六合开奖结果查询-六合现场开奖结果-六合联盟开奖直播

【六合开奖结果查询-六合现场开奖结果-六合联盟开奖直播】2019我们可以看到管家婆-app下载-开奖结果-资料大全-六合-记录-现场直播拥有的赔率可以称得上是以一赚百的-本站提供2019最新资料大全免费分享、博远棋牌官方下载绿色下载等内容-注册赠送38彩金-为你提供最新最全积分小游戏。

来自 内地娱乐 2019-09-20 21:27 的文章
当前位置: 六合开奖结果查询 > 内地娱乐 > 正文

还是这段台词最能使我惊艳,隐式允许this引用逸

In view, a humble vaudevillian veteran cast vicariously as both victim and villain by the vicissitudes of fate. This visage, no mere veneer of vanity, is vestige of the vox populi, now vacant, vanished. However, this valorous visitation of a by-gone vexation, stands vivified, and has vowed to vanquish these venal and virulent vermin vanguarding vice and vouchsafing the violently vicious and voracious violation of volition. The only verdict is vengeance; a vendetta, held as a votive, not in vain, for the value and veracity of such shall one day vindicate the vigilant and the virtuous. Verily, this vichyssoise of verbiage veers most verbose . So let me simply add that it is my very good honor to meet you and you may call me V.

关于”隐式允许this引用逸出“
在《Java Concurrency in Practice》中,对于公布对象和数据逸出有两种示例,
里面之一是:
Listing 3.6. Allowing Internal Mutable State to Escape. Don't Do this.

© 本文版权归小编  混乱的时代狂刀  全部,任何方式转发请联系笔者。

class UnsafeStates {
 private String[] states = new String[] {
 "AK", "AL" ...
 };
 public String[] getStates() { return states; }
}

这一个好掌握;

别的三个示范是:
Listing 3.7. Implicitly Allowing the this Reference to Escape. Don't Do this.

public class ThisEscape {
 public ThisEscape(EventSource source) {
 source.registerListener(
 new EventListener() {
 public void onEvent {
 doSomething;
 }
 });
 }
}

小编以为“it implicitly publishes the enclosing ThisEscape instance as well, because inner class instances contain a hidden reference to the enclosing instance.”

小编的精雕细刻建议是:

If you are tempted to register an event listener or start a thread from a constructor, you can avoid the improper construction by using a private constructor and a public factory method, as shown in SafeListener in Listing 3.8.

Listing 3.8. Using a Factory Method to Prevent the this Reference from Escaping During Construction.

public class SafeListener {
 private final EventListener listener;private SafeListener() { listener = new EventListener() { public void onEvent { doSomething; } };}public static SafeListener newInstance(EventSource source) { SafeListener safe = new SafeListener(); source.registerListener(safe.listener); return safe;}

}

小编对于错误的原因是如此解释的:
ThisEscape illustrates an important special case of escapewhen the this references escapes during construction. When the inner EventListener instance is published, so is the enclosing ThisEscape instance. But an object is in a predictable, consistent state only after its constructor returns, so publishing an object from within its constructor can publish an incompletely constructed object. This is true even if the publication is the last statement in the constructor. If the this reference escapes during construction, the object is considered not properly constructed.
有哪个人能把那么些原因说南陈楚点,即:为啥说那是叁个未产生的靶子啊,一旦中间无名氏类这段代码推行完后,对象不就被注册了么?

本文由六合开奖结果查询发布于内地娱乐,转载请注明出处:还是这段台词最能使我惊艳,隐式允许this引用逸

关键词: 六合联盟开