NAME

ObjStore - Perl Extension For ObjectStore OODBMS

SYNOPSIS

Enjoy perl? Sick of SQL? Ready to try something new?

DESCRIPTION

ObjectStore is the market leader in object-oriented databases http://www.odi.com (NASDAQ: ODIS). They use a unique Cache-Forward Architecture to make persistent data available in literally the most efficient manner possible.

Prior to this joining of forces: ObjectStore was too radical a design decision for many applications; and perl5 did not have a simple way of storing complex data persistently. Now there is an easy way to build database applications, especially if you are concerned about preserving your ideals of encapsulation.

INCLUDED TOOLS

• ospeek

  Prints out databases in Data::Dumper style.

• posh

  Like sh/csh, except that you can change directory into your database and walk around the data from the inside. You can also invoke methods on your objects or write custom reports (in perl, of course :-).

• osperlserver

  Provides remote method invokation, database job scheduling, and server-object collaboration services. Completely generic.

PREREQUISITES

You will need:

- ObjectStore OODBMS (see http://www.odi.com; evaluations are available!)

- Perl 5.004_04 (or perl 5.005, once released)

- Tree::Fat & Test perl extensions

- 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/ !

################## # RECENT CHAN@ES # ##################

** 04-06-98 RELEASE 1.35

- Another read-only mode is available for ObjStore::Index. A distinction is made between exclusive and shared read-only keys. The default mode has been changed to _exclusive_ read-only. Also added support for shift and pop.

- Delay object destruction with ObjStore::Mortician. Also, general improvements to the serverization modules.

- Optimized typemap slightly. Also fixed typemap bugs in ObjStore::Index::seek & ObjStore::Index::configure. Optimized reallocation of (persistent) memory in string assignments. (1.34 code was buggy.)

- Overloaded == & != operator tests no longer work if either argument is non-persistent. While this breaks backward compatiblility, I believe the extra strictness is worth it.

- The automatic safe_require code was apparently a bit _TOO_ safe. Exceptions were been hidden! Fixed.

- Improved Digital AXP hints.

** 03-28-98 RELEASE 1.33

- Stringification of persistent objects can no longer cause ObjectStore exceptions. Error reporting is therefore much more robust.

- Use ObjStore::NoInit to delay initialization of the ObjectStore library. This opens time to modify configuration parameters (or for forking) before becoming a known OS client.

- First-cut at database job scheduling. See ObjStore::Job!

- Blessings were not sticking to databases in certain cases. Fixed.

see ./INSTALL for hints on installation see ./UPGRADE to evolve databases from prior releases see ./TODO for a list of stuff in the queue see ./CHANGES for a visionary perspective

Perl-ObjectStore mailing list:

majordomo@parallax.co.uk "subscribe perl-objectstore you@your.company.com"

(If you think you've run into a bug, try running your script with "perl -MObjStore=PANIC" and mail the output to the mailing list.)

------------------------------------------------------------------------- Copyright © 1997-1998 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)

cpanm ObjStore

perl -MCPAN -e shell
install ObjStore