--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/jp/ac/u_ryukyu/ie/cr/jungle/transaction/DefaultTreeNode.java	Wed Nov 30 01:47:55 2016 +0900
@@ -0,0 +1,60 @@
+package jp.ac.u_ryukyu.ie.cr.jungle.transaction;
+
+
+import jp.ac.u_ryukyu.ie.cr.jungle.data.list.List;
+import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.TreeNode;
+import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.TreeNodeChildren;
+import jp.ac.u_ryukyu.ie.cr.jungle.util.Either;
+import jp.ac.u_ryukyu.ie.cr.jungle.util.Error;
+import jp.ac.u_ryukyu.ie.cr.jungle.data.treemap.TreeMap;
+
+import java.nio.ByteBuffer;
+import java.rmi.dgc.VMID;
+
+public class DefaultTreeNode implements TreeNode {
+    private List<TreeNode> children;
+    private TreeMap<String, ByteBuffer> attrs;
+    final String nodeId = new VMID().toString();
+
+    private static final List<TreeNode> NIL_LIST = new List<>();
+
+    public DefaultTreeNode() {
+        this(NIL_LIST, new TreeMap<>());
+    }
+
+    public DefaultTreeNode(List<TreeNode> _children, TreeMap<String, ByteBuffer> _attrs) {
+        attrs = _attrs;
+        children = _children;
+    }
+
+    @Override
+    public DefaultTreeNodeChildren getChildren() {
+        return new DefaultTreeNodeChildren(children, attrs);
+    }
+
+    @Override
+    public DefaultTreeNodeAttribute getAttributes() {
+        return new DefaultTreeNodeAttribute(children, attrs);
+    }
+
+    @Override
+    public DefaultTreeNode createNewNode() {
+        return new DefaultTreeNode();
+    }
+
+    public DefaultTreeNode clone() {
+        return new DefaultTreeNode(children, attrs);
+    }
+
+    @Override
+    public Either<Error, TreeNode> appendRootNode() {
+        TreeNodeChildren newRootChildren = new DefaultTreeNodeChildren(NIL_LIST, new TreeMap<>());
+        Either<jp.ac.u_ryukyu.ie.cr.jungle.util.Error, TreeNode> either = newRootChildren.addNewChildAt(0,this);
+        return either;
+    }
+
+    @Override
+    public int compareTo(TreeNode o) {
+        return this.hashCode() - o.hashCode();
+    }
+}