java security: protection domain

hi all
i asked this yesterday, but there is no one answer me. i thought
maybe i hadn't discripted clear.  here is the question:  there is a
directory /root/user/aaa/bbb directory, and i give the directory
FilePermission ("/root/user/aaa/bbb", "read,write"); permission. does
that means the application can read and write in the subdirectory(/
root/user/aaa/bbb/ccc/touch.c).




thanks

best wish

Allen

czp.opensource@gmail.com wrote:
> hi all
>     i asked this yesterday,

It would be better to have made your second posting a reply to the
first. Now you have fragmented any answers you get.


> but there is no one answer me. i thought
> maybe i hadn't discripted clear.

I didn't answer because I didn't understand your question.


> here is the question:  there is a
> directory /root/user/aaa/bbb directory, and i give the directory
> FilePermission ("/root/user/aaa/bbb", "read,write"); permission.

Do you mean java.io.FilePermission?

Do you refer to Java code running as an Applet or otherwise under a
Security Manager?


> does
> that means the application can read and write in the subdirectory(/
> root/user/aaa/bbb/ccc/touch.c).

"A permission object represents, but does not grant access to, a system
resource." - API documentation for java.io.FilePermission


I expect that if you explain more carefully what you are trying to
achieve, or provide a sample program, someone more knowledgeable will be
able to answer your question.

--
RGB