--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/transaction/DefaultTransactionManager.java	Tue Aug 26 07:41:35 2014 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/transaction/DefaultTransactionManager.java	Wed Aug 27 01:02:11 2014 +0900
@@ -32,9 +32,9 @@
 	}
 	
 	@Override
-	public Either<Error,TransactionManager<T>> commit(T _newRoot,final TreeOperationLog _log)
+	public Either<Error,TransactionManager<T>> commit(TreeNode<T> _newRoot,final TreeOperationLog _log)
 	{
-		ChangeSet cs = tip.getChangeSet();
+		ChangeSet<T> cs = tip.getChangeSet();
 		long currentRevision = cs.revision();
 		long nextRevision = currentRevision + 1;
 		
@@ -54,8 +54,8 @@
 			}
 		};
 		
-		Node root = _newRoot.getAsNode();
-		DefaultChangeSet newCs = new DefaultChangeSet(root,cs,list,uuid, _treeName, nextRevision);
+		TreeNode<T> root = _newRoot;
+		DefaultChangeSet<T> newCs = new DefaultChangeSet(root,cs,list,uuid, _treeName, nextRevision);
 		DefaultTreeContext<T> newContext = new DefaultTreeContext<T>(_newRoot,newCs);
 		
 		@SuppressWarnings("rawtypes")
@@ -81,7 +81,7 @@
 	@Override
 	public long getRevision()
 	{
-		ChangeSet cs = tip.getChangeSet();
+		ChangeSet<T> cs = tip.getChangeSet();
 		return cs.revision();
 	}
 }