--- a/design.txt	Thu Jan 27 06:31:58 2011 +0100
+++ b/design.txt	Thu Jan 27 21:15:21 2011 +0100
@@ -42,6 +42,7 @@
 DataAccess - collect debug info (buffer misses, file size/total read operations) to find out better strategy to buffer size detection. Compare performance.
 
 Strip off metadata from beg of the stream - DataAccess (with rebase/moveBaseOffset(int)) would be handy
+Parameterize StatusCollector to produce copy only when needed. And HgDataFile.metadata perhaps should be moved to cacheable place? 
 
 Status operation from GUI - guess, usually on a file/subfolder, hence API should allow for starting path (unlike cmdline, seems useless to implement include/exclide patterns - GUI users hardly enter them, ever)
   -> recently introduced FileWalker may perhaps help solving this (if starts walking from selected folder) for status op against WorkingDir?
@@ -56,7 +57,9 @@
 ? hg status, compare revision and local file with kw expansion and eol extension
 ? subrepos in log, status (-S) and manifest commands
 
+
 Commands to get CommandContext where they may share various caches (e.g. StatusCollector)
+Perhaps, abstract classes for all Inspectors (i.e. StatusCollector.Inspector) for users to use as base classes to protect from change?
 
 >>>> Effective file read/data access
 ReadOperation, Revlog does: repo.getFileSystem().run(this.file, new ReadOperation(), long start=0, long end = -1)