How can one change the Preferences path?

Question

Hello,
I've recently discovered the Preferences API and try to learn how to use it but I'm stuck on a problem right now: Is the only place to store my keys/values inside the "JavaSoft/prefs" node?
I have this piece of code so far:
     * The method used to store preference If no package is specified, the
     * current class' package will be used
     * @throws NullPointerException
     *                 If key or value is null.
     * @throws IllegalArgumentException
     *                 If key.length() exceeds MAX_KEY_LENGTH or if value.length
     *                 exceeds MAX_VALUE_LENGTH.
     * @throws IllegalStateException
     *                 If this node (or an ancestor) has been removed with the
     *                 removeNode() method.
     * @throws BackingStoreException
     *                 If this operation cannot be completed due to a failure in
     *                 the backing store, or inability to communicate with it.
    public void storePreference() throws IllegalArgumentException, NullPointerException, IllegalStateException,
         BackingStoreException
     // The node which will be used is the user specified one
     Preferences prefs = Preferences.userRoot().node(this.tree);
     //We add the listener here so that it is instantiated with the constructor
     prefs.addNodeChangeListener(this);
     prefs.addPreferenceChangeListener(this);
     prefs.put(this.keyName, this.keyValue);
     // Make sure the change is commit
     prefs.flush();
    }Where tree is the path (absolute) where to write data.
The problem is, whatever the way I approach the thing, I always end in something like:
|---+JavaSoft
| |---+Prefs
| |---MyNode: MyKeys / MyValues
When I would like something like
|---+JavaSoft
| |---+Prefs
|
|---+MyApplicationName
| |---+UserSettings
| | |---Edvard: MyKeys / MyValues
Hope I've been clear enough.
Thanks in advance for helping.
Edited by: airchtit on Jan 31, 2008 6:50 AM

Answer 1

While you can't specify arbitary sub-trees and especially not a specific position in the Registry (as the previous posters noted), you should not use userRoot() to store your preferences, but rather use "userNodeForPackage(SomeClassFromYourApplication.class)".
This way it will be ensured that your preferences nodes will not clash with those of other applications.