- Pharo-users - lists.pharo.org

NBFFI version of the OpenDBXDriver

by Rocio Amaya

* Hi! I'd like to show a bit the outcome of the first iteration of the DBXTalk Gsoc of this year. First, I've been adapting myself to the environment and technology (DBXTalk, OpenDBX, TalkFFI), and I've written some little tutorials of what I've learnt about them: - Post of how to install OpenDBX http://rochiamaya.wordpress.com/2013/07/28/how-to-install-version-1-4-6-of-… - Post of how to install and use TalkFFI to generate mappings http://rochiamaya.wordpress.com/2013/07/30/create-bindings-with-talkffi/ - Post of how to use mappings generated by TalkFFI http://rochiamaya.wordpress.com/2013/08/06/how-to-use-the-generated-binding… Also, as concrete code, we have built a NBFFI version of the OpenDBXDriver. The main idea of this is to provide a backward compatibility layer to people that use OpenDBX, while letting us move forward dropping the old FFI implementation. Gofer it smalltalkhubUser: 'DBXTalk' project: 'Configurations'; configurationOf: 'OpenDBXDriver'; load. (((Smalltalk at: #ConfigurationOfOpenDBXDriver) perform: #project) perform: #version: with: â1.3â) load: 'DeveloperGroup'. However, the configuration still supports to load the former version of the driver (no NBFFI) Gofer it smalltalkhubUser: 'DBXTalk' project: 'Configurations'; configurationOf: 'OpenDBXDriver'; load. (((Smalltalk at: #ConfigurationOfOpenDBXDriver) perform: #project) perform: #version: with: â1.3â) load: 'FFIDriver'. And the configuration with only NBFFI version. Gofer it smalltalkhubUser: 'DBXTalk' project: 'Configurations'; configurationOf: 'OpenDBXDriver'; load. (((Smalltalk at: #ConfigurationOfOpenDBXDriver) perform: #project) perform: #version: with: â1.3â) load: 'NBFFIDriver'. To use, writte in the Workspace and DoIt: âto set the NBFFI bindâ LibOpenDBXMap initialize. OpenDBX current: NBPharoOpenDBX new. âor to set the oldFFI bindâ OpenDBX current: FFIOpenDBX ffiImplementationForOS . In our current/next steps, we are starting to dig into the other driver implementations. I'm currently working in a Mysql driver implementation that will use the C mysql library directly without the intermediation of OpenDBX. That way, the setup of the environment will be far easier and the entry barrier will be lowered. Best Regards! Rocio *

Sept. 12, 2013

Re: [Pharo-users] [Pharo-dev] Pharo Sprint in Buenos Aires - this saturday!

by Guillermo Polito

On Wed, Sep 11, 2013 at 3:50 PM, Gisela Decuzzi <giseladecuzzi(a)gmail.com>wrote: > Pharo Sprint in Buenos Aires! > When: sept 14 (This saturday!) We start at 10 and estimated finish at > 17:00. You can join in any moment! > Where: 10Pines <http://www.10pines.com/> (Av Leandro N. Alem 693 5Â°B) > We will fix bugs and we are talking about improving usability (specially > in Linux!) > Actually that's a nice topic to focus the sprint on :) > > > > 2013/9/6 Gisela Decuzzi <giseladecuzzi(a)gmail.com> > >> Excelent, now we have to think in wich issues resolve and who will >> provide the food/drink ;) >> >> >> >> 2013/9/6 Camillo Bruni <camillobruni(a)gmail.com> >> >>> Sounds great to me, >>> >>> So to clear: >>> Title: Pharo Spring >>> Date: 2013-09-14 (Saturday, Hours to be discussed) >>> Location: 10pines >>> >>> thanks for helping out :) >>> >>> On 2013-09-06, at 12:18, Nicolas Passerini <npasserini(a)gmail.com> wrote: >>> > I think it would be great to use 10Pines office if it is available. >>> > >>> > >>> > On Fri, Sep 6, 2013 at 12:15 PM, Gisela Decuzzi < >>> giseladecuzzi(a)gmail.com>wrote: >>> > >>> >> Hello! If we are having hosting problems during the weekend with the >>> >> sprint we can use 10Pines (http://www.10pines.com/) office.In fact >>> in ten >>> >> pines we will be very happy to offer our place for this kind of >>> events. >>> >> During the week is more complex to find room, but we are not used to >>> work >>> >> during weekends ;) >>> >> >>> >> So, the office is near Retiro (Av. Leandro N. Alem y Viamonte) we have >>> >> internet access and if it's sunny we can use the roof. >>> >> We should set a date to confirm the availability (again if it's >>> weekend, >>> >> is available otherwise we should check). >>> >> >>> >> >>> >> >>> >> >>> >> >>> >> 2013/9/4 Camillo Bruni <camillobruni(a)gmail.com> >>> >> >>> >>> From the doodle we're around 7, so I'd count with something like 10 >>> >>> people? >>> >>> And yes, I think internet connection is a requirement, at least for >>> >>> updating the issue tracker. >>> >>> >>> >>> On 2013-09-04, at 10:32, Nicolas Passerini <npasserini(a)gmail.com> >>> wrote: >>> >>> >>> >>>> I think UTN is not a good idea for a Pharo sprint, because we will >>> need >>> >>> a >>> >>>> good Internet connection and that can not be guaranteed here. >>> >>>> (Or correct me and tell me that Internet connection is not a must, >>> so we >>> >>>> can meet here at UTN without problems). >>> >>>> >>> >>>> How much people is coming to the Sprint? >>> >>>> >>> >>>> >>> >>>> On Wed, Sep 4, 2013 at 10:12 AM, Sebastian Tleye <stleye(a)gmail.com> >>> >>> wrote: >>> >>>> >>> >>>>> The Pabellon 1 is closed on saturdays afternoon, but have you >>> asked for >>> >>>>> Pabellon 2? I think it's open on saturdays (i don't know if it is >>> >>> possible >>> >>>>> to book a room) >>> >>>>> >>> >>>>> >>> >>>>> 2013/9/4 Guillermo Polito <guillermopolito(a)gmail.com> >>> >>>>> >>> >>>>>> Probably UTN? >>> >>>>>> >>> >>>>>> >>> >>>>>> On Wed, Sep 4, 2013 at 2:45 PM, Camillo Bruni < >>> camillobruni(a)gmail.com >>> >>>> wrote: >>> >>>>>> >>> >>>>>>> So it looks like we are going to do the Pharo sprint in Buenos >>> Aires >>> >>>>>>> Saturday, the 14th of September. >>> >>>>>>> The question is now where do we meet? >>> >>>>>>> The original idea was to reserver a room at the UBA, but that is >>> not >>> >>>>>>> possible the weekend. >>> >>>>>>> Any suggestions? >>> >>>>>>> >>> >>>>>>> On 2013-09-03, at 09:05, Mariano Martinez Peck < >>> >>> marianopeck(a)gmail.com> >>> >>>>>>> wrote: >>> >>>>>>> >>> >>>>>>>> Cool. I'll be there, of course! >>> >>>>>>>> Keep us informed. >>> >>>>>>>> Cheers, >>> >>>>>>>> >>> >>>>>>>> >>> >>>>>>>> On Mon, Sep 2, 2013 at 10:42 PM, Camillo Bruni < >>> >>> camillobruni(a)gmail.com >>> >>>>>>>> wrote: >>> >>>>>>>> >>> >>>>>>>>> everything is open so far, guido had the idea of reserving a >>> room >>> >>> at >>> >>>>>>> the >>> >>>>>>>>> UBA, >>> >>>>>>>>> we will have more details tomorrow :) >>> >>>>>>>>> >>> >>>>>>>>> On 2013-09-02, at 21:24, Gisela Decuzzi < >>> giseladecuzzi(a)gmail.com> >>> >>>>>>> wrote: >>> >>>>>>>>>> Great! The idea is to spend the full day? Or do you have any >>> >>> planed >>> >>>>>>> time? >>> >>>>>>>>>> >>> >>>>>>>>>> >>> >>>>>>>>>> 2013/9/2 Camillo Bruni <camillobruni(a)gmail.com> >>> >>>>>>>>>> >>> >>>>>>>>>>> I spend a month in Buenos Aires working together with Guido >>> >>> Chari @ >>> >>>>>>> the >>> >>>>>>>>>>> UBA, >>> >>>>>>>>>>> we take this opportunity to organize a Pharo sprint outside >>> >>> France >>> >>>>>>> ;) >>> >>>>>>>>>>> >>> >>>>>>>>>>> We are in early preparation phase and the date nor location >>> isn't >>> >>>>>>> fixed >>> >>>>>>>>>>> yet, >>> >>>>>>>>>>> so if you are motivated to join, can mark possible dates on >>> this >>> >>>>>>> doodle: >>> >>>>>>>>>>> >>> >>>>>>>>>>> http://doodle.com/qey7iieqm5yr4wwy >>> >>>>>>>>>>> >>> >>>>>>>>>>> cheers, >>> >>>>>>>>>>> camillo >>> >>>>>>>>>>> >>> >>>>>>>>> >>> >>>>>>>>> >>> >>>>>>>> >>> >>>>>>>> >>> >>>>>>>> -- >>> >>>>>>>> Mariano >>> >>>>>>>> http://marianopeck.wordpress.com >>> >>>>>>> >>> >>>>>>> >>> >>>>>> >>> >>>>> >>> >>> >>> >>> >>> >> -- >>> >> You received this message because you are subscribed to the Google >>> Groups >>> >> "Taller de Lenguajes de ProgramaciÃ³n" group. >>> >> To unsubscribe from this group and stop receiving emails from it, >>> send an >>> >> email to tlp-utn-2012+unsubscribe(a)googlegroups.com. >>> >> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >>> >>> >> >

Sept. 11, 2013

Re: [Pharo-users] Benchmark

by Natalia Tymchuk

Hello Stephane. Yes, I'm interested in that and it will be an honor for me)). But I never wrote the books and my English is not at its best level. However I think that after a couple reviews my English will be better . Best regards, Natalia

Sept. 11, 2013

Labeling

by Natalia Tymchuk

Hello. I want to draw a bar diagram for my benchmarks in Graph-ET. Does anybody know how to add the labels to x-axis? Best regards, Natalia.

Sept. 11, 2013

Pharo Sprint in Buenos Aires - this saturday!

by Gisela Decuzzi

Pharo Sprint in Buenos Aires! When: sept 14 (This saturday!) We start at 10 and estimated finish at 17:00. You can join in any moment! Where: 10Pines <http://www.10pines.com/> (Av Leandro N. Alem 693 5Â°B) We will fix bugs and we are talking about improving usability (specially in Linux!) 2013/9/6 Gisela Decuzzi <giseladecuzzi(a)gmail.com> > Excelent, now we have to think in wich issues resolve and who will provide > the food/drink ;) > > > > 2013/9/6 Camillo Bruni <camillobruni(a)gmail.com> > >> Sounds great to me, >> >> So to clear: >> Title: Pharo Spring >> Date: 2013-09-14 (Saturday, Hours to be discussed) >> Location: 10pines >> >> thanks for helping out :) >> >> On 2013-09-06, at 12:18, Nicolas Passerini <npasserini(a)gmail.com> wrote: >> > I think it would be great to use 10Pines office if it is available. >> > >> > >> > On Fri, Sep 6, 2013 at 12:15 PM, Gisela Decuzzi < >> giseladecuzzi(a)gmail.com>wrote: >> > >> >> Hello! If we are having hosting problems during the weekend with the >> >> sprint we can use 10Pines (http://www.10pines.com/) office.In fact in >> ten >> >> pines we will be very happy to offer our place for this kind of events. >> >> During the week is more complex to find room, but we are not used to >> work >> >> during weekends ;) >> >> >> >> So, the office is near Retiro (Av. Leandro N. Alem y Viamonte) we have >> >> internet access and if it's sunny we can use the roof. >> >> We should set a date to confirm the availability (again if it's >> weekend, >> >> is available otherwise we should check). >> >> >> >> >> >> >> >> >> >> >> >> 2013/9/4 Camillo Bruni <camillobruni(a)gmail.com> >> >> >> >>> From the doodle we're around 7, so I'd count with something like 10 >> >>> people? >> >>> And yes, I think internet connection is a requirement, at least for >> >>> updating the issue tracker. >> >>> >> >>> On 2013-09-04, at 10:32, Nicolas Passerini <npasserini(a)gmail.com> >> wrote: >> >>> >> >>>> I think UTN is not a good idea for a Pharo sprint, because we will >> need >> >>> a >> >>>> good Internet connection and that can not be guaranteed here. >> >>>> (Or correct me and tell me that Internet connection is not a must, >> so we >> >>>> can meet here at UTN without problems). >> >>>> >> >>>> How much people is coming to the Sprint? >> >>>> >> >>>> >> >>>> On Wed, Sep 4, 2013 at 10:12 AM, Sebastian Tleye <stleye(a)gmail.com> >> >>> wrote: >> >>>> >> >>>>> The Pabellon 1 is closed on saturdays afternoon, but have you asked >> for >> >>>>> Pabellon 2? I think it's open on saturdays (i don't know if it is >> >>> possible >> >>>>> to book a room) >> >>>>> >> >>>>> >> >>>>> 2013/9/4 Guillermo Polito <guillermopolito(a)gmail.com> >> >>>>> >> >>>>>> Probably UTN? >> >>>>>> >> >>>>>> >> >>>>>> On Wed, Sep 4, 2013 at 2:45 PM, Camillo Bruni < >> camillobruni(a)gmail.com >> >>>> wrote: >> >>>>>> >> >>>>>>> So it looks like we are going to do the Pharo sprint in Buenos >> Aires >> >>>>>>> Saturday, the 14th of September. >> >>>>>>> The question is now where do we meet? >> >>>>>>> The original idea was to reserver a room at the UBA, but that is >> not >> >>>>>>> possible the weekend. >> >>>>>>> Any suggestions? >> >>>>>>> >> >>>>>>> On 2013-09-03, at 09:05, Mariano Martinez Peck < >> >>> marianopeck(a)gmail.com> >> >>>>>>> wrote: >> >>>>>>> >> >>>>>>>> Cool. I'll be there, of course! >> >>>>>>>> Keep us informed. >> >>>>>>>> Cheers, >> >>>>>>>> >> >>>>>>>> >> >>>>>>>> On Mon, Sep 2, 2013 at 10:42 PM, Camillo Bruni < >> >>> camillobruni(a)gmail.com >> >>>>>>>> wrote: >> >>>>>>>> >> >>>>>>>>> everything is open so far, guido had the idea of reserving a >> room >> >>> at >> >>>>>>> the >> >>>>>>>>> UBA, >> >>>>>>>>> we will have more details tomorrow :) >> >>>>>>>>> >> >>>>>>>>> On 2013-09-02, at 21:24, Gisela Decuzzi < >> giseladecuzzi(a)gmail.com> >> >>>>>>> wrote: >> >>>>>>>>>> Great! The idea is to spend the full day? Or do you have any >> >>> planed >> >>>>>>> time? >> >>>>>>>>>> >> >>>>>>>>>> >> >>>>>>>>>> 2013/9/2 Camillo Bruni <camillobruni(a)gmail.com> >> >>>>>>>>>> >> >>>>>>>>>>> I spend a month in Buenos Aires working together with Guido >> >>> Chari @ >> >>>>>>> the >> >>>>>>>>>>> UBA, >> >>>>>>>>>>> we take this opportunity to organize a Pharo sprint outside >> >>> France >> >>>>>>> ;) >> >>>>>>>>>>> >> >>>>>>>>>>> We are in early preparation phase and the date nor location >> isn't >> >>>>>>> fixed >> >>>>>>>>>>> yet, >> >>>>>>>>>>> so if you are motivated to join, can mark possible dates on >> this >> >>>>>>> doodle: >> >>>>>>>>>>> >> >>>>>>>>>>> http://doodle.com/qey7iieqm5yr4wwy >> >>>>>>>>>>> >> >>>>>>>>>>> cheers, >> >>>>>>>>>>> camillo >> >>>>>>>>>>> >> >>>>>>>>> >> >>>>>>>>> >> >>>>>>>> >> >>>>>>>> >> >>>>>>>> -- >> >>>>>>>> Mariano >> >>>>>>>> http://marianopeck.wordpress.com >> >>>>>>> >> >>>>>>> >> >>>>>> >> >>>>> >> >>> >> >>> >> >> -- >> >> You received this message because you are subscribed to the Google >> Groups >> >> "Taller de Lenguajes de ProgramaciÃ³n" group. >> >> To unsubscribe from this group and stop receiving emails from it, send >> an >> >> email to tlp-utn-2012+unsubscribe(a)googlegroups.com. >> >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> >> >

Sept. 11, 2013

Re: [Pharo-users] Group and member with Voyage

by Esteban A. Maringolo

That was the main error I had. Assuming the #isVoyageRoot was inheritable. After looking at #voyageCollectionName I understood all the problems I had. I learnt a lot about its internal during the process. Design question: Why #persistentClass answer false if a Class has no voyage root superclass? Shouldn't it raise an error or answer nil instead? Esteban A. Maringolo 2013/9/10 Esteban Lorenzano <estebanlm(a)gmail.com> > no, it should not be implemented, no need to make him answer false (in > fact, I never tried, but I'm pretty sure that is you reimplement > isVoyageRoot to answer false in the subclasses most probably you will get a > class that is transient :( ). > > reason is that voyage looks the root class of a hierarchy by noticing > where is #isVoyageRoot = true implemented. > > (again, each time I look in this "design decisions" I feel a bit > ashamed... but well, they looked good at the moment :) ) > > Esteban > > On Sep 10, 2013, at 5:06 PM, Esteban A. Maringolo <emaringolo(a)gmail.com> > wrote: > > Esteban, > > I didn't know about the #isVoyageRoot difference based on where was the > method defined. > > I mean... if I define > Member class>>#isVoyageRoot > ^true > > why sould SingleMember answer false? > > Do I have to redefine it to answer false in each of Member subclasses? > > Regards! > > > > > > Esteban A. Maringolo > > > 2013/9/10 Esteban Lorenzano <estebanlm(a)gmail.com> > >> Hi, >> >> what happens is that if you declare a "kind", you forces all elements to >> be of that specific class. >> Solution is just not add that property: >> >> <mongoDescription> >> ^VOMongoToManyDescription new >> attributeName: 'members'; >> accessor: #members; >> "kind: Member; " >> "<-- NO!" >> beLazy; >> yourself. >> >> And same happens in the <mongoContainer> description in the top of your >> hierarchy... you must NOT declare a kind. >> Also, if you want all members to go in just one collection. #isVoyageRoot >> has to be implemented in the top of the hierarchy and not in the subclasses >> >> Member >> "<-- #isVoyageRoot = true here!" >> SingleMember >> ComplexMember >> >> what happens then is that voyage will create a collection and for each >> document it stores in it will also store the attribute '#instanceOf', which >> will be used to retrieve the correct object. >> >> Esteban >> >> >> what happens then is that >> >> On Aug 31, 2013, at 12:53 AM, Esteban A. Maringolo <emaringolo(a)gmail.com> >> wrote: >> >> > More or less, I have this working. >> > >> > In the Group class I have a description named: >> > descriptionMembers >> > <mongoDescription> >> > ^VOMongoToManyDescription new >> > attributeName: 'members'; >> > accessor: #members; >> > kind: Member; >> > beLazy; >> > yourself >> > >> > >> > And in the Member class I have >> > descriptionGroups >> > <mongoDescription> >> > ^VOMongoToManyDescription new >> > attributeName: 'groups'; >> > accessor: #groups; >> > kind: Group; >> > beLazy; >> > yourself >> > >> > >> > >> > But what if Member is an abstract class and the elements can be any of >> > SingleMember or ComplexMember?, each one is stored in a separate >> > collection in Mongo. >> > >> > If I do specify #kind: Member in my #descriptionMembers it won't work. >> > >> > Any ideas? >> > >> > Regards, >> > >> > >> > Esteban A. Maringolo >> > >> > >> > 2013/8/30 Esteban A. Maringolo <emaringolo(a)gmail.com>: >> >> 2013/8/30 James Foster <Smalltalk(a)jgfoster.net>: >> >>> It seems that I mistook the question for something easy enough for me >> to answer! Unfortunately, I don't have any knowledge of Voyage+MongoDB so >> can't really give the proper answer. >> >> >> >> Thanks anyway, it is a problem you'll never find in GemStone/S ;-) >> > >> >> >> > >

Sept. 11, 2013

Re: [Pharo-users] Smalltalk positions in research in France

by Damien Cassou

On Tue, Sep 10, 2013 at 11:02 PM, Sebastian Tleye <stleye(a)gmail.com> wrote: > I talked to him today, he is also part of the team in Douai. No, Loic works in Brest, not Douai. But it is possible that the PhD he is proposing is the same as the one in Douai because they work together closely. Still, you could apply for an engineer position with him. -- Damien Cassou http://damiencassou.seasidehosting.st "Success is the ability to go from one failure to another without losing enthusiasm." Winston Churchill

Sept. 11, 2013

Re: [Pharo-users] How to use a MongoDB account with Voyage

by Esteban Lorenzano

Hi, sorry, that's not yet implemented :( but the infrastructure is already there, it is just missing the plugging stuff, check into MongoDatabase>>#username:password: so, ideally, you could have a method in VOMongoRepository who just translates the validation to the driver. Cheers, Esteban On Sep 10, 2013, at 9:46 AM, Olivier Auverlot <olivier.auverlot(a)gmail.com> wrote: > Hello, > > I need to use a login and password to connect my application to a Mongo DB database. The access to the database is restricted by an account. How to use a login and a password with Voyage ? > > Best regards > Olivier ;-)

Sept. 11, 2013

Re: [Pharo-users] Smalltalk positions in research in France

by Sebastian Tleye

Hi Damien, thank you :) I talked to him today, he is also part of the team in Douai. I have to wait now for an answer El 10/09/2013, a las 14:31, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> escribiÃ³: > Hi guys > > you can be interested by the following position. > > stef > >> From: LoÃ¯c LAGADEC <loic.lagadec(a)ensta-bretagne.fr> >> Subject: Profils de postes >> Date: September 9, 2013 5:28:59 PM GMT+02:00 >> To: stephane.ducasse(a)gmail.com, stephane.ducasse(a)inria.fr, loic.lagadec(a)ensta-brest.Fr >> >> Several smalltalk-centric positions open in Brest (http://www.brest-metropole-tourisme.fr/en/) We also welcome students internship on demand. >> >> The Phd, engineer and postdoc will be located in the ENSTA Bretagne engineering school (www.ensta-bretagne.eu) and be part of the UMR 6285 Lab-STICC lab. >> >> >> Contact : Loic.lagadec(a)ensta-bretagne.Fr >> >> >> - Engineer (1 year) : Start ASAP >> >> In the scope of the ANR (INS 2011) ARDYT project, we are hiring an engineer for 12 months. The objective of this work is to contribute to the refactoring and improve the (VW written) Biniou Framework (modelling Embedded reconfigurable devices to produce software development environments). Biniou is currently being extended with new features and requires to define a versioning and testing policy. >> >> - Phd : Start January 2014 >> >> >> In the scope of the FP7 ERATO project, the PhD student will contribute to set up a Professional environment to exploit a new European FPGA (reconfigurable device) dedicated to space application. >> >> One important contribution will be to expose a manipulation API to application Designers while protecting the hardware intellectual property. Also some compression schemes used for video coding will be stressed against practical experimentation when downsizing the bitstream (binary representation of the application). >> >> >> - postdoc (2 years) : Start january-june 2014 >> >> In the scope of the FP7 ERATO project, the candidate will contribute to define and develop a Pharo environment to model a new FPGA and to meter performances in a faulty environment (satellite). This postdoc is a perfect opportunity for a Smalltalk expert to transpose its skills to an applicative domain. Depending on the qualification of the candidate, she/he will be co advisor of the PhD student. >> >

Sept. 10, 2013

Re: [Pharo-users] Benchmark

by StÃ©phane Ducasse

Hello Natalia I started to write a chapter on Smark for a future Pharo book. So may be we could write it together :) I can give you access to it if you are interested Stef On Sep 10, 2013, at 1:15 AM, Natalia Moskovchuk <natalia.moskovchuk(a)unikernel.net> wrote: > Thank all of you for help. I have successfuly added benchmarks to my project. > And additionaly I wrote simple step by step tutorial about how to write > benchmarks in Pharo for people like me)). > Best regards, > Natalia > > > > -- > View this message in context: http://forum.world.st/Benchmark-tp4705781p4707388.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

Sept. 10, 2013