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

Class MailboxSendOperator

java.lang.Object

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

org.apache.pinot.query.runtime.operator.MailboxSendOperator

All Implemented Interfaces:

AutoCloseable, Operator<TransferableBlock>

public class MailboxSendOperator
extends MultiStageOperator

This MailboxSendOperator is created to send TransferableBlocks to the receiving end. TODO: Add support to sort the data prior to sending if sorting is enabled

Field Summary

Fields

Modifier and Type	Field	Description
static Set<org.apache.calcite.rel.RelDistribution.Type>	SUPPORTED_EXCHANGE_TYPES

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

_context, _opChainStats, _operatorId

Constructor Summary

Constructors

Constructor	Description
MailboxSendOperator(OpChainExecutionContext context, MultiStageOperator sourceOperator, org.apache.calcite.rel.RelDistribution.Type exchangeType, KeySelector<Object[],Object[]> keySelector, List<RexExpression> collationKeys, List<org.apache.calcite.rel.RelFieldCollation.Direction> collationDirections, boolean isSortOnSender, int receiverStageId)

Method Summary

Modifier and Type	Method	Description
void	cancel(Throwable t)
void	close()
List<MultiStageOperator>	getChildOperators()
protected TransferableBlock	getNextBlock()
protected boolean	shouldCollectStats()	This method is overridden to return true because this operator is last in the chain and needs to collect execution time stats
String	toExplainString()

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

getOperatorId, nextBlock

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

Field Detail

SUPPORTED_EXCHANGE_TYPES

public static final Set<org.apache.calcite.rel.RelDistribution.Type> SUPPORTED_EXCHANGE_TYPES

Constructor Detail

MailboxSendOperator

public MailboxSendOperator(OpChainExecutionContext context,
                           MultiStageOperator sourceOperator,
                           org.apache.calcite.rel.RelDistribution.Type exchangeType,
                           KeySelector<Object[],Object[]> keySelector,
                           @Nullable
                           List<RexExpression> collationKeys,
                           @Nullable
                           List<org.apache.calcite.rel.RelFieldCollation.Direction> collationDirections,
                           boolean isSortOnSender,
                           int receiverStageId)

Method Detail

getChildOperators

public List<MultiStageOperator> getChildOperators()

Specified by:

getChildOperators in interface Operator<TransferableBlock>

Overrides:

getChildOperators in class MultiStageOperator

toExplainString

@Nullable
public String toExplainString()

getNextBlock

protected TransferableBlock getNextBlock()

Specified by:

getNextBlock in class MultiStageOperator

shouldCollectStats

protected boolean shouldCollectStats()

This method is overridden to return true because this operator is last in the chain and needs to collect execution time stats

Overrides:

shouldCollectStats 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