Package org.apache.camel.util.concurrent
Class RejectableThreadPoolExecutor
java.lang.Object
java.util.concurrent.AbstractExecutorService
java.util.concurrent.ThreadPoolExecutor
org.apache.camel.util.concurrent.RejectableThreadPoolExecutor
- All Implemented Interfaces:
Executor
,ExecutorService
Thread pool executor that creates
RejectableFutureTask
instead of FutureTask
when registering new tasks for execution.
Instances of RejectableFutureTask
are required to handle ThreadPoolRejectedPolicy.Abort
policies
correctly, e.g. notify Callable
and Runnable
tasks when they are rejected. To be notified of
rejection tasks have to implement Rejectable
interface:
public class RejectableTask implements Runnable, Rejectable {
@Override
public void run() {
// execute task
}
@Override
public void reject() {
// do something useful on rejection
}
}
If the task does not implement Rejectable
interface the behavior is exactly the same as with ordinary
ThreadPoolExecutor
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Nested Class Summary
Nested classes/interfaces inherited from class java.util.concurrent.ThreadPoolExecutor
ThreadPoolExecutor.AbortPolicy, ThreadPoolExecutor.CallerRunsPolicy, ThreadPoolExecutor.DiscardOldestPolicy, ThreadPoolExecutor.DiscardPolicy
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Constructor Summary
ConstructorsConstructorDescriptionRejectableThreadPoolExecutor
(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue) RejectableThreadPoolExecutor
(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, RejectedExecutionHandler handler) RejectableThreadPoolExecutor
(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory) RejectableThreadPoolExecutor
(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory, RejectedExecutionHandler handler) -
Method Summary
Modifier and TypeMethodDescriptionprotected <T> RunnableFuture<T>
newTaskFor
(Runnable runnable, T value) protected <T> RunnableFuture<T>
newTaskFor
(Callable<T> callable) toString()
Methods inherited from class java.util.concurrent.ThreadPoolExecutor
afterExecute, allowCoreThreadTimeOut, allowsCoreThreadTimeOut, awaitTermination, beforeExecute, execute, finalize, getActiveCount, getCompletedTaskCount, getCorePoolSize, getKeepAliveTime, getLargestPoolSize, getMaximumPoolSize, getPoolSize, getQueue, getRejectedExecutionHandler, getTaskCount, getThreadFactory, isShutdown, isTerminated, isTerminating, prestartAllCoreThreads, prestartCoreThread, purge, remove, setCorePoolSize, setKeepAliveTime, setMaximumPoolSize, setRejectedExecutionHandler, setThreadFactory, shutdown, shutdownNow, terminated
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Constructor Details
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RejectableThreadPoolExecutor
public RejectableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue) -
RejectableThreadPoolExecutor
public RejectableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory) -
RejectableThreadPoolExecutor
public RejectableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, RejectedExecutionHandler handler) -
RejectableThreadPoolExecutor
public RejectableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory, RejectedExecutionHandler handler)
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Method Details
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newTaskFor
- Overrides:
newTaskFor
in classAbstractExecutorService
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newTaskFor
- Overrides:
newTaskFor
in classAbstractExecutorService
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toString
- Overrides:
toString
in classThreadPoolExecutor
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