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include
TermInfosReader.h
Go to the documentation of this file.
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// Copyright (c) 2009-2011 Alan Wright. All rights reserved.
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// Distributable under the terms of either the Apache License (Version 2.0)
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// or the GNU Lesser General Public License.
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#ifndef TERMINFOSREADER_H
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#define TERMINFOSREADER_H
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#include "
CloseableThreadLocal.h
"
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#include "
SimpleLRUCache.h
"
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namespace
Lucene
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{
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class
TermInfosReader
:
public
LuceneObject
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{
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public
:
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TermInfosReader
(
DirectoryPtr
dir,
const
String& seg,
FieldInfosPtr
fis, int32_t readBufferSize, int32_t indexDivisor);
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virtual
~TermInfosReader
();
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LUCENE_CLASS
(
TermInfosReader
);
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protected
:
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DirectoryPtr
directory
;
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String
segment
;
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FieldInfosPtr
fieldInfos
;
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CloseableThreadLocal<TermInfosReaderThreadResources>
threadResources
;
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SegmentTermEnumPtr
origEnum
;
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int64_t
_size
;
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Collection<TermPtr>
indexTerms
;
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Collection<TermInfoPtr>
indexInfos
;
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Collection<int64_t>
indexPointers
;
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int32_t
totalIndexInterval
;
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static
const
int32_t
DEFAULT_CACHE_SIZE
;
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public
:
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int32_t
getSkipInterval
();
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int32_t
getMaxSkipLevels
();
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void
close
();
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int64_t
size
();
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TermInfoPtr
get
(
TermPtr
term);
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int64_t
getPosition
(
TermPtr
term);
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SegmentTermEnumPtr
terms
();
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SegmentTermEnumPtr
terms
(
TermPtr
term);
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protected
:
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TermInfosReaderThreadResourcesPtr
getThreadResources
();
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int32_t
getIndexOffset
(
TermPtr
term);
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void
seekEnum
(
SegmentTermEnumPtr
enumerator, int32_t indexOffset);
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TermInfoPtr
get
(
TermPtr
term,
bool
useCache);
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void
ensureIndexIsRead
();
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};
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class
TermInfosReaderThreadResources
:
public
LuceneObject
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{
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public
:
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virtual
~TermInfosReaderThreadResources
();
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LUCENE_CLASS
(
TermInfosReaderThreadResources
);
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public
:
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SegmentTermEnumPtr
termEnum
;
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// Used for caching the least recently looked-up Terms
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TermInfoCachePtr
termInfoCache
;
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};
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}
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#endif
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