--- a/rep/handler/REPNode.java	Mon Nov 10 22:13:40 2008 +0900
+++ b/rep/handler/REPNode.java	Mon Nov 10 22:16:37 2008 +0900
@@ -7,10 +7,21 @@
 import rep.channel.REPSelectionKey;
 import rep.channel.REPSocketChannel;
 
+/**
+ * @author kono
+ *    Abstract class for all REP node
+ *    Sub classes:
+ *        FirstConnector     waiting first connection and determines its type.
+ *        Editor             editor direct connect or no connection (master/slave)
+ *        Forwarder          send command to the other session manager 
+ *                                 base class for other communication node
+ *        Dispatcher         Session Manager entry, dispatch commands to editors.
+ *        NullForwarder      REP node with no connection
+ */
 public abstract class REPNode {
 
-	public int eid; // globally unique
-	public int sid=-1; // globally unique
+	public int eid;        // globally unique (contains SessionManagerID)
+	public int sid=-1;     // globally unique
 	public String host;
 	public String file;
 	public REP mode;