Package org.apache.cassandra.index.sai.disk.v1.segment

Class LiteralIndexSegmentTermsReader

java.lang.Object

org.apache.cassandra.index.sai.disk.v1.segment.LiteralIndexSegmentTermsReader

All Implemented Interfaces:

Closeable, AutoCloseable

public class LiteralIndexSegmentTermsReader
extends Object
implements Closeable

Synchronous reader of terms dictionary and postings lists to produce a PostingList with matching row ids. exactMatch(ByteComparable, QueryEventListener.TrieIndexEventListener, QueryContext) does:

• LiteralIndexSegmentTermsReader.TermQuery.lookupPostingsOffset(ByteComparable): does term dictionary lookup to find the posting list file position
• LiteralIndexSegmentTermsReader.TermQuery.getPostingsReader(long): reads posting list block summary and initializes posting read which reads the first block of the posting list into memory

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	LiteralIndexSegmentTermsReader.TermQuery

Constructor Summary

Constructors

Constructor	Description
LiteralIndexSegmentTermsReader(IndexIdentifier indexIdentifier, FileHandle termsData, FileHandle postingLists, long root, long termsFooterPointer)

Method Summary

Modifier and Type	Method	Description
void	close()
PostingList	exactMatch(ByteComparable term, QueryEventListener.TrieIndexEventListener perQueryEventListener, QueryContext context)

Methods inherited from class java.lang.Object

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

Constructor Details

LiteralIndexSegmentTermsReader

public LiteralIndexSegmentTermsReader(IndexIdentifier indexIdentifier,
 FileHandle termsData,
 FileHandle postingLists,
 long root,
 long termsFooterPointer)
                               throws IOException

Throws:

IOException

Method Details

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

exactMatch

public PostingList exactMatch(ByteComparable term,
 QueryEventListener.TrieIndexEventListener perQueryEventListener,
 QueryContext context)