--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/jungle/store/trasnformer/AppendChildAt.java	Wed Nov 30 01:47:55 2016 +0900
@@ -0,0 +1,44 @@
+package jp.ac.u_ryukyu.ie.cr.jungle.store.trasnformer;
+
+import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.TreeNode;
+import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.logger.LoggingNode;
+import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.logger.OperationLog;
+import jp.ac.u_ryukyu.ie.cr.jungle.util.DefaultEither;
+import jp.ac.u_ryukyu.ie.cr.jungle.util.Either;
+import jp.ac.u_ryukyu.ie.cr.jungle.util.Error;
+
+public class AppendChildAt implements NodeEditor
+{
+	private final int pos;
+	
+	public AppendChildAt(int _pos)
+	{
+		pos = _pos;
+	}
+
+	public Either<Error, LoggingNode> _edit(LoggingNode _e) 
+	{
+		Either<Error,LoggingNode> either = _e.getChildren().addNewChildAt(pos);
+		if(either.isA()){
+			// error
+			return either;
+		}
+		return DefaultEither.newB(either.b());
+	}
+	
+	@Override
+	public Either<Error, LoggingNode> edit(TreeNode _e) {
+		LoggingNode logNode = wrap(_e);
+		return _edit(logNode);
+	}
+
+	public LoggingNode wrap(TreeNode node) {
+		return new LoggingNode(node);
+	}
+
+	@Override
+	public LoggingNode wrap(TreeNode node, OperationLog op) {
+		return new LoggingNode(node, op);
+	}
+
+}