io.prestosql.operator

Class TaskContext

java.lang.Object

io.prestosql.operator.TaskContext

@ThreadSafe
public class TaskContext
extends Object

Method Summary

Modifier and Type	Method and Description
<C,R> R	accept(QueryContextVisitor<C,R> visitor, C context)
<C,R> List<R>	acceptChildren(QueryContextVisitor<C,R> visitor, C context)
void	addCompletedDriverGroup(Lifespan driverGroup)
PipelineContext	addPipelineContext(int pipelineId, boolean inputPipeline, boolean outputPipeline, boolean partitioned)
static TaskContext	createTaskContext(QueryContext queryContext, TaskStateMachine taskStateMachine, io.airlift.stats.GcMonitor gcMonitor, Executor notificationExecutor, ScheduledExecutorService yieldExecutor, Session session, MemoryTrackingContext taskMemoryContext, boolean perOperatorCpuTimerEnabled, boolean cpuTimerEnabled, OptionalInt totalPartitions)
void	failed(Throwable cause)
void	freeSpill(long bytes)
Set<Lifespan>	getCompletedDriverGroups() Returns the completed driver groups (excluding taskWide).
int	getFullGcCount()
io.airlift.units.Duration	getFullGcTime()
io.airlift.stats.CounterStat	getInputPositions()
io.airlift.units.DataSize	getMemoryReservation()
io.airlift.stats.CounterStat	getOutputDataSize()
io.airlift.stats.CounterStat	getOutputPositions()
List<PipelineContext>	getPipelineContexts()
io.airlift.stats.CounterStat	getProcessedInputDataSize()
QueryContext	getQueryContext()
io.airlift.units.DataSize	getRevocableMemoryReservation()
Session	getSession()
TaskState	getState()
io.airlift.units.DataSize	getSystemMemoryReservation()
TaskId	getTaskId()
MemoryTrackingContext	getTaskMemoryContext()
TaskStats	getTaskStats()
OptionalInt	getTotalPartitions()
boolean	isCpuTimerEnabled()
boolean	isDone()
boolean	isPerOperatorCpuTimerEnabled()
LocalMemoryContext	localSystemMemoryContext()
void	moreMemoryAvailable()
com.google.common.util.concurrent.ListenableFuture<?>	reserveSpill(long bytes)
void	start()

Methods inherited from class java.lang.Object

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

Method Detail

createTaskContext

public static TaskContext createTaskContext(QueryContext queryContext,
                                            TaskStateMachine taskStateMachine,
                                            io.airlift.stats.GcMonitor gcMonitor,
                                            Executor notificationExecutor,
                                            ScheduledExecutorService yieldExecutor,
                                            Session session,
                                            MemoryTrackingContext taskMemoryContext,
                                            boolean perOperatorCpuTimerEnabled,
                                            boolean cpuTimerEnabled,
                                            OptionalInt totalPartitions)

getTaskId

public TaskId getTaskId()

getTotalPartitions

public OptionalInt getTotalPartitions()

addPipelineContext

public PipelineContext addPipelineContext(int pipelineId,
                                          boolean inputPipeline,
                                          boolean outputPipeline,
                                          boolean partitioned)

getSession

public Session getSession()

start

public void start()

failed

public void failed(Throwable cause)

isDone

public boolean isDone()

getState

public TaskState getState()

getMemoryReservation

public io.airlift.units.DataSize getMemoryReservation()

getSystemMemoryReservation

public io.airlift.units.DataSize getSystemMemoryReservation()

getRevocableMemoryReservation

public io.airlift.units.DataSize getRevocableMemoryReservation()

getCompletedDriverGroups

public Set<Lifespan> getCompletedDriverGroups()

Returns the completed driver groups (excluding taskWide). A driver group is considered complete if all drivers associated with it has completed, and no new drivers associated with it will be created.

addCompletedDriverGroup

public void addCompletedDriverGroup(Lifespan driverGroup)

getPipelineContexts

public List<PipelineContext> getPipelineContexts()

reserveSpill

public com.google.common.util.concurrent.ListenableFuture<?> reserveSpill(long bytes)

freeSpill

public void freeSpill(long bytes)

localSystemMemoryContext

public LocalMemoryContext localSystemMemoryContext()

moreMemoryAvailable

public void moreMemoryAvailable()

isPerOperatorCpuTimerEnabled

public boolean isPerOperatorCpuTimerEnabled()

isCpuTimerEnabled

public boolean isCpuTimerEnabled()

getProcessedInputDataSize

public io.airlift.stats.CounterStat getProcessedInputDataSize()

getInputPositions

public io.airlift.stats.CounterStat getInputPositions()

getOutputDataSize

public io.airlift.stats.CounterStat getOutputDataSize()

getOutputPositions

public io.airlift.stats.CounterStat getOutputPositions()

getFullGcTime

public io.airlift.units.Duration getFullGcTime()

getFullGcCount

public int getFullGcCount()

getTaskStats

public TaskStats getTaskStats()

accept

public <C,R> R accept(QueryContextVisitor<C,R> visitor,
                      C context)

acceptChildren

public <C,R> List<R> acceptChildren(QueryContextVisitor<C,R> visitor,
                                    C context)

getTaskMemoryContext

public MemoryTrackingContext getTaskMemoryContext()

getQueryContext

public QueryContext getQueryContext()