aitools::invertedindex::PostlistBuilder Class Reference

#include <PostlistBuilder.hpp>

List of all members.

Public Types

typedef boost::shared_ptr
< PostlistBuilder > 		SharedPointer

Public Member Functions

 PostlistBuilder ()
 ~PostlistBuilder ()
void append (const ByteBuffer &value) throw (std::runtime_error)
Iterator::SharedPointer build ()
void clear ()
bool empty () const
size_t length () const
void set_checksum (uint16_t checksum)

Private Types

typedef std::vector< ByteBuffer > ValueVector
typedef Iterator::SizeVector SizeVector
typedef Iterator::Header Header

Private Member Functions

void swap_out_values_ () throw (std::runtime_error)
bool has_page_file_ () const

Private Attributes

Header header_
ValueVector values_
SizeVector * vsizes_
size_t memory_
FILE * page_

Detailed Description

A class to build postlists by appending entries.

Author:
martin.trenkmann@uni-weimar.de

Created on Jun 22, 2008

Id
PostlistBuilder.hpp,v 1.22 2010/05/11 23:41:08 trenkman Exp

Definition at line 25 of file PostlistBuilder.hpp.

Member Typedef Documentation

typedef Iterator::Header aitools::invertedindex::PostlistBuilder::Header [private]

Definition at line 35 of file PostlistBuilder.hpp.

typedef boost::shared_ptr<PostlistBuilder> aitools::invertedindex::PostlistBuilder::SharedPointer

Definition at line 29 of file PostlistBuilder.hpp.

typedef Iterator::SizeVector aitools::invertedindex::PostlistBuilder::SizeVector [private]

Definition at line 34 of file PostlistBuilder.hpp.

typedef std::vector<ByteBuffer> aitools::invertedindex::PostlistBuilder::ValueVector [private]

Definition at line 33 of file PostlistBuilder.hpp.

Constructor & Destructor Documentation

aitools::invertedindex::PostlistBuilder::PostlistBuilder (  ) 

The explicit constructor.

Definition at line 8 of file PostlistBuilder.cpp.

aitools::invertedindex::PostlistBuilder::~PostlistBuilder (  ) 

The destructor.

Definition at line 14 of file PostlistBuilder.cpp.

References aitools::util::fclose(), has_page_file_(), page_, and vsizes_.

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Member Function Documentation

void aitools::invertedindex::PostlistBuilder::append ( const ByteBuffer &  value  )  throw (std::runtime_error)

Definition at line 24 of file PostlistBuilder.cpp.

References aitools::invertedindex::System::fwrite(), and aitools::invertedindex::Iterator::max_chunk_size.

Referenced by BOOST_AUTO_TEST_CASE(), aitools::invertedindex::ExternalMergeSort::merge(), aitools::invertedindex::InternalIntroSort::sort(), and write_postlist().

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Iterator::SharedPointer aitools::invertedindex::PostlistBuilder::build (  ) 

Definition at line 53 of file PostlistBuilder.cpp.

References clear(), aitools::invertedindex::ByteBuffer::data(), has_page_file_(), header_, page_, aitools::invertedindex::Iterator::Header::payload, aitools::util::rewind(), aitools::invertedindex::Iterator::Header::value_size, values_, and vsizes_.

Referenced by BOOST_AUTO_TEST_CASE(), aitools::invertedindex::ExternalMergeSort::merge(), aitools::invertedindex::InternalIntroSort::sort(), and write_postlist().

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void aitools::invertedindex::PostlistBuilder::clear (  ) 

Definition at line 87 of file PostlistBuilder.cpp.

References aitools::util::fclose(), has_page_file_(), header_, memory_, page_, values_, and vsizes_.

Referenced by build().

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bool aitools::invertedindex::PostlistBuilder::empty (  )  const

Definition at line 101 of file PostlistBuilder.cpp.

References header_, and aitools::invertedindex::Iterator::Header::value_count.

Referenced by BOOST_AUTO_TEST_CASE().

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bool aitools::invertedindex::PostlistBuilder::has_page_file_ (  )  const [private]

Definition at line 132 of file PostlistBuilder.cpp.

References page_.

Referenced by build(), clear(), and ~PostlistBuilder().

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size_t aitools::invertedindex::PostlistBuilder::length (  )  const

Definition at line 107 of file PostlistBuilder.cpp.

References header_, and aitools::invertedindex::Iterator::Header::value_count.

Referenced by BOOST_AUTO_TEST_CASE().

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void aitools::invertedindex::PostlistBuilder::set_checksum ( uint16_t  checksum  ) 

Definition at line 113 of file PostlistBuilder.cpp.

References aitools::invertedindex::Iterator::Header::checksum, and header_.

Referenced by BOOST_AUTO_TEST_CASE(), aitools::invertedindex::ExternalMergeSort::merge(), and aitools::invertedindex::InternalIntroSort::sort().

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void aitools::invertedindex::PostlistBuilder::swap_out_values_ (  )  throw (std::runtime_error) [private]

Definition at line 119 of file PostlistBuilder.cpp.

References aitools::util::fwrite(), memory_, page_, aitools::util::tmpfile(), and values_.

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Member Data Documentation

Header aitools::invertedindex::PostlistBuilder::header_ [private]

Definition at line 70 of file PostlistBuilder.hpp.

Referenced by build(), clear(), empty(), length(), and set_checksum().

size_t aitools::invertedindex::PostlistBuilder::memory_ [private]

Definition at line 73 of file PostlistBuilder.hpp.

Referenced by clear(), and swap_out_values_().

FILE* aitools::invertedindex::PostlistBuilder::page_ [private]

Definition at line 74 of file PostlistBuilder.hpp.

Referenced by build(), clear(), has_page_file_(), swap_out_values_(), and ~PostlistBuilder().

ValueVector aitools::invertedindex::PostlistBuilder::values_ [private]

Definition at line 71 of file PostlistBuilder.hpp.

Referenced by build(), clear(), and swap_out_values_().

SizeVector* aitools::invertedindex::PostlistBuilder::vsizes_ [private]

Definition at line 72 of file PostlistBuilder.hpp.

Referenced by build(), clear(), and ~PostlistBuilder().

The documentation for this class was generated from the following files:
Generated on Wed May 30 15:07:34 2012 by  doxygen 1.6.3