Package org.apache.druid.query

Class SegmentDescriptor

java.lang.Object

org.apache.druid.query.SegmentDescriptor

public class SegmentDescriptor
extends Object

The difference between this class and SegmentId is that this class is a "light" version of SegmentId, that only contains the interval, version, and partition number. It's used where the data source, another essential part of SegmentId is determined by the context (e. g. in org.apache.druid.client.CachingClusteredClient, where SegmentDescriptor is used when Brokers tell data servers which segments to include for a particular query) and where having lean JSON representations is important, because it's actively transferred between Druid nodes. It's also for this reason that the JSON field names of SegmentDescriptor are abbreviated.

Constructor Summary

Constructors

Constructor	Description
SegmentDescriptor(org.joda.time.Interval interval, String version, int partitionNumber)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
org.joda.time.Interval	getInterval()
int	getPartitionNumber()
String	getVersion()
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SegmentDescriptor

public SegmentDescriptor(org.joda.time.Interval interval,
                         String version,
                         int partitionNumber)

Method Detail

getInterval

public org.joda.time.Interval getInterval()

getVersion

public String getVersion()

getPartitionNumber

public int getPartitionNumber()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object