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Groups > comp.lang.java.programmer > #27388

Re: building "path expressions"

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On 01/23/2014 11:37 AM, Stefan Ram wrote:
>    When creating an interface for a library, sometimes one wants the user
>    to see nesting in a »path expression«, like for example »a.b.c.d.e.f.g.h«
>    to convey the idea that h is a part of g, which is a part of f, and so on.

Do you have an example using some real world names to help me understand?
Can the names help the user to visualize the nesting, or is some other 
markup required?
I'm drawing a complete blank here.

>    I think it is funny that one can use either package names /or/ nested
>    classes /or/ fields to implement such a path, without this choice being
>    visible in the »path expression«. For example, one posssibility to
>    implement a »path expression« »a.b.c.d.e.f.g.h« might be:
>
> package a.b.c;
> class G { int h = 8; }
> class F { G g = new G(); }
> class d { static class e { static F f = new F(); }}
> public final class Main
> { public static void main( String[] args )
>    { java.lang.System.out.println( a.b.c.d.e.f.g.h );  }}
>

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Re: building "path expressions" Jeff Higgins <jeff@invalid.invalid> - 2014-01-23 15:27 -0500
  Re: building "path expressions" Jeff Higgins <jeff@invalid.invalid> - 2014-01-23 16:11 -0500
  Re: building "path expressions" Jeff Higgins <jeff@invalid.invalid> - 2014-01-23 16:52 -0500
    Re: building "path expressions" Jeff Higgins <jeff@invalid.invalid> - 2014-01-23 17:29 -0500
      Re: building "path expressions" markspace <markspace@nospam.nospam> - 2014-01-23 15:33 -0800

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