'java.util.concurrent'에 해당되는 글 1건

  1. 2010.11.22 java.util.concurrent package

java.util.concurrent package

Java 2010. 11. 22. 13:49
Doug Lea
http://g.oswego.edu/

5 things you didn't know about... java.util.concurrent
http://www.ibm.com/developerworks/java/library/j-5things4.html
http://www.ibm.com/developerworks/java/library/j-5things5.html

5 things you didn't know about... java.util.concurrent (한글)
https://www.ibm.com/developerworks/kr/library/j-5things4.html
http://www.ibm.com/developerworks/kr/library/j-5things5.html

 Part 1.
* TimeUnit : 시간 단위, TimeUnit.SECOND, TimeUnit.MILLISECOND
* CopyOnWriteArrayList : read often, write rarely
* BlockingQueue : queue.take() method 호출했을 때, Queue가 비어있으면 계속 기다린다
* ConcurrentMap : ConcurrentHashMap
* SynchronousQueues : BlockingQueue와 같고, 기다리는 consumner가 있어야만, producer가 insert할 수 있다

Part 2.
* Semaphore : new Semaphore(3), sem.acquire(), sem.release()
* CountDownLatch : new CountDownLatch(5), start.await(), start.countDown()
* Executor, ExecutorService, ScheduledExecutorService : run Runnable or Callable, No fussing with Thread.




자바캔 Java Concurrency : Executor & Callable/Future
http://javacan.tistory.com/entry/134

Java Tutorial - Lesson: Concurrency
http://download.oracle.com/javase/tutorial/essential/concurrency/

Concurrent Programming with J2SE 5.0
http://java.sun.com/developer/technicalArticles/J2SE/concurrency/


 Overview of Concurrency Utilities
Task scheduling framework : Executor
Concurrent collections
Atomic variables
Synchronizers : semaphore, mutex, barrier, latch, exchanger
Locks : limitation of built-in monitor, synchronized
Nanosecond-granurity
java.util.concurrent package
Semaphore : A classic concurrency tool
CyclicBarrier : A resettable multiway synchronization point
CountDownLatch : A utility for blocking until a given number of signals, events, or conditions hold.
Exchanger : Allows two thread to exchange objects at a rendezvous point, and can be useful in pipeline designs.
java.util.concurrent.locks
AtomicInteger number = new AtomicInteger(); number.getAndIncrement();






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