io.prestosql.memory

Class QueryContext

java.lang.Object

io.prestosql.memory.QueryContext

@ThreadSafe
public class QueryContext
extends Object

Constructor Summary

Constructors

Constructor and Description
QueryContext(QueryId queryId, io.airlift.units.DataSize maxUserMemory, io.airlift.units.DataSize maxTotalMemory, MemoryPool memoryPool, io.airlift.stats.GcMonitor gcMonitor, Executor notificationExecutor, ScheduledExecutorService yieldExecutor, io.airlift.units.DataSize maxSpill, SpillSpaceTracker spillSpaceTracker)

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)
TaskContext	addTaskContext(TaskStateMachine taskStateMachine, Session session, boolean perOperatorCpuTimerEnabled, boolean cpuTimerEnabled, OptionalInt totalPartitions)
void	freeSpill(long bytes)
MemoryPool	getMemoryPool()
TaskContext	getTaskContextByTaskId(TaskId taskId)
com.google.common.util.concurrent.ListenableFuture<?>	reserveSpill(long bytes)
void	setMemoryPool(MemoryPool newMemoryPool)
void	setResourceOvercommit()

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryContext

public QueryContext(QueryId queryId,
                    io.airlift.units.DataSize maxUserMemory,
                    io.airlift.units.DataSize maxTotalMemory,
                    MemoryPool memoryPool,
                    io.airlift.stats.GcMonitor gcMonitor,
                    Executor notificationExecutor,
                    ScheduledExecutorService yieldExecutor,
                    io.airlift.units.DataSize maxSpill,
                    SpillSpaceTracker spillSpaceTracker)

Method Detail

setResourceOvercommit

public void setResourceOvercommit()

reserveSpill

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

freeSpill

public void freeSpill(long bytes)

setMemoryPool

public void setMemoryPool(MemoryPool newMemoryPool)

getMemoryPool

public MemoryPool getMemoryPool()

addTaskContext

public TaskContext addTaskContext(TaskStateMachine taskStateMachine,
                                  Session session,
                                  boolean perOperatorCpuTimerEnabled,
                                  boolean cpuTimerEnabled,
                                  OptionalInt totalPartitions)

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)

getTaskContextByTaskId

public TaskContext getTaskContextByTaskId(TaskId taskId)