ivory.core.data.document

Class IntDocVectorsForwardIndex

java.lang.Object

ivory.core.data.document.IntDocVectorsForwardIndex

public class IntDocVectorsForwardIndex
extends Object

Object providing an index into one or more SequenceFiles containing IntDocVectors, providing random access to the document vectors.

Author:

Jimmy Lin

See Also:

BuildIntDocVectorsForwardIndex

Field Summary

Fields

Modifier and Type	Field and Description
static long	BigNumber

Constructor Summary

Constructors

Constructor and Description
IntDocVectorsForwardIndex(String indexPath, FileSystem fs) Creates an IntDocVectorsIndex object.
IntDocVectorsForwardIndex(String indexPath, FileSystem fs, boolean weighted) Creates an IntDocVectorsIndex object.

Method Summary

Methods

Modifier and Type	Method and Description
IntDocVector	getDocVector(int docno) Returns the document vector given a docno.
static void	main(String[] args) Simple test program.

Methods inherited from class java.lang.Object

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

Field Detail

BigNumber

public static final long BigNumber

See Also:

Constant Field Values

Constructor Detail

IntDocVectorsForwardIndex

public IntDocVectorsForwardIndex(String indexPath,
                         FileSystem fs)
                          throws IOException

Creates an IntDocVectorsIndex object.

Parameters:

indexPath - location of the index file

fs - handle to the FileSystem

Throws:

IOException

IntDocVectorsForwardIndex

public IntDocVectorsForwardIndex(String indexPath,
                         FileSystem fs,
                         boolean weighted)
                          throws IOException

Creates an IntDocVectorsIndex object.

Parameters:

indexPath - location of the index file

fs - handle to the FileSystem

weighted - true to load weighted document vectors

Throws:

IOException

Method Detail

getDocVector

public IntDocVector getDocVector(int docno)
                          throws IOException

Returns the document vector given a docno.

Returns:

IntDocVector for the appropriate docno

Throws:

IOException

main

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

Simple test program.

Throws:

Exception