Обсуждение: Smalltalk driver
A Smalltalk driver has been developed for PostgreSQL. It consists of
two libraries, the driver library is implemented in terms of PostgreSQL
interface concepts (message etc.), and the second library is a mapping
of the driver library to the ViaualWorks EXDI (think of JDBC) interface.
I've included a couple of example of the libraries being used below.
What steps need to be taken to get these Smalltalk libraries listed on
the PostgreSQL web site?
Thanks. Bruce Badger
-------------------------------------
Code examples
Using the driver layer ...
| parameterSet connection result |parameterSet := ConnectionParameterSet new.parameterSet host: '192.168.12.12';
port:5432; databaseName:
'test1'; userName: 'bbadger'.connection := PostgreSQLConnection using: parameterSet.connection executeQuery: 'create
tabletest04 (a int2, b int2)'.connection executeQuery: 'insert into test04 values (1, 1)'.connection executeQuery:
'insertinto test04 values (2, 1)'.connection executeQuery: 'insert into test04 values (3, 1)'.result := connection
executeQuery:'select a, b from test04'.connection executeQuery: 'drop table test04'.connection close.^result
Using the EXDI layer ...
| connection session |connection := PostgreSQLEXDIConnection new.connection username: 'bbadger'; environment:
'192.168.12.12_test1'.connectionconnect.session := connection getSession.session prepare: 'INSERT INTO exdiTest06
(name,phone) VALUES(?, ?)'.#(#('Curly' 'x47') #('Moe' 'x29') #('Larry' 'x83')) do: [:entry |
session bindInput: entry; execute; answer].connection disconnect.^self
> A Smalltalk driver has been developed for PostgreSQL.
Great!
> What steps need to be taken to get these Smalltalk libraries listed on
> the PostgreSQL web site?
The main Postgres distribution ships several drivers. Would this be a
candidate for inclusion? I'm not sure how it builds or what it would
take, but if it could be done, and if there is a Smalltalk environment
available for, say, our Linux RPM builder guy, then we could include the
driver in the RPM distro.
In any case, to cross-reference your existing driver from the main
Postgres web site, we just need the details: URL reference, developer's
name, etc etc or perhaps you could include all that in a short intro
which we might be able to use verbatim.
- Thomas
On Mon, 10 Jul 2000, Thomas Lockhart wrote: > > A Smalltalk driver has been developed for PostgreSQL. > > Great! > > > What steps need to be taken to get these Smalltalk libraries listed on > > the PostgreSQL web site? Where is the driver now? Vince. -- ========================================================================== Vince Vielhaber -- KA8CSH email: vev@michvhf.com http://www.pop4.net128K ISDN from $22.00/mo - 56K Dialup from $16.00/moat Pop4 Networking Online Campground Directory http://www.camping-usa.com Online Giftshop Superstore http://www.cloudninegifts.com ==========================================================================
On Mon, 10 Jul 2000, bruce_badger wrote: > The libraries are currently slated to be released under the LGPL. I > understand that PostgreSQL is under a BSD license, so would the use of > LGPL for the Smalltalk stuff be a problem? > > The libraries take the form of "parcels". These are files which can be > loaded into either development or run-time VisualWorks "images" (running > Smalltalk environments. Once in an image, the classes in the library are > available for use, typically by application classes. A non-commercial > version of visualworks can be downloaded from here: > http://www.cincom.com/smalltalk/vwdownload.asp. Can you give me a quick 2-3 line description? Vince. -- ========================================================================== Vince Vielhaber -- KA8CSH email: vev@michvhf.com http://www.pop4.net128K ISDN from $22.00/mo - 56K Dialup from $16.00/moat Pop4 Networking Online Campground Directory http://www.camping-usa.com Online Giftshop Superstore http://www.cloudninegifts.com ==========================================================================
As of today, the library is on my machine, and the machines of two reviewers in the Smalltalk community (perhaps more if they've handed it on). I'm on the verge of letting comp.lang.smalltalk know about the driver, so that should increase the number of copies out there quite a bit :-) I'll send you a copy, if you wish. You'll need to install VisualWorks 5i.1 NC to use it. All the best,Bruce On Mon, 10 Jul 2000, Vince Vielhaber wrote: > On Mon, 10 Jul 2000, Thomas Lockhart wrote: > > > > A Smalltalk driver has been developed for PostgreSQL. > > > > Great! > > > > > What steps need to be taken to get these Smalltalk libraries listed on > > > the PostgreSQL web site? > > Where is the driver now? > > Vince. > -- > ========================================================================== > Vince Vielhaber -- KA8CSH email: vev@michvhf.com http://www.pop4.net > 128K ISDN from $22.00/mo - 56K Dialup from $16.00/mo at Pop4 Networking > Online Campground Directory http://www.camping-usa.com > Online Giftshop Superstore http://www.cloudninegifts.com > ========================================================================== > > > >
A 2-3 line description: The VisualWorks EXDI is a core API of the VisualWorks Smalltalk development environment. It provides a standard set of interfaces to SQL-compliant databases. The PosgreSQL Smalltalk driver + EXDI interface libarries provide an EXDI implementation for VisualWorks programmers wishing to access PostgreSQL databases. Is this the kind of thing you had in mind?
On Mon, 10 Jul 2000, bruce_badger wrote: > A 2-3 line description: > > The VisualWorks EXDI is a core API of the VisualWorks Smalltalk > development environment. It provides a standard set of interfaces to > SQL-compliant databases. The PosgreSQL Smalltalk driver + EXDI interface > libarries provide an EXDI implementation for VisualWorks programmers > wishing to access PostgreSQL databases. > > Is this the kind of thing you had in mind? Perfect. Vince. -- ========================================================================== Vince Vielhaber -- KA8CSH email: vev@michvhf.com http://www.pop4.net128K ISDN from $22.00/mo - 56K Dialup from $16.00/moat Pop4 Networking Online Campground Directory http://www.camping-usa.com Online Giftshop Superstore http://www.cloudninegifts.com ==========================================================================
what license does this fall under? if BSD, is this something that would make sense in including in our interfaces directory of our distribution? On Mon, 10 Jul 2000, bruce_badger wrote: > As of today, the library is on my machine, and the machines of two > reviewers in the Smalltalk community (perhaps more if they've handed it > on). > > I'm on the verge of letting comp.lang.smalltalk know about the driver, so > that should increase the number of copies out there quite a bit :-) > > I'll send you a copy, if you wish. You'll need to install VisualWorks > 5i.1 NC to use it. > > All the best, > Bruce > > On Mon, 10 Jul 2000, Vince Vielhaber wrote: > > > On Mon, 10 Jul 2000, Thomas Lockhart wrote: > > > > > > A Smalltalk driver has been developed for PostgreSQL. > > > > > > Great! > > > > > > > What steps need to be taken to get these Smalltalk libraries listed on > > > > the PostgreSQL web site? > > > > Where is the driver now? > > > > Vince. > > -- > > ========================================================================== > > Vince Vielhaber -- KA8CSH email: vev@michvhf.com http://www.pop4.net > > 128K ISDN from $22.00/mo - 56K Dialup from $16.00/mo at Pop4 Networking > > Online Campground Directory http://www.camping-usa.com > > Online Giftshop Superstore http://www.cloudninegifts.com > > ========================================================================== > > > > > > > > > Marc G. Fournier ICQ#7615664 IRC Nick: Scrappy Systems Administrator @ hub.org primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org
At the momemt we're thinking of the LGPL - would this be a problem? On Mon, 10 Jul 2000, The Hermit Hacker wrote: > > what license does this fall under? if BSD, is this something that would > make sense in including in our interfaces directory of our distribution? > > > > On Mon, 10 Jul 2000, bruce_badger wrote: > > > As of today, the library is on my machine, and the machines of two > > reviewers in the Smalltalk community (perhaps more if they've handed it > > on). > > > > I'm on the verge of letting comp.lang.smalltalk know about the driver, so > > that should increase the number of copies out there quite a bit :-) > > > > I'll send you a copy, if you wish. You'll need to install VisualWorks > > 5i.1 NC to use it. > > > > All the best, > > Bruce > > > > On Mon, 10 Jul 2000, Vince Vielhaber wrote: > > > > > On Mon, 10 Jul 2000, Thomas Lockhart wrote: > > > > > > > > A Smalltalk driver has been developed for PostgreSQL. > > > > > > > > Great! > > > > > > > > > What steps need to be taken to get these Smalltalk libraries listed on > > > > > the PostgreSQL web site? > > > > > > Where is the driver now? > > > > > > Vince. > > > -- > > > ========================================================================== > > > Vince Vielhaber -- KA8CSH email: vev@michvhf.com http://www.pop4.net > > > 128K ISDN from $22.00/mo - 56K Dialup from $16.00/mo at Pop4 Networking > > > Online Campground Directory http://www.camping-usa.com > > > Online Giftshop Superstore http://www.cloudninegifts.com > > > ========================================================================== > > > > > > > > > > > > > > > > Marc G. Fournier ICQ#7615664 IRC Nick: Scrappy > Systems Administrator @ hub.org > primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org > >
The libraries are currently slated to be released under the LGPL. I understand that PostgreSQL is under a BSD license, so would the use of LGPL for the Smalltalk stuff be a problem? The libraries take the form of "parcels". These are files which can be loaded into either development or run-time VisualWorks "images" (running Smalltalk environments. Once in an image, the classes in the library are available for use, typically by application classes. A non-commercial version of visualworks can be downloaded from here: http://www.cincom.com/smalltalk/vwdownload.asp. The same parcels can be used regardles of where the image is being run - currently the non-commercial version of VisualWorks runs on Windoze and Linux (commercial versions also run on Solaris, HPUX, Mac etc..). Currently, I have the parcels in tar file, and you are most welcome to the current version. "Installing" the libraries simply means putting them on the target machine such that they can be loaded (read) by a running VisualWorks image. Once loaded the libraries will be rready for use - there are test methods that can be run to check that everything works. The project page is here: http://wiki.cs.uiuc.edu/VisualWorks/PostgreSQL+EXDI What next? All the best,Bruce On Mon, 10 Jul 2000, Thomas Lockhart wrote: > > A Smalltalk driver has been developed for PostgreSQL. > > Great! > > > What steps need to be taken to get these Smalltalk libraries listed on > > the PostgreSQL web site? > > The main Postgres distribution ships several drivers. Would this be a > candidate for inclusion? I'm not sure how it builds or what it would > take, but if it could be done, and if there is a Smalltalk environment > available for, say, our Linux RPM builder guy, then we could include the > driver in the RPM distro. > > In any case, to cross-reference your existing driver from the main > Postgres web site, we just need the details: URL reference, developer's > name, etc etc or perhaps you could include all that in a short intro > which we might be able to use verbatim. > > - Thomas >