--- a/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/LevelOrderIndices.java	Wed Mar 31 12:18:03 2010 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/jfreechart/LevelOrderIndices.java	Wed Mar 31 13:48:07 2010 +0000
@@ -7,25 +7,56 @@
  */
 public class LevelOrderIndices
 {
+    /**
+     *
+     */
     public interface Visitor {
+        /**
+         *
+         * @param index
+         * @return
+         */
         Object visit(int index);
     }
 
+    /**
+     *
+     */
     protected int from;
+    /**
+     *
+     */
     protected int to;
 
+    /**
+     *
+     */
     public LevelOrderIndices() {
     }
 
+    /**
+     *
+     * @param to
+     */
     public LevelOrderIndices(int to) {
         this(0, to);
     }
 
+    /**
+     *
+     * @param from
+     * @param to
+     */
     public LevelOrderIndices(int from, int to) {
         this.from = Math.min(from, to);
         this.to   = Math.max(from, to);
     }
 
+    /**
+     *
+     * @param visitor
+     * @return
+     */
     public Object visit(Visitor visitor) {
         LinkedList<int[]> queue = new LinkedList<int[]>();