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

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

 class TermVectorsReader
extends Object

TODO: relax synchro!

Field Summary

private FieldInfos	fieldInfos
private int	size
private InputStream	tvd
private InputStream	tvf
private InputStream	tvx

Constructor Summary

TermVectorsReader(Directory d, String segment, FieldInfos fieldInfos)

Method Summary

private void	checkValidFormat(InputStream in)
(package private) void	close()
(package private) TermFreqVector[]	get(int docNum) Return all term vectors stored for this document or null if the could not be read in.
(package private) TermFreqVector	get(int docNum, String field) Retrieve the term vector for the given document and field
private SegmentTermVector	readTermVector(String field, long tvfPointer)
private SegmentTermVector[]	readTermVectors(String[] fields, long[] tvfPointers)
(package private) int	size()

Methods inherited from class java.lang.Object

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

Field Detail

fieldInfos

private FieldInfos fieldInfos

tvx

private InputStream tvx

tvd

private InputStream tvd

tvf

private InputStream tvf

size

private int size

Constructor Detail

TermVectorsReader

TermVectorsReader(Directory d,
                  String segment,
                  FieldInfos fieldInfos)
            throws IOException

Throws:

IOException

Method Detail

checkValidFormat

private void checkValidFormat(InputStream in)
                       throws IOException

Throws:

IOException

close

void close()
     throws IOException

Throws:

IOException

size

int size()

Returns:

The number of documents in the reader

get

TermFreqVector get(int docNum,
                   String field)

Retrieve the term vector for the given document and field

Parameters:

docNum - The document number to retrieve the vector for

field - The field within the document to retrieve

Returns:

The TermFreqVector for the document and field or null

get

TermFreqVector[] get(int docNum)

Return all term vectors stored for this document or null if the could not be read in.

readTermVectors

private SegmentTermVector[] readTermVectors(String[] fields,
                                            long[] tvfPointers)
                                     throws IOException

Throws:

IOException

readTermVector

private SegmentTermVector readTermVector(String field,
                                         long tvfPointer)
                                  throws IOException

Parameters:

fieldNum - The field to read in

tvfPointer - The pointer within the tvf file where we should start reading

Returns:

The TermVector located at that position

Throws:

IOException