--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/transaction/DefaultTreeNode.java	Sat Sep 06 15:22:46 2014 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/transaction/DefaultTreeNode.java	Mon Sep 08 17:03:08 2014 +0900
@@ -21,25 +21,13 @@
 	
 	public DefaultTreeNode()
 	{
-		this(NIL_LIST,NIL_MAP,new DefaultOperationLog());
+		this(NIL_LIST,NIL_MAP);
 	}
 	
 	public DefaultTreeNode(List<TreeNode> _children,TreeMap<String,ByteBuffer> _attrs)
 	{
-		this(_children, _attrs, new DefaultOperationLog());
-	}
-	
-	public DefaultTreeNode(TreeNode _node, OperationLog _log)
-	{
-		this(_node.getChildren().getChildrenAsRawList(), _node.getAttributes().getAttributesAsRawMap(), _log);
-	}
-	
-	
-	
-	public DefaultTreeNode(List<TreeNode> _children,TreeMap<String,ByteBuffer> _attrs, OperationLog _log){
 		attrs = _attrs;
 		children = _children;
-		log = _log;
 	}
 
 	@Override
@@ -74,17 +62,5 @@
 	{
 		return new DefaultTreeNode(children,attrs);
 	}
-
-	@Override
-	public OperationLog getLog() {
-		OperationLog _log = log;
-		log = new DefaultOperationLog();
-		return _log;
-	}
-	
-	@Override
-	public void putLog(OperationLog _log){
-		log = _log;
-	}
 	
 }