io.prestosql.execution.scheduler

Class FixedCountScheduler

java.lang.Object

io.prestosql.execution.scheduler.FixedCountScheduler

All Implemented Interfaces:

StageScheduler, Closeable, AutoCloseable

public class FixedCountScheduler
extends Object
implements StageScheduler

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	FixedCountScheduler.TaskScheduler

Constructor Summary

Constructors

Constructor and Description
FixedCountScheduler(FixedCountScheduler.TaskScheduler taskScheduler, List<InternalNode> partitionToNode)
FixedCountScheduler(SqlStageExecution stage, List<InternalNode> partitionToNode)

Method Summary

Modifier and Type	Method and Description
ScheduleResult	schedule() Schedules as much work as possible without blocking.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.prestosql.execution.scheduler.StageScheduler

close

Constructor Detail

FixedCountScheduler

public FixedCountScheduler(SqlStageExecution stage,
                           List<InternalNode> partitionToNode)

FixedCountScheduler

public FixedCountScheduler(FixedCountScheduler.TaskScheduler taskScheduler,
                           List<InternalNode> partitionToNode)

Method Detail

schedule

public ScheduleResult schedule()

Description copied from interface: StageScheduler

Schedules as much work as possible without blocking. The schedule results is a hint to the query scheduler if and when the stage scheduler should be invoked again. It is important to note that this is only a hint and the query scheduler may call the schedule method at any time.

Specified by:

schedule in interface StageScheduler