Package io.trino.execution

Interface QueryExecution

All Superinterfaces:

QueryTracker.TrackedQuery

All Known Implementing Classes:

DataDefinitionExecution, SqlQueryExecution

public interface QueryExecution
extends QueryTracker.TrackedQuery

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	QueryExecution.QueryExecutionFactory<T extends QueryExecution>
static class	QueryExecution.QueryOutputInfo	The info will always contain column names and types.

Method Summary

Modifier and Type	Method	Description
void	addFinalQueryInfoListener(StateMachine.StateChangeListener<QueryInfo> stateChangeListener)	Add a listener for the final query info.
void	addStateChangeListener(StateMachine.StateChangeListener<QueryState> stateChangeListener)
void	cancelQuery()
void	cancelStage(StageId stageId)
void	failTask(TaskId taskId, Exception reason)
BasicQueryInfo	getBasicQueryInfo()
QueryInfo	getQueryInfo()
Optional<Plan>	getQueryPlan()
Slug	getSlug()
QueryState	getState()
com.google.common.util.concurrent.ListenableFuture<QueryState>	getStateChange(QueryState currentState)
io.airlift.units.Duration	getTotalCpuTime()
io.airlift.units.DataSize	getTotalMemoryReservation()
io.airlift.units.DataSize	getUserMemoryReservation()
void	outputTaskFailed(TaskId taskId, Throwable failure)
void	recordHeartbeat()
void	resultsConsumed()
void	setOutputInfoListener(Consumer<QueryExecution.QueryOutputInfo> listener)
boolean	shouldWaitForMinWorkers()
void	start()

Methods inherited from interface io.trino.execution.QueryTracker.TrackedQuery

fail, getCreateTime, getEndTime, getExecutionStartTime, getLastHeartbeat, getPlanningTime, getQueryId, getSession, isDone, pruneInfo

Method Details

getState

QueryState getState()

getStateChange

com.google.common.util.concurrent.ListenableFuture<QueryState> getStateChange(QueryState currentState)

addStateChangeListener

void addStateChangeListener(StateMachine.StateChangeListener<QueryState> stateChangeListener)

setOutputInfoListener

void setOutputInfoListener(Consumer<QueryExecution.QueryOutputInfo> listener)

outputTaskFailed

void outputTaskFailed(TaskId taskId,
 Throwable failure)

resultsConsumed

void resultsConsumed()

getQueryPlan

Optional<Plan> getQueryPlan()

getBasicQueryInfo

BasicQueryInfo getBasicQueryInfo()

getQueryInfo

QueryInfo getQueryInfo()

getSlug

Slug getSlug()

getTotalCpuTime

io.airlift.units.Duration getTotalCpuTime()

getUserMemoryReservation

io.airlift.units.DataSize getUserMemoryReservation()

getTotalMemoryReservation

io.airlift.units.DataSize getTotalMemoryReservation()

start

void start()

cancelQuery

void cancelQuery()

cancelStage

void cancelStage(StageId stageId)

failTask

void failTask(TaskId taskId,
 Exception reason)

recordHeartbeat

void recordHeartbeat()

shouldWaitForMinWorkers

boolean shouldWaitForMinWorkers()

addFinalQueryInfoListener

void addFinalQueryInfoListener(StateMachine.StateChangeListener<QueryInfo> stateChangeListener)

Add a listener for the final query info. This notification is guaranteed to be fired only once. Listener is always notified asynchronously using a dedicated notification thread pool so, care should be taken to avoid leaking this when adding a listener in a constructor.