org.apache.mahout.utils.vectors.lucene

Class CachedTermInfo

java.lang.Object

org.apache.mahout.utils.vectors.lucene.CachedTermInfo

All Implemented Interfaces:

TermInfo

public class CachedTermInfo
extends Object
implements TermInfo

Caches TermEntries from a single field. Materializes all values in the TermEnum to memory (much like FieldCache)

Constructor Summary

Constructors

Constructor and Description
CachedTermInfo(org.apache.lucene.index.IndexReader reader, String field, int minDf, int maxDfPercent)

Method Summary

Methods

Modifier and Type	Method and Description
Iterator<TermEntry>	getAllEntries()
TermEntry	getTermEntry(String field, String term)
int	totalTerms(String field)

Methods inherited from class java.lang.Object

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

Constructor Detail

CachedTermInfo

public CachedTermInfo(org.apache.lucene.index.IndexReader reader,
              String field,
              int minDf,
              int maxDfPercent)
               throws IOException

Throws:

IOException

Method Detail

totalTerms

public int totalTerms(String field)

Specified by:

totalTerms in interface TermInfo

getTermEntry

public TermEntry getTermEntry(String field,
                     String term)

Specified by:

getTermEntry in interface TermInfo

getAllEntries

public Iterator<TermEntry> getAllEntries()

Specified by:

getAllEntries in interface TermInfo