--- a/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/transaction/DefaultTreeContext.java	Sun Aug 31 03:30:03 2014 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/transaction/DefaultTreeContext.java	Sun Aug 31 07:46:30 2014 +0900
@@ -3,12 +3,12 @@
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.ChangeSet;
 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.TreeNode;
 
-public class DefaultTreeContext<T extends TreeNode<T>> implements TreeContext<T>
+public class DefaultTreeContext<T extends TreeNode> implements TreeContext<T>
 {
-	private final T root;
+	private final TreeNode root;
 	private final ChangeSet cs;
 	
-	public DefaultTreeContext(T _newRoot,ChangeSet _cs)
+	public DefaultTreeContext(TreeNode _newRoot,ChangeSet _cs)
 	{
 		root = _newRoot;
 		cs = _cs;
@@ -21,7 +21,7 @@
 	}
 
 	@Override
-	public T getTreeNode()
+	public TreeNode getTreeNode()
 	{
 		return root;
 	}