The Producer class – in our case BetProducer – has two responsibilities: to read bets from file and to add them to the queue. When the queue is not empty and not done, we get a bet from the queue and return it. If both conditions are true, we must wait till someone adds bet to queue and notifies that the queue is not empty anymore. Just like add, remove uses the synchronized keyword.įirst, we need to check if the queue is empty and if it is not marked as isDone. The first class we are going to create is BetsSimulator. For the sake of simplicity, we will write those bets to a file and read from it. Let us say that for one draw – which occurs every week – our game can receive about 1.000.000 bets. To follow this tutorial, you need to have a basic knowledge of threads in Java, as well as any version of Java installed on your machine.Ī good real-life example is Lotto. This blog post will help you understand how we can implement the producer– consumer pattern using a thread-safe queue and wait/notify methods that belong to the Java Object class. In other words, either a single producer or a single consumer can access the structure at any given time. Resource accessed by producer or consumer must be thread-safe. The producers are responsible for adding to some shared resource and the consumers are responsible for removing from that resource. ![]() Producer-consumer is a classic concurrent programming design pattern, where processes are designated as either producers or consumers.
0 Comments
Leave a Reply. |