Elephant

A Persistent Object Metaprotocol and Database for Common Lisp

Current Release: Elephant 0.9.1

The most recent official release can be retrieved via darcs:

darcs get --tag=ELEPHANT-0-9-1 http://www.common-lisp.net/project/elephant/darcs/elephant

Elephant 0.9.1 was released November 16th, 2007. It integrates Henrik Hejte's support for Postmodern. Using this backend as a repository on top of the free Postgres RDBMS is about three times faster than using the generic SQL backend on Postgres.

You can download the tarball of the previous release (without documentation) here: elephant-0.9.tar.gz

The install instructions are located in the all new online Elephant User Manual. You can also download a PDF version of the document.

Windows users can download pre-built Elephant DLL files. See the Windows-specific instructions for how to use pre-built DLLs.

Elephant 0.9 is also available from our CVS tree:

cvs -z3 -d :pserver:anonymous:anonymous@common-lisp.net:/project/elephant/cvsroot checkout
    -r HEAD elephant

but this is now superceded by 0.9.1, available through darcs.

Known issues

• OpenMCL 1.0 has 1 known failure; redefinition of classes does not always result in indices being properly updated. This is a known problem with the OpenMCL 1.0 MOP implementation. No workaround is currently known, but in practice you can evaluate the defclass form again and manually call (ccl:finalize-inheritance pclass) or change the indexing state manually using the API. This will probably not get fixed in this release.
• The :deadlock-detect option for the BDB data store is not working in Lispworks.

Latest and Greatest

Elephant is now being developed on the darcs version control system. Download the latest stable development version using the command: 'darcs get http://www.common-lisp.net/project/elephant/darcs/elephant'.

Users can contribute patches by mailing darcs patches to the elephant-devel@common-lisp.net mailing list.

Last Release

The last major release of Elephant was version 0.6.0 released on May 27th of 2006. This release added automatic slot indexing and modularized the backends along with numerous bug fixes and feature enhancements.

Download the tarball: elephant-0.6.0.tgz

Or you can checkout the tagged release tree from CVS:

cvs -z3 -d :pserver:anonymous:anonymous@common-lisp.net:/project/elephant/cvsroot checkout
    -r ELEPHANT-0-6-0 elephant

Historical releases

Prior releases are provided for reference:

elephant-0.5.0.tgz
elephant-0.4.0.tar.gz
elephant-0.3.0.tar.gz
elephant-0.2.1.tar.gz
elephant-0.2.tar.gz
elephant-0.1.tar.gz