How to view all files / folders using a Jtree

Question

Hello,
I am developing a 'windows explorer' type application and need to create a JTree which displays all files and folders on a local and remote PC in the same way that windows explorer works.
Can anyone recommend a good way to read all files / folders and display them in a JTree?
Thanks in advance!!!!!!

Answer 1

Can anyone recommend a good way to read all files /
folders and display them in a JTree? Don't even try to read all the files at once; it could take too long and could consume a lot of memory. Create a JTree model that only reads the children of node when required. I use a simple cache (I hate using a cache but in this case it is needed) to minimise the number of disk reads but I use a TreeExpansionListener to remove items from the cache when a node is about to be collapsed e.g.
    public void treeWillCollapse(TreeExpansionEvent event)
        Object lastElement = event.getPath().getLastPathComponent();
        childCache_.remove(lastElement);
    }