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InvIndexMerge Class Reference

#include <InvIndexMerge.hpp>

Inheritance diagram for InvIndexMerge:

List of all members.

Public Methods
	InvIndexMerge (char *buffer,long size,long maxfilesize=2100000000)
	constructor. vector : a list of files to merge char* : name prefix of created files long : the maximum size the index can be.
	InvIndexMerge (long buffersize=64000000,long maxfilesize=2100000000)
	~InvIndexMerge ()
int	merge (vector< char *> *tf,char *prefix)
	output of this merge operation and the lookup table for the merged index returns the number of index files this merge created.
void	setMaxFileSize (long size)
char*	setBuffer (char *buffer,long size)
int	hierMerge (vector< char *> *files,int level)
	recursive hierarchical merge calls mergeFiles() when intermediate files are necessary base case if finalMerge().
virtual int	mergeFiles (vector< char *> *files,vector< char *> *intmed,int level)
	merge these files and put the results into the intmed list.
virtual int	finalMerge (vector< char *> *files)
	do the final merge and write the lookup table.
Protected Methods
virtual void	writeInvFIDs ()
	write file ids for indexes created.
virtual void	least (vector< IndexReader *> *r,vector< int > *ret)
	figure out which readers point to the lowest termids.
void	setbuf (ifstream *fs,char *bp,int bytes)
	setbuffer for ifstream. trying to keep ugly os specific code out of main code.
Protected Attributes
char*	name
vector<char*>	invfiles
long	maxfile
long	bufsize
char*	readbuffer

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Constructor & Destructor Documentation

InvIndexMerge::InvIndexMerge ( char * buffer, long size, long maxfilesize = 2100000000 )

constructor. vector : a list of files to merge char* : name prefix of created files long : the maximum size the index can be.

InvIndexMerge::InvIndexMerge ( long buffersize = 64000000, long maxfilesize = 2100000000 )

InvIndexMerge::~InvIndexMerge ( )

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Member Function Documentation

int InvIndexMerge::finalMerge ( vector< char *> * files ) [virtual]

do the final merge and write the lookup table. Reimplemented in InvFPIndexMerge.

int InvIndexMerge::hierMerge ( vector< char *> * files, int level )

recursive hierarchical merge calls mergeFiles() when intermediate files are necessary base case if finalMerge().

void InvIndexMerge::least ( vector< IndexReader *> * r, vector< int > * ret ) [protected, virtual]

figure out which readers point to the lowest termids.

int InvIndexMerge::merge ( vector< char *> * tf, char * prefix )

output of this merge operation and the lookup table for the merged index returns the number of index files this merge created.

int InvIndexMerge::mergeFiles ( vector< char *> * files, vector< char *> * intmed, int level ) [virtual]

merge these files and put the results into the intmed list. Reimplemented in InvFPIndexMerge.

char * InvIndexMerge::setBuffer ( char * buf, long size )

void InvIndexMerge::setMaxFileSize ( long size )

void InvIndexMerge::setbuf ( ifstream * fs, char * bp, int bytes ) [protected]

setbuffer for ifstream. trying to keep ugly os specific code out of main code.

void InvIndexMerge::writeInvFIDs ( ) [protected, virtual]

write file ids for indexes created.

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Member Data Documentation

long InvIndexMerge::bufsize [protected]

vector< char *> InvIndexMerge::invfiles [protected]

long InvIndexMerge::maxfile [protected]

char * InvIndexMerge::name [protected]

char * InvIndexMerge::readbuffer [protected]

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The documentation for this class was generated from the following files:

• InvIndexMerge.hpp
• InvIndexMerge.cpp

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