Hi, a paper describing what a student and I did is in http://www.cin.ufpe.br/~alms/ps/persiste.ps.gz . The idea was to have a class supporting the persistence operations (more in the style of serialization) and to have specific data structures to allow a quicker retrieval of the data ("Persistence Containers"). This is similar to what we have in some Object Oriented Databases. For the low level implementation we used the work on Binary I/O work of Wallace/Runciman. But in order to get more portability we reimplemented parts of it using Strings/Chars for I/O, which ended up very inneficient in Haskell. Some things that might help are: - better binary I/O and/or to interface with some low level existing persistence mechanism. - I believe a kind of reflection mechanism would make things much easier and more efficient to implement. Although automatic derivation of the instances helps. There are some other references in the paper. cheers, Andre.
| -----Original Message----- | From: Vorin, Michael [mailto:michael.vorin@eds.com] | Sent: 07 December 2001 03:21 | To: haskell@haskell.org | Subject: Haskell Persistence | | | I am interested in pursuing practical development of | persistence in Haskell. To this end I have been looking for | code/systems which have been developed previously to build | upon - not wishing to reinvent the wheel. | | I have found some references in the literature but have been | enable to track down any "artefacts". | | I was hopping someone could help me. | | I have found: | (1) Efficient Persistent Haskell, Tony Davie, Kevin Hammond, | and Juan Quintela Division of Computer Science, University of | St Andrews, 1998 | | (2) Models for Persistence in Lazy Functional Programming | Systems, McNally, University of St Andrews, 1993. | | (3) A Functional Database (1989) (Correct) Phil Trinder | | (4) Two Models For Integrating Persistence and Lazy | Functional Languages | (1991) David J. McNally, Antony J.T. Davie | | (5) Realizing State-Based Database Concepts in a Non-Strict, | Statically Typed, Purely Functional Persistent Programming | Language Yoshihiko Ichikawa Department of Information | Sciences, Ochanomizu University | | | _______________________________________________ | Haskell mailing list | Haskell@haskell.org http://www.haskell.org/mailman/listinfo/haskell |