=head1 NAME ObjStore - Perl Extension For C OODBMS =head1 SYNOPSIS Like perl? Sick of SQL? Ready to try something new? This extension implements databases that look exactly like normal perl. The same can also be extended with arbitrary C++ objects (!). =head1 PREREQUISITES - ObjectStore 5.1 (see http://www.odi.com; evaluations are available!) - Perl 5.005_03 or 5.005_5x - ExtUtils::ExCxx (only needed on Digital UNIX, HP (5.x), OS/2 (3.x), or MS Windows NT/95; send email) See http://www.perl.com/CPAN/authors/id/JPRIT/ ! =head1 IS THIS FOR GENERIC C++ OBJECTSTORE OR ONLY PERL? On Mon, 21 Sep 1998 tp@mccall.com wrote: > I was sort of hoping I'd be able to use perl to write quick-and-dirty data > manipulation scripts to mess around with my databases that are used by my > C++ applications. I don't know if I'd ever need that, but it sounded like > a useful thing to have in the toolbox, so to speak. My experience with ObjectStore is that it is very low-level. This is an advantage for applications that require the highest level of performance. However, there is nothing that I do with databases that needs such extreme degrees of optimization. Rather, I value ease of use and ease of change slightly above raw performance. When I designed the perl interface, I was always trying to optimize for these priorities. For example, I decided to start with a common, generic schema. This gained some big advantages: All perl databases are compatible. All perl databases will never I schema evolution. All perl databases can be edited with a standard perl shell. Even so, ObjectStore's recent support of DLL schemas allows the seemless integration of application specific C++ objects. For example, a code generator is available (L) that creates optimized records (ordered, typed tuple of fields -- like a C structure declaration). Recently, I also got PDL properly integrated (L). PDL is a perl extension for matrix mathematics. I believe the uncommon ability to integrate with everything at the lowest level (C) while still remaining maximally generic and easy to query is unique among database architectures. =head1 R!CENT CHANGES ** 01-12-99 RELEASE 1.52 - Split FatTree representation into a separate tarball. - Added ObjStore::REP::Splash::ObjAV, an array that stores only pointers to composites. - Fixed growth heuristics for Splash representations. - More correct integration between C code & perl for APIs with a variable number of arguments. - Partially factored tests into ObjStore::Test. - Updates for Event 0.29. - Delete some already deprecated code. ** 11-23-98 RELEASE 1.51 - Added more assertions to the API. A new (transient) memory leak debugging mode is available. See ObjStore::MakeMaker. - os_smart_object tweaks for ObjStore-Lib-PDL. - Fixed a bug that caused the save-stack to become corrupted during exceptions. Yikes! - Fixed transient memory leak trigger when an SV holding a persistent object has non-transaction scope. - Minor fixes to qtposh. see ./INSTALL for hints on installation see ./UPGRADE if you are starting from a prior releases see ./TODO for a list of stuff in the tuit queue see ./CHANGES for a visionary perspective Send any questions or comments to perl-objectstore@parallax.co.uk. If you'd like to subscribe to the mailing list, send email to majordomo@parallax.co.uk. Thanks! ------------------------------------------------------------------------- Copyright © 1997-1999 Joshua Nathaniel Pritikin. All rights reserved. This package is free software and is provided "as is" without express or implied warranty. It may be used, redistributed and/or modified under the terms of the Perl Artistic License (see http://www.perl.com/perl/misc/Artistic.html)