org.terrier.utility.restructure

Class Terrier4

java.lang.Object

org.terrier.utility.restructure.Terrier4

public class Terrier4
extends Object

This Class allows the updating of a Terrier 3.x index to the specification of Terrier 4.x index. The main difference between these versions from a structure perspective was that addition of pluggable compression within the IndexOnDisk.

Since:

4.0

Author:

Richard McCreadie

Field Summary

Fields

Modifier and Type	Field and Description
protected String	path
protected String	prefix
protected Properties	properties

Constructor Summary

Constructors

Constructor and Description
Terrier4() Use this method when you wish to specify the properties object to rewrite
Terrier4(String path, String prefix) Use this method to load an index data.properties file and rewrite it

Method Summary

Methods

Modifier and Type	Method and Description
protected boolean	loadProperties(String path, String prefix) loads in the properties file, falling back to the Terrier 1.xx log file if no properties exist.
static void	main(String[] args)
void	updateIndexProperties()
void	updateIndexProperties(Properties indexProperties) This method takes re-writes the index properties for a Terrier 3.x index to making compatible with Terrier 4.x

Methods inherited from class java.lang.Object

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

Field Detail

properties

protected Properties properties

path

protected String path

prefix

protected String prefix

Constructor Detail

Terrier4

public Terrier4()

Use this method when you wish to specify the properties object to rewrite

Terrier4

public Terrier4(String path,
        String prefix)

Use this method to load an index data.properties file and rewrite it

Method Detail

main

public static void main(String[] args)

updateIndexProperties

public void updateIndexProperties()

updateIndexProperties

public void updateIndexProperties(Properties indexProperties)

This method takes re-writes the index properties for a Terrier 3.x index to making compatible with Terrier 4.x

Parameters:

indexProperties - properties object to alter

loadProperties

protected boolean loadProperties(String path,
                     String prefix)

loads in the properties file, falling back to the Terrier 1.xx log file if no properties exist.