sequence.java

java concurrency in practice 源码. JAVA并发设计

package net.jcip.examples;

import net.jcip.annotations.*;

/**
 * Sequence
 *
 * @author Brian Goetz and Tim Peierls
 */

@ThreadSafe
public class Sequence {
    @GuardedBy("this") private int nextValue;

    public synchronized int getNext() {
        return nextValue++;
    }
}