Send File object thru ObjectOutputStream ObjectInputStream

[Lim Wing Hoe]

Is this possible to send a File Object using such stream?
E.g. writeObject(myFile)


--



Best Regards,
Wing Hoe
---------------------------------------------------------------
Email: winghoe@hotmail.com
ICQ: 2213281
www: http://pwp.maxis.net.my/winghoe
Job Seeking Status : Active
Availability : May 2001 (after degree course finish)
---------------------------------------------------------------

[Paul Clapham]

I don't know the answer to that, but the way to find out is to look in the
Java documentation for the File class. The answer is Yes if and only if it
implements Serializable.

PC2

Lim Wing Hoe <winghoe@hotmail.com> wrote in message
news:3a462a19@news.devx.com...
> Is this possible to send a File Object using such stream?
> E.g. writeObject(myFile)

[Lim Wing Hoe]

Hi guys,

I did some research on my own. Must say Sun's Discussion Forum is really
packed!
What I found out is, if I create a File object, and send the object thru the
object streams, the ACTUAL content of the file is not sent. Rather, it's
something like a reference or object thingy only.

Also, I found some bizzare problems when I send the File objects from the
server to the client.

What happens is, some of the File objects lost the ability to determine
whether it's a file or a directory using isDirectory() / isFile() methods.
Thus, it caused some irregularities when I use JList and ListCellRenderer to
place the folder/file icon next to the text. This include the path thingy
that got lost with some of the File objects.

Everything works file in the server side. Only when the File objects are
sent to the client, such problem occurs.

What I believe to have happen is, the path for the File objects will be
invalid, once it has been sent to the client. You know, if you refer to a
file in a webserver, you should use something like www.sun.com/myfile.txt
kind of convention? The File objects that were sent from the server may
still retain something like /pub/myFile.txt.

The only way I can get the file lists thru to the client is get the name
representation of the file object using getName() method, save the names
into Vector, send it to the client, show it as files with the file icon.

If I want to send a file (the content that is) from the client to the server
or vice versa, it has been some recommendation to use input/output streams
to send the file as bytes.

Oh yeah, hope it's not too late to say merry christmas to you all...

This file transfer project has been bugging me for the past few days.

--



Best Regards,
Wing Hoe
---------------------------------------------------------------
Email: winghoe@hotmail.com
ICQ: 2213281
www: http://pwp.maxis.net.my/winghoe
Job Seeking Status : Active
Availability : May 2001 (after degree course finish)
---------------------------------------------------------------


"Paul Clapham" <pclapham@core-mark.com> wrote in message
news:3a48f7b8@news.devx.com...
> I don't know the answer to that, but the way to find out is to look in the
> Java documentation for the File class. The answer is Yes if and only if
it
> implements Serializable.
>
> PC2
>
> Lim Wing Hoe <winghoe@hotmail.com> wrote in message
> news:3a462a19@news.devx.com...
> > Is this possible to send a File Object using such stream?
> > E.g. writeObject(myFile)
>
>
>
>