--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/DefaultJungle.java	Tue Aug 26 07:41:35 2014 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/DefaultJungle.java	Wed Aug 27 05:07:50 2014 +0900
@@ -2,6 +2,7 @@
 
 import java.util.Iterator;
 import java.util.concurrent.ConcurrentHashMap;
+
 import fj.data.List;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.ChangeList;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.Journal;
@@ -10,6 +11,7 @@
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.TreeEditor;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.DefaultNodePath;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.DefaultTreeEditor;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.TreeNode;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.TreeOperation;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultChangeSet;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultTreeContext;
@@ -18,16 +20,16 @@
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Either;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error;
 
-public class DefaultJungle implements Jungle
+public class DefaultJungle<T extends TreeNode<T>> implements Jungle
 {
 	private Journal journal;
 	private ConcurrentHashMap<String,JungleTree> trees;
 	private String uuid;
 	private TreeEditor editor;
 	
-	public static void main(String _args[])
+	public static <T extends TreeNode<T>>void main(String _args[])
 	{
-		DefaultJungle j = new DefaultJungle(null,"hoge",new DefaultTreeEditor(new DefaultTraverser()));
+		DefaultJungle<T> j = new DefaultJungle(null,"hoge",new DefaultTreeEditor(new DefaultTraverser()));
 		JungleTree t = j.createNewTree("fuga");
 		
 		JungleTreeEditor e1 = t.getTreeEditor();
@@ -76,7 +78,7 @@
 		};
 		
 		DefaultTreeNode root = new DefaultTreeNode();
-		ChangeSet set = new DefaultChangeSet(root.getAsNode(),null,list,uuid,_name,0);
+		ChangeSet<T> set = new DefaultChangeSet(root,null,list,uuid,_name,0);
 		DefaultTreeContext<DefaultTreeNode> tc = new DefaultTreeContext<DefaultTreeNode>(root,set);
 		JungleTree newTree = new DefaultJungleTree<DefaultTreeNode>(tc,uuid,journal.getWriter(),editor);
 		if(trees.putIfAbsent(_name,newTree) != null){