Java中的包访问（受保护的修饰符）

Question

Suppose I have a package:

package com.g00gle.car

and

package com.g00gle.car.stereo

Is it possible to have a class in com.g00gle.car to access a class member in com.google.car.stereo? (Assuming that class member is labeled protected).

The answer is no... (by default) but is there a way to circumvent that? I have an application that I want to cut into distinct chunks... and to do that, I create extensions of the package. What's discouraging is the loss of package private access.

Answer 1

This need will be addressed in Java 7 with superpackages . Or at least it was going to be. Everything about Java 7 is currently up in the air.

• JSR 294: Improved Modularity Support for the Java Programming Language

Edit

Thanks for the link from Peter Štibraný in the comments below. Mark Reinhold's blog indicates this has been moved to Java 8 for release sometime in 2012 (take both the release and the release date with a grain of salt).

Answer 2

You can throw in a method in com.google.car.[classname] that provides access to the protected member:

protected Member member;

...

public Member getMember(){
   return member;
}