org.apache.lucene.codecs.memory

Class FSTTermsReader

java.lang.Object

org.apache.lucene.index.Fields

org.apache.lucene.codecs.FieldsProducer

org.apache.lucene.codecs.memory.FSTTermsReader

All Implemented Interfaces:

Closeable, Iterable<String>

public class FSTTermsReader
extends FieldsProducer

FST-based terms dictionary reader. The FST directly maps each term and its metadata, it is memeory resident.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Field Summary

Fields inherited from class org.apache.lucene.index.Fields

EMPTY_ARRAY

Constructor Summary

Constructors

Constructor and Description
FSTTermsReader(SegmentReadState state, PostingsReaderBase postingsReader)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
Iterator<String>	iterator()
long	ramBytesUsed()
int	size()
Terms	terms(String field)

Methods inherited from class org.apache.lucene.index.Fields

getUniqueTermCount

Methods inherited from class java.lang.Object

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

Constructor Detail

FSTTermsReader

public FSTTermsReader(SegmentReadState state,
              PostingsReaderBase postingsReader)
               throws IOException

Throws:

IOException

Method Detail

iterator

public Iterator<String> iterator()

Specified by:

iterator in interface Iterable<String>

Specified by:

iterator in class Fields

terms

public Terms terms(String field)
            throws IOException

Specified by:

terms in class Fields

Throws:

IOException

size

public int size()

Specified by:

size in class Fields

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in class FieldsProducer

Throws:

IOException

ramBytesUsed

public long ramBytesUsed()

Specified by:

ramBytesUsed in class FieldsProducer