Move a directory?

[Max Power]

hi, i am trying to move a directory from c:\ to d:\. right now i am using this code:

success =
file.renameTo(
new File(dir, file.getName()));
 

this works fine, as long as i try to move the dir from c:\ to c:\programs or from c:\prgrams to c:\programs\hello. but as soon as i change the partition (c:\ to d:\) success is always false. can you imagine why?

THANKS

[Petr Blahos]

Hi Andreas,

you can't rely on that. JavaDoc says:

Whether or not this method can move a file from
one filesystem to another is platform-dependent.

That's it. As to your question why: because it is the
documented behaviour of the function. I am affraid you
will have to copy file by file and then at the end
remove the source.

Petr

[Max Power]

hello, oh i see. but what if i do not have the permission to delete the directory after copying it?

thanks :-)

[Petr Blahos]

The only thing I can tell you is:
It is not trivial to move a directory. Many things can go
wrong and this permission to delete is only one of them.
You can:
- notify user that it was copied but not removed (I think
most file managers would do this)
- delete what you have copied so far
- ask user what to do
- ...

P.