Package org.apache.cassandra.concurrent

Class SingleThreadExecutorPlus

java.lang.Object

java.util.concurrent.AbstractExecutorService

java.util.concurrent.ThreadPoolExecutor

org.apache.cassandra.concurrent.ThreadPoolExecutorBase

org.apache.cassandra.concurrent.ThreadPoolExecutorPlus

org.apache.cassandra.concurrent.SingleThreadExecutorPlus

All Implemented Interfaces:

Executor, ExecutorService, ExecutorPlus, ResizableThreadPool, SequentialExecutorPlus

Direct Known Subclasses:

LocalAwareSingleThreadExecutorPlus

public class SingleThreadExecutorPlus
extends ThreadPoolExecutorPlus
implements SequentialExecutorPlus

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SingleThreadExecutorPlus.AtLeastOnce

Nested classes/interfaces inherited from class java.util.concurrent.ThreadPoolExecutor

ThreadPoolExecutor.AbortPolicy, ThreadPoolExecutor.CallerRunsPolicy, ThreadPoolExecutor.DiscardOldestPolicy, ThreadPoolExecutor.DiscardPolicy

Nested classes/interfaces inherited from interface org.apache.cassandra.concurrent.ExecutorPlus

ExecutorPlus.MaximumPoolSizeListener

Nested classes/interfaces inherited from interface org.apache.cassandra.concurrent.SequentialExecutorPlus

SequentialExecutorPlus.AtLeastOnceTrigger

Field Summary

Fields inherited from class org.apache.cassandra.concurrent.ThreadPoolExecutorBase

blockingExecutionHandler

Method Summary

Modifier and Type	Method	Description
SingleThreadExecutorPlus.AtLeastOnce	atLeastOnceTrigger(Runnable run)	Return an object for orchestrating the execution of this task at least once (in its entirety) after the trigger is invoked, i.e.
int	getCorePoolSize()	Returns core pool size of thread pool, the minimum number of workers (where that makes sense for a thread pool, SEPExecutor does not have a minimum size).
int	getMaximumPoolSize()	Returns maximum pool size of thread pool.
void	setCorePoolSize(int number)	Allows user to resize minimum size of the thread pool.
void	setMaximumPoolSize(int number)	Allows user to resize maximum size of the thread pool.

Methods inherited from class org.apache.cassandra.concurrent.ThreadPoolExecutorPlus

execute, execute, getMaxTasksQueued, inExecutor, newTaskFor, newTaskFor, submit, submit, submit, submit, submit, submit

Methods inherited from class org.apache.cassandra.concurrent.ThreadPoolExecutorBase

getActiveTaskCount, getCoreThreads, getMaximumThreads, getPendingTaskCount, getThreadFactory, onShutdown, onShutdown, setCoreThreads, setMaximumThreads, shutdown, shutdownNow, terminated, toString

Methods inherited from class java.util.concurrent.ThreadPoolExecutor

afterExecute, allowCoreThreadTimeOut, allowsCoreThreadTimeOut, awaitTermination, beforeExecute, finalize, getActiveCount, getCompletedTaskCount, getKeepAliveTime, getLargestPoolSize, getPoolSize, getQueue, getRejectedExecutionHandler, getTaskCount, isShutdown, isTerminated, isTerminating, prestartAllCoreThreads, prestartCoreThread, purge, remove, setKeepAliveTime, setRejectedExecutionHandler, setThreadFactory

Methods inherited from class java.util.concurrent.AbstractExecutorService

invokeAll, invokeAll, invokeAny, invokeAny

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.concurrent.Executor

execute

Methods inherited from interface org.apache.cassandra.concurrent.ExecutorPlus

execute, inExecutor, invokeAll, invokeAll, invokeAny, invokeAny, maybeExecuteImmediately, submit, submit, submit, submit, submit, submit

Methods inherited from interface java.util.concurrent.ExecutorService

awaitTermination, isShutdown, isTerminated, shutdown, shutdownNow

Methods inherited from interface org.apache.cassandra.concurrent.ResizableThreadPool

getActiveTaskCount, getCompletedTaskCount, getMaxTasksQueued, getPendingTaskCount, oldestTaskQueueTime

Method Details

getCorePoolSize

public int getCorePoolSize()

Description copied from interface: ResizableThreadPool

Returns core pool size of thread pool, the minimum number of workers (where that makes sense for a thread pool, SEPExecutor does not have a minimum size).

Specified by:

getCorePoolSize in interface ResizableThreadPool

Overrides:

getCorePoolSize in class ThreadPoolExecutor

setCorePoolSize

public void setCorePoolSize(int number)

Description copied from interface: ResizableThreadPool

Allows user to resize minimum size of the thread pool.

Specified by:

setCorePoolSize in interface ResizableThreadPool

Overrides:

setCorePoolSize in class ThreadPoolExecutor

getMaximumPoolSize

public int getMaximumPoolSize()

Description copied from interface: ResizableThreadPool

Returns maximum pool size of thread pool.

Specified by:

getMaximumPoolSize in interface ResizableThreadPool

Overrides:

getMaximumPoolSize in class ThreadPoolExecutor

setMaximumPoolSize

public void setMaximumPoolSize(int number)

Description copied from interface: ResizableThreadPool

Allows user to resize maximum size of the thread pool.

Specified by:

setMaximumPoolSize in interface ResizableThreadPool

Overrides:

setMaximumPoolSize in class ThreadPoolExecutor

atLeastOnceTrigger

public SingleThreadExecutorPlus.AtLeastOnce atLeastOnceTrigger(Runnable run)

Description copied from interface: SequentialExecutorPlus

Return an object for orchestrating the execution of this task at least once (in its entirety) after the trigger is invoked, i.e. saturating the number of pending tasks at 1 (2 including any possibly executing at the time of invocation)

Specified by:

atLeastOnceTrigger in interface SequentialExecutorPlus