AbstractPreferences.java (isUserNode): Implemented.

	* java/util/prefs/AbstractPreferences.java (isUserNode):
	Implemented.

From-SVN: r63382

libjava/ChangeLog

 2003-02-24  Tom Tromey  <tromey@redhat.com>
 
+	* java/util/prefs/AbstractPreferences.java (isUserNode):
+	Implemented.
+
+2003-02-24  Tom Tromey  <tromey@redhat.com>
+
 	* java/lang/ClassLoader.java (defineClass(byte[],int,int)):
 	Deprecate.
 	* java/lang/Thread.java (resume): Deprecate.

libjava/java/util/prefs/AbstractPreferences.java

 /* AbstractPreferences - Partial implementation of a Preference node
-   Copyright (C) 2001 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2003 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -51,8 +51,6 @@ import gnu.java.util.prefs.NodeWriter;
 /**
  * Partial implementation of a Preference node.
  *
- * Methods that still need to be implemented are <code>isUserNode(), XXX
- *
  * @since 1.4
  * @author Mark Wielaard (mark@klomp.org)
  */
@@ -158,7 +156,12 @@ public abstract class AbstractPreferences extends Preferences {
      * Returns true if this node comes from the user preferences tree, false
      * if it comes from the system preferences tree.
      */
-    abstract public boolean isUserNode();
+    public boolean isUserNode() {
+        AbstractPreferences root = this;
+	while (root.parent != null)
+	    root = root.parent;
+	return root == Preferences.userRoot();
+    }
 
     /**
      * Returns the name of this preferences node. The name of the node cannot