org.terrier.structures.indexing.singlepass

Class BlockMemoryPostings

java.lang.Object

org.terrier.structures.indexing.singlepass.MemoryPostings

org.terrier.structures.indexing.singlepass.BlockMemoryPostings

Direct Known Subclasses:

BlockFieldMemoryPostings

public class BlockMemoryPostings
extends MemoryPostings

Class for handling posting lists containing block information in memory while indexing.

Author:

Roi Blanco

Field Summary

Fields inherited from class org.terrier.structures.indexing.singlepass.MemoryPostings

keyBytes, logger, maxSize, numPointers, postings, valueBytes

Constructor Summary

Constructors

Constructor and Description
BlockMemoryPostings()

Method Summary

Methods

Modifier and Type	Method and Description
void	add(String term, int doc, int frequency, int[] blocks) Add the specified to the term posting to the memory postings.
void	addTerms(DocumentPostingList _docPostings, int docid) Add the terms in a DocumentPostingList to the postings in memory.

Methods inherited from class org.terrier.structures.indexing.singlepass.MemoryPostings

add, finish, finish, getMemoryConsumption, getPointers, getSize

Methods inherited from class java.lang.Object

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

Constructor Detail

BlockMemoryPostings

public BlockMemoryPostings()

Method Detail

addTerms

public void addTerms(DocumentPostingList _docPostings,
            int docid)
              throws IOException

Add the terms in a DocumentPostingList to the postings in memory.

Overrides:

addTerms in class MemoryPostings

Parameters:

_docPostings - BlockDocumentPostingList containing the posting information for one document.

docid - Document id of the indexed document

Throws:

IOException - if an I/O error occurs.

add

public void add(String term,
       int doc,
       int frequency,
       int[] blocks)
         throws IOException

Add the specified to the term posting to the memory postings.

Parameters:

term - The String form of the term

doc - the document id of the doc

frequency - the frequency of the specified term in the document

blocks - the blockids at which this term occurs

Throws:

IOException