Package org.apache.druid.query.lookup

Class LookupSegment

java.lang.Object

org.apache.druid.segment.RowBasedSegment<Map.Entry<String,String>>

org.apache.druid.query.lookup.LookupSegment

All Implemented Interfaces:

Closeable, AutoCloseable, Segment

public class LookupSegment
extends RowBasedSegment<Map.Entry<String,String>>

A Segment that is based on a LookupExtractor. Allows direct querying of lookups. The lookup must support LookupExtractor.asMap().

Constructor Summary

Constructors

Constructor	Description
LookupSegment(String lookupName, LookupExtractorFactory lookupExtractorFactory)

Method Summary

Modifier and Type	Method	Description
String	getDebugString()	Developer friendly string suitable to use in internal error messages and provide some additional information about what kind of segment was involved in a problem

Methods inherited from class org.apache.druid.segment.RowBasedSegment

as, close, getDataInterval, getId

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.segment.Segment

isTombstone, validateOrElseThrow

Constructor Details

LookupSegment

public LookupSegment(String lookupName,
 LookupExtractorFactory lookupExtractorFactory)

Method Details

getDebugString

public String getDebugString()

Description copied from interface: Segment

Developer friendly string suitable to use in internal error messages and provide some additional information about what kind of segment was involved in a problem