gate.creole.annic.apache.lucene.index
Class DocumentWriter

java.lang.Object
  gate.creole.annic.apache.lucene.index.DocumentWriter

final class DocumentWriter
extends Object

Field Summary

private Analyzer	analyzer
private Directory	directory
private float[]	fieldBoosts
private FieldInfos	fieldInfos
private int[]	fieldLengths
private int[]	fieldPositions
private int	maxFieldLength
private Hashtable	postingTable
private Similarity	similarity
private Term	termBuffer

Constructor Summary

DocumentWriter(Directory directory, Analyzer analyzer, Similarity similarity, int maxFieldLength)

Method Summary

(package private) void	addDocument(String segment, Document doc)
private void	addPosition(String field, String text, String type, int position)
private void	invertDocument(Document doc)
private static void	quickSort(Posting[] postings, int lo, int hi)
private Posting[]	sortPostingTable()
private void	writeNorms(Document doc, String segment)
private void	writePostings(Posting[] postings, String segment)

Methods inherited from class java.lang.Object

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

Field Detail

analyzer

private Analyzer analyzer

directory

private Directory directory

similarity

private Similarity similarity

fieldInfos

private FieldInfos fieldInfos

maxFieldLength

private int maxFieldLength

postingTable

private final Hashtable postingTable

fieldLengths

private int[] fieldLengths

fieldPositions

private int[] fieldPositions

fieldBoosts

private float[] fieldBoosts

termBuffer

private final Term termBuffer

Constructor Detail

DocumentWriter

DocumentWriter(Directory directory,
               Analyzer analyzer,
               Similarity similarity,
               int maxFieldLength)

Parameters:

directory - The directory to write the document information to

analyzer - The analyzer to use for the document

similarity - The Similarity function

maxFieldLength - The maximum number of tokens a field may have

Method Detail

addDocument

final void addDocument(String segment,
                       Document doc)
                throws IOException

Throws:

IOException

invertDocument

private final void invertDocument(Document doc)
                           throws IOException

Throws:

IOException

addPosition

private final void addPosition(String field,
                               String text,
                               String type,
                               int position)

sortPostingTable

private final Posting[] sortPostingTable()

quickSort

private static final void quickSort(Posting[] postings,
                                    int lo,
                                    int hi)

writePostings

private final void writePostings(Posting[] postings,
                                 String segment)
                          throws IOException

Throws:

IOException

writeNorms

private final void writeNorms(Document doc,
                              String segment)
                       throws IOException

Throws:

IOException