other);
39 virtual int32_t cachedFieldSourceHashCode();
40};
41
42}
43
44#endif
#define LUCENE_CLASS(Name)
Definition LuceneObject.h:24
Obtains byte field values from the FieldCache using getBytes() and makes those values available as ot...
Definition ByteFieldSource.h:24
virtual bool cachedFieldSourceEquals(const FieldCacheSourcePtr &other)
Check if equals to another FieldCacheSource, already knowing that cache and field are equal.
ByteFieldSource(const String &field, const ByteParserPtr &parser=ByteParserPtr())
Create a cached byte field source with a specific string-to-byte parser.
virtual String description()
Description of field, used in explain()
ByteParserPtr parser
Definition ByteFieldSource.h:33
virtual DocValuesPtr getCachedFieldValues(const FieldCachePtr &cache, const String &field, const IndexReaderPtr &reader)
Return cached DocValues for input field and reader.
virtual int32_t cachedFieldSourceHashCode()
Return a hash code of a FieldCacheSource, without the hash-codes of the field and the cache (those ar...
A base class for ValueSource implementations that retrieve values for a single field from the FieldCa...
Definition FieldCacheSource.h:28
Definition AbstractAllTermDocs.h:12
boost::shared_ptr< ByteParser > ByteParserPtr
Definition LuceneTypes.h:289
boost::shared_ptr< FieldCacheSource > FieldCacheSourcePtr
Definition LuceneTypes.h:345
boost::shared_ptr< DocValues > DocValuesPtr
Definition LuceneTypes.h:325
boost::shared_ptr< FieldCache > FieldCachePtr
Definition LuceneTypes.h:334
boost::shared_ptr< IndexReader > IndexReaderPtr
Definition LuceneTypes.h:157

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