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revision 1.3 by dl, Sat Jun 7 11:54:08 2003 UTC revision 1.5 by dholmes, Thu Jun 26 04:56:11 2003 UTC
# Line 57  shutdown.  The two primary implementatio Line 57  shutdown.  The two primary implementatio
57  flexible thread pool and {@link  flexible thread pool and {@link
58  java.util.concurrent.ScheduledExecutor}, which adds support for  java.util.concurrent.ScheduledExecutor}, which adds support for
59  delayed and periodic task execution.  These, and other Executors can  delayed and periodic task execution.  These, and other Executors can
60  be used in conjunction with a {@link FutureTask} to asynchronously  be used in conjunction with a {@link java.util.concurrent.FutureTask}
61    to asynchronously
62  start a potentially long-running computation and query the FutureTask  start a potentially long-running computation and query the FutureTask
63  to determine if its execution has completed, or cancel it.  to determine if its execution has completed, or cancel it.
64    
# Line 70  a few utilities methods for using them. Line 71  a few utilities methods for using them.
71  A basic (nonblocking) {@link java.util.Queue} interface extending  A basic (nonblocking) {@link java.util.Queue} interface extending
72  java.util.Collection is introduced into java.util. Existing class  java.util.Collection is introduced into java.util. Existing class
73  java.util.LinkedList is adapted to support Queue, and a new  java.util.LinkedList is adapted to support Queue, and a new
74  non-thread-safe {@link java.util.concurrent.java.util.PriorityQueue}  non-thread-safe {@link java.util.PriorityQueue}
75  is added.  The java.util.concurrent {@link  is added.  The java.util.concurrent {@link
76  java.util.concurrent.LinkedQueue} class supplies an efficient  java.util.concurrent.LinkedQueue} class supplies an efficient
77  thread-safe non-blocking queue.  thread-safe non-blocking queue.
# Line 81  blocking versions of put and take: {@lin Line 82  blocking versions of put and take: {@lin
82  java.util.concurrent.LinkedBlockingQueue}, {@link  java.util.concurrent.LinkedBlockingQueue}, {@link
83  java.util.concurrent.ArrayBlockingQueue}, {@link  java.util.concurrent.ArrayBlockingQueue}, {@link
84  java.util.concurrent.SynchronousQueue}, {@link  java.util.concurrent.SynchronousQueue}, {@link
85  java.util.concurrent.PriorityBlockingQueue}, and {@link DelayQueue}.  java.util.concurrent.PriorityBlockingQueue}, and
86    {@link java.util.concurrent.DelayQueue}.
87    
88    
89  <h2>Locks</h2>  <h2>Locks</h2>
# Line 132  Five classes aid common special-purpose Line 134  Five classes aid common special-purpose
134  java.util.concurrent.FairSemaphore} are classic concurrency tools.  java.util.concurrent.FairSemaphore} are classic concurrency tools.
135  {@link java.util.concurrent.CountDownLatch} is very simple yet very  {@link java.util.concurrent.CountDownLatch} is very simple yet very
136  common utility for blocking until a single signal, event, or condition  common utility for blocking until a single signal, event, or condition
137  holds.  A {link CyclicBarrier} is a resettable multiway  holds.  A {@link java.util.concurrent.CyclicBarrier} is a resettable multiway
138  synchronization point common in some styles of parallel  synchronization point common in some styles of parallel
139  programming. An {@link java.util.concurrent.Exchanger} allows two  programming. An {@link java.util.concurrent.Exchanger} allows two
140  threads to exchange objects at a rendezvous point.  threads to exchange objects at a rendezvous point.

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