Java™ How To Program (Early Objects), Tenth Edition

Class SynchronizedBuffer

The synchronization is handled in class SynchronizedBuffer’s blockingPut and blockingGet methods (Fig. 23.16), which implements interface Buffer (line 4). Thus, the Producer’s and Consumer’s run methods simply call the shared object’s synchronized blockingPut and blockingGet methods. Again, we output messages from this class’s synchronized methods for demonstration purposes only—I/O should not be performed in synchronized blocks, because it’s important to minimize the amount of time that an object is “locked.”

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 1   // Fig. 23.16: SynchronizedBuffer.java 2   // Synchronizing access to shared mutable data using Object 3   // methods wait and notifyAll. 4   public class SynchronizedBuffer ...