java - 设计模式名称: Is it a factory?

Question

下面的类显示了与真实用例类似的内容。它始终为同一线程返回相同的实例。

public class LookingForName {

    private static final ThreadLocal<Something> threadLocal = 
        new ThreadLocal<Something>(){
            @Override
            protected Something initialValue() {
                return getSomethingSpecial(); // not relevant
            }
        };

    /**
     * @return always the same instance of "Something" for the current thread.
     */
    public static Something getInstance() {
        return threadLocal.get();
    }

}

你会怎么调用它？是“工厂”吗？ “值(value)持有者”？ “ThreadLocalStore”？

Answer 1

有些人简单地将其称为 ThreadLocal Pattern 。另一个已知名称是 Thread-local Storage (TLS) .