Package org.apache.pinot.segment.local.utils.nativefst

Class NativeFSTIndexReader

java.lang.Object

org.apache.pinot.segment.local.utils.nativefst.NativeFSTIndexReader

All Implemented Interfaces:

Closeable, AutoCloseable, TextIndexReader

public class NativeFSTIndexReader
extends Object
implements TextIndexReader

This class loads FST index from PinotDataBuffer and creates a FST reader which is used in finding matching results for regexp queries. Since FST index currently stores dict ids as values this class only implements getDictIds method. This class works on top of ImmutableFST.

Constructor Summary

Constructors

Constructor	Description
NativeFSTIndexReader(PinotDataBuffer dataBuffer)

Method Summary

Modifier and Type	Method	Description
void	close()
org.roaringbitmap.buffer.ImmutableRoaringBitmap	getDictIds(String searchQuery)
org.roaringbitmap.buffer.MutableRoaringBitmap	getDocIds(String searchQuery)

Methods inherited from class java.lang.Object

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

Constructor Detail

NativeFSTIndexReader

public NativeFSTIndexReader(PinotDataBuffer dataBuffer)
                     throws IOException

Throws:

IOException

Method Detail

getDocIds

public org.roaringbitmap.buffer.MutableRoaringBitmap getDocIds(String searchQuery)

Specified by:

getDocIds in interface TextIndexReader

getDictIds

public org.roaringbitmap.buffer.ImmutableRoaringBitmap getDictIds(String searchQuery)

Specified by:

getDictIds in interface TextIndexReader

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException