--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/TreeNode.java	Sat Sep 06 15:22:46 2014 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/store/impl/TreeNode.java	Mon Sep 08 17:03:08 2014 +0900
@@ -12,8 +12,4 @@
 	
 	public TreeNode createNewNode();
 	
-	public OperationLog getLog();
-	
-	public void putLog(OperationLog _log);
-	
 }

--- 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;
-	}
 	
 }

--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/transaction/DefaultTreeNodeAttribute.java	Sat Sep 06 15:22:46 2014 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/transaction/DefaultTreeNodeAttribute.java	Mon Sep 08 17:03:08 2014 +0900
@@ -53,9 +53,7 @@
 		}
 		
 		TreeMap<String,ByteBuffer> newMap = attrs.delete(_key);
-		
-		OperationLog op = new DefaultOperationLog();;
-		TreeNode newNode = new DefaultTreeNode(children,newMap,op.add(new DeleteAttributeOperation(_key)));
+		TreeNode newNode = new DefaultTreeNode(children,newMap);
 		return DefaultEither.newB(newNode);
 	}
 
@@ -71,8 +69,7 @@
 		
 		//TreeMap<String,ByteBuffer> raw = attrs.getAttributesAsRawMap();
 		TreeMap<String,ByteBuffer> newMap = attrs.set(_key,_value);
-		TreeNode newNode = new DefaultTreeNode(children,newMap,log.add(new PutAttributeOperation(_key,_value)));
-		
+		TreeNode newNode = new DefaultTreeNode(children,newMap);
 		return DefaultEither.newB(newNode);
 	}
 

--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/transaction/DefaultTreeNodeChildren.java	Sat Sep 06 15:22:46 2014 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/transaction/DefaultTreeNodeChildren.java	Mon Sep 08 17:03:08 2014 +0900
@@ -61,9 +61,7 @@
 		
 		P2<List<TreeNode>,List<TreeNode>> split = children.splitAt(_pos);
 		List<TreeNode> newChildren = split._1().snoc(new DefaultTreeNode()).append(split._2());
-		OperationLog op = new DefaultOperationLog();
-		TreeNode newNode = new DefaultTreeNode(newChildren,attrs,op.add(new AppendChildAtOperation(_pos)));
-
+		TreeNode newNode = new DefaultTreeNode(newChildren,attrs);
 		return DefaultEither.newB(newNode);
 	}
 
@@ -76,9 +74,7 @@
 				
 		P2<List<TreeNode>,List<TreeNode>> split = children.splitAt(_pos);
 		List<TreeNode> newChildren = split._1().append(split._2().tail());
-		
-		OperationLog op = new DefaultOperationLog();
-		TreeNode newNode = new DefaultTreeNode(newChildren,attrs,op.add(new DeleteChildAtOperation(_pos)));
+		TreeNode newNode = new DefaultTreeNode(newChildren,attrs);
 		
 		return DefaultEither.newB(newNode);
 	}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/BruteForceTraverser.java	Mon Sep 08 17:03:08 2014 +0900
@@ -0,0 +1,56 @@
+package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.traverser;
+
+import fj.data.List;
+import fj.data.TreeMap;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.Children;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.NodePath;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.DefaultNodePath;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.TreeNode;
+import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Pair;
+
+public class BruteForceTraverser {
+	List<Pair<NodePath,TreeNode>> pathNodes;
+	TreeMap<String,TreeNode> nodeIndex;
+	TreeMap<String,String> attributeIndex;	
+	
+	BruteForceTraverser(TreeNode _root){
+		pathNodes = this.traverse(_root,new DefaultNodePath(),-1);
+	}
+	
+	public List<Pair<NodePath,TreeNode>> traverse(TreeNode _node ,NodePath _path ,int _pos){
+		
+		Children  children = _node.getChildren();
+		List<Pair<NodePath,TreeNode>> list = List.nil();
+		int pathCount = _pos;
+		if(children.size() == 0){
+			list = list.cons(new Pair<NodePath,TreeNode>(_path.add(_pos),_node));
+			return list;
+		}
+		
+			for(TreeNode child : children){
+				list = list.append(traverse(child,_path,pathCount));
+				pathCount++;
+			}
+			
+			list = list.cons(new Pair<NodePath,TreeNode>(_path.add(_pos),_node));
+		return list;
+	}
+	
+	public List<Pair<NodePath,TreeNode>> search(String _key, String _Attribute){
+		List<Pair<NodePath,TreeNode>> pathNode = List.nil();
+		for(Pair<NodePath,TreeNode> searchNode : pathNodes){
+			if(searchNode.right().getAttributes().get(_key).equals(_Attribute))
+				pathNode = pathNode.cons(searchNode);
+		}
+		return pathNode;
+	}
+	
+	public int count(String _key, String _attribute){
+		return this.search(_key,_attribute).length();
+	}
+	
+	public List<Pair<NodePath,TreeNode>> distinct(String _key ,String... _attribute){
+		return null;
+	}
+
+}