uk.ac.gla.terrier.structures
Class BlockInvertedIndexInputStream

java.lang.Object
  uk.ac.gla.terrier.structures.InvertedIndexInputStream
      uk.ac.gla.terrier.structures.BlockInvertedIndexInputStream

All Implemented Interfaces:

Closeable, IndexConfigurable

public class BlockInvertedIndexInputStream
extends InvertedIndexInputStream
implements IndexConfigurable

Reads a BlockInvertedIndex as a stream

Since:

2.0

Version:

$Revision: 1.4 $

Author:

Craig Macdonald

Constructor Summary

BlockInvertedIndexInputStream(BitIn invFile, LexiconInputStream lis)

BlockInvertedIndexInputStream(java.lang.String filename, LexiconInputStream lis)
Make a new BlockInvertedIndexInputStream from the specified filename.

BlockInvertedIndexInputStream(java.lang.String path, java.lang.String prefix, LexiconInputStream lis)
Make a new BlockInvertedIndexInputStream from the specified path/prefix combo.

Method Summary

void	print()
void	setIndex(Index i) let it know which index to use

Methods inherited from class uk.ac.gla.terrier.structures.InvertedIndexInputStream

close, getNextDocuments, reOpenLegacyBitFile

Methods inherited from class java.lang.Object

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

Constructor Detail

BlockInvertedIndexInputStream

public BlockInvertedIndexInputStream(java.lang.String path,
                                     java.lang.String prefix,
                                     LexiconInputStream lis)
                              throws java.io.IOException

Make a new BlockInvertedIndexInputStream from the specified path/prefix combo. The LexiconInputStream is required to determine the offsets and the document frequency - ie number of postings for each term.

Throws:

java.io.IOException

BlockInvertedIndexInputStream

public BlockInvertedIndexInputStream(java.lang.String filename,
                                     LexiconInputStream lis)
                              throws java.io.IOException

Make a new BlockInvertedIndexInputStream from the specified filename. The LexiconInputStream is required to determine the offsets and the document frequency - ie number of postings for each term.

Parameters:

filename - Location of the inverted file to open

Throws:

java.io.IOException

BlockInvertedIndexInputStream

public BlockInvertedIndexInputStream(BitIn invFile,
                                     LexiconInputStream lis)
                              throws java.io.IOException

Throws:

java.io.IOException

Method Detail

setIndex

public void setIndex(Index i)

let it know which index to use

Specified by:

setIndex in interface IndexConfigurable

Parameters:

i - Index object to use

print

public void print()

Overrides:

print in class InvertedIndexInputStream