LucenePositionalIndex

java.lang.Object

es.uam.eps.ir.relison.content.index.AbstractIndex<C>

es.uam.eps.ir.relison.content.index.lucene.LuceneIndex<C>

es.uam.eps.ir.relison.content.index.lucene.LucenePositionalIndex<C>

Type Parameters:: C - type of the contents.

All Implemented Interfaces:: DocumentMap<C>, Index<C>

public class LucenePositionalIndex<C>
extends LuceneIndex<C>

Lucene implementation of a positional index.

Field Summary

Fields inherited from class es.uam.eps.ir.relison.content.index.lucene.LuceneIndex
index

Fields inherited from class es.uam.eps.ir.relison.content.index.AbstractIndex
backward, forward
Constructor Summary

Constructors

Constructor Description

LucenePositionalIndex(java.lang.String path, org.ranksys.formats.parsing.Parser<C> cParser)
Constructor.
Method Summary

Modifier and Type Method Description

PostingsList getPostings(java.lang.String term)
Obtains the posting list of a term.

Methods inherited from class es.uam.eps.ir.relison.content.index.lucene.LuceneIndex
getAllTerms, getDocFreq, getTotalFreq, numDocs

Methods inherited from class es.uam.eps.ir.relison.content.index.AbstractIndex
getContent, getContentId, loadContents

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- LucenePositionalIndex
  
  public LucenePositionalIndex(java.lang.String path, org.ranksys.formats.parsing.Parser<C> cParser) throws java.io.IOException
  
  Constructor.
  
  Parameters:
  
  path - Path to the index.
  
  cParser - content parser.
  
  Throws:
  
  java.io.IOException - if something fails while reading the index.
Method Details
- getPostings
  
  public PostingsList getPostings(java.lang.String term) throws java.io.IOException
  
  Description copied from interface: Index
  
  Obtains the posting list of a term.
  
  Specified by:
  
  getPostings in interface Index<C>
  
  Overrides:
  
  getPostings in class LuceneIndex<C>
  
  Parameters:
  
  term - the term to look up.
  
  Returns:
  
  the posting list of the term.
  
  Throws:
  
  java.io.IOException - if something fails while reading the posting list.