Package org.apache.druid.timeline.partition

Class TombstoneShardSpec

java.lang.Object

org.apache.druid.timeline.partition.TombstoneShardSpec

All Implemented Interfaces:

ShardSpec

public class TombstoneShardSpec
extends Object
implements ShardSpec

A shard spec to represent tombstones. Its partition number is always zero and contains zero core partitions as it contains no data. This allows other shard types appending to an existing TombstoneShardSpec to exist independently in the timeline even if the TombstoneShardSpec is dropped.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.druid.timeline.partition.ShardSpec

ShardSpec.Type

Field Summary

Fields

Modifier and Type	Field	Description
static TombstoneShardSpec	INSTANCE

Constructor Summary

Constructors

Constructor	Description
TombstoneShardSpec()

Method Summary

Modifier and Type	Method	Description
<T> PartitionChunk<T>	createChunk(T obj)
boolean	equals(Object o)
List<String>	getDomainDimensions()	Get dimensions who have possible range for the rows this shard contains.
ShardSpecLookup	getLookup(List<? extends ShardSpec> shardSpecs)
int	getNumCorePartitions()
int	getPartitionNum()	Returns the partition ID of this segment.
String	getType()	Get the type name of this ShardSpec.
int	hashCode()
boolean	possibleInDomain(Map<String,com.google.common.collect.RangeSet<String>> domain)	if given domain ranges are not possible in this shard, return false; otherwise return true;
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.timeline.partition.ShardSpec

getAtomicUpdateGroupSize, getEndRootPartitionId, getMinorVersion, getStartRootPartitionId, sharePartitionSpace

Field Detail

INSTANCE

public static TombstoneShardSpec INSTANCE

Constructor Detail

TombstoneShardSpec

public TombstoneShardSpec()

Method Detail

getPartitionNum

public int getPartitionNum()

Description copied from interface: ShardSpec

Returns the partition ID of this segment.

Specified by:

getPartitionNum in interface ShardSpec

getLookup

public ShardSpecLookup getLookup(List<? extends ShardSpec> shardSpecs)

Specified by:

getLookup in interface ShardSpec

getDomainDimensions

public List<String> getDomainDimensions()

Description copied from interface: ShardSpec

Get dimensions who have possible range for the rows this shard contains.

Specified by:

getDomainDimensions in interface ShardSpec

Returns:

list of dimensions who has its possible range. Dimensions with unknown possible range are not listed

possibleInDomain

public boolean possibleInDomain(Map<String,com.google.common.collect.RangeSet<String>> domain)

Description copied from interface: ShardSpec

if given domain ranges are not possible in this shard, return false; otherwise return true;

Specified by:

possibleInDomain in interface ShardSpec

Returns:

possibility of in domain

getNumCorePartitions

public int getNumCorePartitions()

Specified by:

getNumCorePartitions in interface ShardSpec

createChunk

public <T> PartitionChunk<T> createChunk(T obj)

Specified by:

createChunk in interface ShardSpec

getType

public String getType()

Description copied from interface: ShardSpec

Get the type name of this ShardSpec.

Specified by:

getType in interface ShardSpec

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object