Package org.apache.pinot.query.runtime.operator

Class BaseMailboxReceiveOperator

java.lang.Object

org.apache.pinot.query.runtime.operator.MultiStageOperator

org.apache.pinot.query.runtime.operator.BaseMailboxReceiveOperator

All Implemented Interfaces:

AutoCloseable, Operator<TransferableBlock>

Direct Known Subclasses:

MailboxReceiveOperator, SortedMailboxReceiveOperator

public abstract class BaseMailboxReceiveOperator
extends MultiStageOperator

Base class to be used by the various MailboxReceiveOperators such as the sorted and non-sorted versions. This class contains the common logic needed for MailboxReceive BaseMailboxReceiveOperator receives mailbox from mailboxService from sendingStageInstances. We use sendingStageInstance to deduce mailboxId and fetch the content from mailboxService. When exchangeType is Singleton, we find the mapping mailbox for the mailboxService. If not found, use empty list. When exchangeType is non-Singleton, we pull from each instance in round-robin way to get matched mailbox content.

Field Summary

Fields

Modifier and Type	Field	Description
protected org.apache.calcite.rel.RelDistribution.Type	_exchangeType
protected List<String>	_mailboxIds
protected MailboxService	_mailboxService

Fields inherited from class org.apache.pinot.query.runtime.operator.MultiStageOperator

_context, _opChainStats, _operatorId

Constructor Summary

Constructors

Constructor	Description
BaseMailboxReceiveOperator(OpChainExecutionContext context, org.apache.calcite.rel.RelDistribution.Type exchangeType, int senderStageId)

Method Summary

Modifier and Type	Method	Description
void	cancel(Throwable t)
void	close()
List<MultiStageOperator>	getChildOperators()
List<String>	getMailboxIds()
protected BlockingMultiStreamConsumer.OfTransferableBlock	getMultiConsumer()

Methods inherited from class org.apache.pinot.query.runtime.operator.MultiStageOperator

getNextBlock, getOperatorId, nextBlock, shouldCollectStats

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.pinot.core.common.Operator

explainPlan, getExecutionStatistics, getIndexSegment, prepareForExplainPlan, toExplainString

Field Detail

_mailboxService

protected final MailboxService _mailboxService

_exchangeType

protected final org.apache.calcite.rel.RelDistribution.Type _exchangeType

_mailboxIds

protected final List<String> _mailboxIds

Constructor Detail

BaseMailboxReceiveOperator

public BaseMailboxReceiveOperator(OpChainExecutionContext context,
                                  org.apache.calcite.rel.RelDistribution.Type exchangeType,
                                  int senderStageId)

Method Detail

getMultiConsumer

protected BlockingMultiStreamConsumer.OfTransferableBlock getMultiConsumer()

getMailboxIds

public List<String> getMailboxIds()

getChildOperators

public List<MultiStageOperator> getChildOperators()

Specified by:

getChildOperators in interface Operator<TransferableBlock>

Overrides:

getChildOperators in class MultiStageOperator

close

public void close()

Specified by:

close in interface AutoCloseable

Overrides:

close in class MultiStageOperator

cancel

public void cancel(Throwable t)

Overrides:

cancel in class MultiStageOperator