--- a/src/org/tmatesoft/hg/core/SessionContext.java	Wed Jun 13 21:07:39 2012 +0200
+++ b/src/org/tmatesoft/hg/core/SessionContext.java	Mon Jun 18 16:54:00 2012 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011 TMate Software Ltd
+ * Copyright (c) 2011-2012 TMate Software Ltd
  *  
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -16,24 +16,33 @@
  */
 package org.tmatesoft.hg.core;
 
-import org.tmatesoft.hg.internal.Experimental;
 import org.tmatesoft.hg.util.LogFacility;
 
 /**
- * WORK IN PROGRESS
+ * Access to objects that might need to be shared between various distinct operations ran during the same working session 
+ * (i.e. caches, log, etc.). It's unspecified whether session context is per repository or can span multiple repositories
  * 
- * Access to objects that might need to be shared between various distinct operations ran during the same working session 
- * (i.e. caches, log, etc.). It's unspecified whether session context is per repository or can span multiple repositories 
+ * <p>Note, API is likely to be extended in future versions, adding more object to share. 
  * 
  * @author Artem Tikhomirov
  * @author TMate Software Ltd.
  */
-@Experimental(reason="Work in progress")
-public interface SessionContext {
-	LogFacility getLog();
+public abstract class SessionContext {
+	// abstract class to facilitate adding more functionality without API break
 	
 	/**
-	 * LIKELY TO CHANGE TO STANDALONE CONFIGURATION OBJECT
+	 * Access wrapper for a system log facility.
+	 * @return facility to direct dumps to, never <code>null</code>
 	 */
-	Object getProperty(String name, Object defaultValue);
+	public abstract LogFacility getLog();
+	
+	/**
+	 * Access configuration parameters of the session.
+	 * @param name name of the session configuration parameter
+	 * @param defaultValue value to return if parameter is not configured
+	 * @return value of the session parameter, defaultValue if none found
+	 */
+	public abstract Object getConfigurationProperty(String name, Object defaultValue);
+	// perhaps, later may add Configuration object, with PropertyMarshal's helpers
+	// e.g. when there's standalone Caches and WritableSessionProperties objects
 }