Home » Tag Archives: Queue

Tag Archives: Queue

Changing delay, and hence the order, in a DelayQueue

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So I was looking at building a simple object cache that expires the objects after a given time. The obvious mechanism for this is the use the DelayedQueue class from the concurrency package in Java; but I wanted to know if it way possible to update the delay after an object has been added to the queue. Looking at the ...

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Using Delayed queues in practice

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Often there are use cases when you have some kind of work or job queue and there is a need not to handle each work item or job immediately but with some delay. For example, if user clicks a button which triggers some work to be done, and one second later user realizes he / she was mistaken and job ...

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Java Best Practices – Queue battle and the Linked ConcurrentHashMap

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Continuing our series of articles concerning proposed practices while working with the Java programming language, we are going to perform a performance comparison between four popular Queue implementation classes with relevant semantics. To make things more realistic we are going to test against a multi–threading environment so as to discuss and demonstrate how to utilize ArrayBlockingQueue, ConcurrentLinkedQueue, LinkedBlockingQueue and/or LinkedList ...

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