--- a/src/treecms/api/NodeChildren.java	Tue May 31 15:55:28 2011 +0900
+++ b/src/treecms/api/NodeChildren.java	Wed Jun 01 15:35:50 2011 +0900
@@ -3,18 +3,22 @@
 import java.util.List;
 import java.util.Set;
 
-public interface NodeChildren<T extends Node<T>>
+public interface NodeChildren<T extends NodeContext & NodeChildren<T>>
 {
 	public List<T> getList();
-	public Set<String> getUUIDSet();
+	
 	public boolean add(T _child);
-	public boolean addAll(NodeChildren<T> _children);
+	public boolean addAll(NodeChildren<T> _list);
+	public Set<String> getFamilyIDSet();
+	
 	public T get(String _uuid);
 	public T get(int _index);
 	public T remove(String _uuid);
 	public T remove(int _index);
-	public T replace(T _newChild);
-	public boolean contains(String _id);
-	public boolean swap(String _uuid1,String _uuid2);
+	public T replace(T _new);
+	
+	public boolean contains(NodeID _id);
+	public boolean swap(String _uuid,String _uuid2);
+	
 	public void clearChildren();
 }