org.terrier.structures.merging

Class LexiconMerger

java.lang.Object

org.terrier.structures.merging.LexiconMerger

public class LexiconMerger
extends Object

Merges many lexicons, termids and offsets are not kept.

Author:

Vassilis Plachouras

Field Summary

Fields

Modifier and Type	Field and Description
protected IndexOnDisk	destIndex
protected IndexOnDisk	srcIndex1
protected IndexOnDisk	srcIndex2

Constructor Summary

Constructors

Constructor and Description
LexiconMerger(IndexOnDisk src1, IndexOnDisk src2, IndexOnDisk dest) A constructor that sets the filenames of the lexicon files to merge

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args) main
void	mergeLexicons() Merges the two lexicons into one.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

srcIndex1

protected IndexOnDisk srcIndex1

srcIndex2

protected IndexOnDisk srcIndex2

destIndex

protected IndexOnDisk destIndex

Constructor Detail

LexiconMerger

public LexiconMerger(IndexOnDisk src1,
                     IndexOnDisk src2,
                     IndexOnDisk dest)

A constructor that sets the filenames of the lexicon files to merge

Parameters:

src1 - Source index 1

src2 - Source index 2

dest - Destination index

Method Detail

mergeLexicons

public void mergeLexicons()

Merges the two lexicons into one. After this stage, the offsets in the lexicon are not correct. They will be updated only after creating the inverted file.

main

public static void main(String[] args)
                 throws Exception

main

Parameters:

args -

Throws:

Exception