[elephant-cvs] CVS elephant

[ieslick]

Update of /project/elephant/cvsroot/elephant
In directory clnet:/tmp/cvs-serv20360

Modified Files:
	TODO 
Removed Files:
	ele-acache.asd 
Log Message:
Enable use of %bignum-ref under sbcl; update TODO list and roadmap

--- /project/elephant/cvsroot/elephant/TODO	2007/02/04 10:08:27	1.43
+++ /project/elephant/cvsroot/elephant/TODO	2007/02/05 00:32:27	1.44
@@ -1,5 +1,5 @@
 
-Last updated: January 20, 2007
+Last updated: February 4, 2007
 
 Ongoing release plan notes:
 
@@ -7,14 +7,15 @@
 --------------------------------------------
 
 Active tasks:
-- Resolve duplicate sorting guarantee in btree interface; currently supported 
-  by BDB but not SQL and it is not tested in the regression suite
+~ Resolve duplicate sorting guarantee in btree interface; currently supported 
+  by BDB but not SQL and it is not tested in the regression suite (Robert)
 - Trace all paths to db-put or db-delete and ensure that there is a check or a 
   default ensure-transaction around the primitive components - write a document 
   clarifying transaction design & assumptions in the backend]
 - Fix *dbconnection-spec* to support multiple controllers for multiple threads
   for CLSQL backend
 - Validate migration 0.6.0->0.6.1
+- Improve SQL serializer performance (Robert)
 
 BDB Features:
 - Determine how to detect deadlock conditions as an optional run-safe mode?
@@ -141,13 +142,13 @@
 - Add dependency information into secondary index callback functions so that
   we can more easily compute which indices need to be updated to avoid the
   global remove/add in order to maintain consistency (Ian)
-- Improve SQL serializer performance (Robert/Ian)
 
 Design:
-  - Use SWIG and CFFI to better track changes in defconstant?
+  - Use SWIG and CFFI to better track changes in defconstant? (too expensive to be useful)
   - Evaluate porting elephant to closer-to-MOP to make it easier to
     support additional lisps and to seriously clean up
-    metaclasses.lisp and classes.lisp protocols
+    metaclasses.lisp and classes.lisp protocols (no love on first attempt)
+  (log these in Track)
 
 Features:
   - Persistent variables (abstraction that allows compound lisp objects at the cost of
@@ -166,12 +167,10 @@
     - A guide to performance
     - An overview of licensing issues...
 
-0.7.0: Fast In-Memory Database (Not backwards compatible)
---------------------------------------------------
+0.7.0: Native Lisp Backend (beta), Fast In-Memory Operations
+------------------------------------------------------------
   - Full support for DCM or integration of DCM functionality
   - Integrate prevalence-like in-memory database system for single image, multiple-thread operation
-  - Fast serializer port w/ upgrade strategy and prevalence like storage solution
-    - Further improve SQL 64-bit serialization performance (if possible)
   - (From Ben's e-mail) We are storing persistent objects incorrectly. They should be
     stored only as OIDs, and we should have a separate OID->class table.  This way 
     change-class can be handled correctly.  This also non-trivially compresses storage 
@@ -194,25 +193,22 @@
 --------------------------------------------------
   - More work on testing, examples and documentation
   - Intent is for this to be a major, long-term supported release prior 
-    to work on the new backend
+    to work on the new backend (i.e. patches against this release for
+    bugs rather than only available in latest development tree)
 
-0.8.0 - Native Backend 
+0.8.0 - Supporting Tools Release
 --------------------------------------------------
-  - A native lisp backend controller (Ian)
-  - Native persistent hashes (easy for BDB; can do on SQL backends?)
+  - Add special support (if any) for persistent graph structures & queries 
+    (ala AllegroCache)
   - Support for cheap persistent sets (medium? can do on SQL?)
-
-0.9.0 - Supporting Tools Release
---------------------------------------------------
+  - Native persistent hashes (easy for BDB; can do on SQL backends?)
   - Support a simple object query language over the database
-  - Add special support (if any) for persistent graph structures & queries (ala AllegroCache)
   - Repository browser - a simple REPL tool like the Slime inspector 
     to see what classes are in a repository and what state they're in...useful 
     for long-lived repositories or if you've forgotten a variable name
 
-1.0 - Production release (1st fully supported version since 0.7.1)
---------------------------------------------------
-  - Finalize supported platforms (LispWorks?  OpenMCL?)
+1.0 - Final Production release (1st long-term version since 0.7.1)
+------------------------------------------------------------------------
   - Significant work on test cases & testing framework
   - Final pass of performance enhancements
   - Invite community review and testing