org.terrier.structures.indexing
Class BlockFieldLexiconMap

java.lang.Object
  org.terrier.structures.indexing.LexiconMap
      org.terrier.structures.indexing.BlockLexiconMap
          org.terrier.structures.indexing.BlockFieldLexiconMap

public class BlockFieldLexiconMap
extends BlockLexiconMap

BlockFieldLexiconMap class

Field Summary

protected gnu.trove.TObjectIntHashMap<String>[]	field_tfs
protected int	fieldCount

Fields inherited from class org.terrier.structures.indexing.BlockLexiconMap

blockFreqs, numberOfBlocks, zerob, zerol

Fields inherited from class org.terrier.structures.indexing.LexiconMap

BUNDLE_AVG_UNIQUE_TERMS, nts, numberOfNodes, numberOfPointers, tfs

Constructor Summary

BlockFieldLexiconMap(int _fieldCount)
Constructs an instance of the BlockFieldLexiconMap.

Method Summary

void	clear() Clear the lexicon map
protected int[]	getFieldFrequency(String term)
void	insert(DocumentPostingList _doc) Inserts all the terms from a document posting into the lexicon map
void	storeToStream(LexiconOutputStream<String> lexiconStream) Stores the lexicon tree to a lexicon stream as a sequence of entries.

Methods inherited from class org.terrier.structures.indexing.BlockLexiconMap

insert

Methods inherited from class org.terrier.structures.indexing.LexiconMap

getNumberOfNodes, getNumberOfPointers, insert

Methods inherited from class java.lang.Object

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

Field Detail

fieldCount

protected final int fieldCount

field_tfs

protected final gnu.trove.TObjectIntHashMap<String>[] field_tfs

Constructor Detail

BlockFieldLexiconMap

public BlockFieldLexiconMap(int _fieldCount)

Constructs an instance of the BlockFieldLexiconMap.

Parameters:

_fieldCount -

Method Detail

getFieldFrequency

protected int[] getFieldFrequency(String term)

insert

public void insert(DocumentPostingList _doc)

Inserts all the terms from a document posting into the lexicon map

Overrides:

insert in class BlockLexiconMap

Parameters:

_doc - The postinglist for that document. Assumed to be of type BlockFieldDocumentPostingList.

storeToStream

public void storeToStream(LexiconOutputStream<String> lexiconStream)
                   throws IOException

Stores the lexicon tree to a lexicon stream as a sequence of entries. The binary tree is traversed in order, by called the method traverseAndStoreToStream.

Overrides:

storeToStream in class BlockLexiconMap

Parameters:

lexiconStream - The lexicon output stream to store to.

Throws:

IOException

clear

public void clear()

Description copied from class: BlockLexiconMap

Clear the lexicon map

Overrides:

clear in class BlockLexiconMap