--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/InterfaceTraverser.java	Sun Oct 19 18:34:58 2014 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/traverser/InterfaceTraverser.java	Tue Oct 21 19:47:25 2014 +0900
@@ -21,41 +21,32 @@
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Pair;
 import jp.ac.u_ryukyu.ie.cr.tatsuki.jungle.query.PathNodeIterator;
 import jp.ac.u_ryukyu.ie.cr.tatsuki.jungle.query.Query;
+import jp.ac.u_ryukyu.ie.cr.tatsuki.jungle.store.index.IndexManager;
 
 public class InterfaceTraverser {
 
 	//InterfaceTraverser traverser;
 	TreeNode node;
 	TreeMap<String, TreeMap<String, List<Pair<TreeNode, NodePath>>>> index;
-	AtomicReservableReference<TreeContext>.Reservation reservation;
+	IndexManager indexManager;
 
-	public InterfaceTraverser(TreeNode _root, AtomicReservableReference<TreeContext>.Reservation reservation) {
+	public InterfaceTraverser(TreeNode _root, IndexManager indexManager) {
 		this.node = _root;
 		this.index = TreeMap.empty(Ord.stringOrd);
-		this.reservation = reservation;
+		this.indexManager = indexManager;
 	}
 
 	public InterfaceTraverser(
 			TreeNode _root,
 			TreeMap<String, TreeMap<String, List<Pair<TreeNode, NodePath>>>> index,
-			AtomicReservableReference<TreeContext>.Reservation reservation) {
+			IndexManager indexManager) {
 		this.node = _root;
 		this.index = index;
-		this.reservation = reservation;
+		this.indexManager = indexManager;
 	}
 
 	public void commitIndex(){
-		TreeContext tc = reservation.get();
-		ChangeSet cs = tc.getChangeSet();
-		TreeNode root = cs.getRoot();
-		ChangeSet prev = cs.prev();
-		ChangeList cl = cs.getChangeList();
-		String uuid = cs.uuid();
-		String treeName = cs.getTreeName();
-		long revision = cs.revision();
-		ChangeSet newCs = new DefaultChangeSet(root, prev,cl, uuid, treeName, revision, index);
-		TreeContext newTc = new DefaultTreeContext(root, newCs);
-		reservation.set(newTc);
+		indexManager.commit(index);
 	}
 	
 	public TreeMap<String, TreeMap<String, List<Pair<TreeNode, NodePath>>>> getIndex() {
@@ -80,7 +71,7 @@
 
 
 
-	public Iterator<Pair<TreeNode, NodePath>> find(final Query query, String key, String searchValue) {
+	public Iterator<Pair<TreeNode, NodePath>> find(Query query, String key, String searchValue) {
 		
 		if (index.get(key).isSome()) {
 
@@ -107,7 +98,6 @@
 						Pair<TreeNode, NodePath> pathNode = itNode.next();
 						String value = pathNode.left().getAttributes().getString(key);
 						Option<TreeMap<String, List<Pair<TreeNode, NodePath>>>> innerIndexOp = index.get(key);
-						System.out.println("value = "+ value);
 
 						if (value != null) {
 							if (innerIndexOp.isNone()) {