静态上下文中的 Java 方法调用链 [英] Java method call chaining in static context

问题描述

在 StringBuilder 类中，我可以这样做:

In StringBuilder class I can do like this:

StringBuilder sb = new StringBuilder();
sb.append( "asd").append(34);

方法追加返回 StringBuilder 实例，我可以继续调用它.

method append returns StringBuilder instance, and I can continuosly call that.

我的问题是可以在静态方法上下文中这样做吗?没有类实例

My question is it possible to do so in static method context? without class instance

推荐答案

是的.像这样(未经测试).

Yes. Like this (untested).

public class Static {

  private final static Static INSTANCE = new Static();

  public static Static doStuff(...) {
     ...;
     return INSTANCE;
  }

  public static Static doOtherStuff() {
    ....
    return INSTANCE;
  }
}

您现在可以使用类似的代码.

You can now have code like.

Static.doStuff(...).doOtherStuff(...).doStuff(...);

不过我建议不要这样做.

I would recommend against it though.

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