FieldLexiconMap (Terrier Information Retrieval Platform 5.5 API)

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 Description

protected gnu.trove.TObjectIntHashMap<java.lang.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 Description

FieldLexiconMap(int _fieldCount)
constructor

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`	Clear the lexicon map
`protected int[]`	`getFieldFrequency(java.lang.String term)`
`void`	`insert(DocumentPostingList _doc)`	Inserts all the terms from a document posting into the lexicon map
`void`	`storeToStream(LexiconOutputStream<java.lang.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<java.lang.String>[] field_tfs
```
- Constructor Detail
  - FieldLexiconMap
```
public FieldLexiconMap(int _fieldCount)
```
    constructor
    
    Parameters:
    
    _fieldCount -
- Method Detail
  - getFieldFrequency
```
protected int[] getFieldFrequency(java.lang.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<java.lang.String> lexiconStream,
                          TermCodes termCodes)
                   throws java.io.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:
    
    java.io.IOException
  - clear
```
public void clear()
```
    Description copied from class: LexiconMap
    
    Clear the lexicon map
    
    Overrides:
    
    clear in class LexiconMap