Implementazione parziale di tree

tree/TreePosition.java

@@ -0,0 +1,20 @@
+package tree;
+
+import position.Position;
+import position.PositionList;
+
+/**
+ * Created with xgiovio.macbookair.
+ * User: xgiovio
+ * Date: 07/04/14
+ * Time: 15:31
+ */
+public interface TreePosition<E> extends Position<E> {
+
+    public void setElement(E o);
+    public PositionList<Position<E>> getChildren ();
+    public void setChildren (PositionList<Position<E>> c);
+    public TreePosition<E> getParent();
+    public void setParent (TreePosition<E> v);
+
+}