org.terrier.structures.indexing

Class FieldLexiconMap

java.lang.Object

org.terrier.structures.indexing.LexiconMap

org.terrier.structures.indexing.FieldLexiconMap

public class FieldLexiconMap
extends LexiconMap

class FieldLexicanMap

Field Summary

Fields

Modifier and Type	Field and Description
protected gnu.trove.TObjectIntHashMap<String>[]	field_tfs
protected int	fieldCount

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

BUNDLE_AVG_UNIQUE_TERMS, maxtfs, nts, numberOfNodes, numberOfPointers, tfs

Constructor Summary

Constructors

Constructor and Description
FieldLexiconMap(int _fieldCount) constructor

Method Summary

Modifier and Type	Method and Description
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, TermCodes termCodes) Stores the lexicon tree to a lexicon stream as a sequence of entries.

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

FieldLexiconMap

public FieldLexiconMap(int _fieldCount)

constructor

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 LexiconMap

Parameters:

_doc - The postinglist for that document. Assumed to be a FieldDocumentPostingList.

storeToStream

public void storeToStream(LexiconOutputStream<String> lexiconStream,
                          TermCodes termCodes)
                   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 LexiconMap

Parameters:

lexiconStream - The lexicon output stream to store to.

Throws:

IOException

clear

public void clear()

Description copied from class: LexiconMap

Clear the lexicon map

Overrides:

clear in class LexiconMap