August 2011 - Esug-list - lists.esug.org

Re: [Esug-list] Preparing my presentation of NativeBoost

by Юрий Мироненко

> i'd like to know what you would like to know about things you don't > know about NativeBoost :) Well, ok, first thing I always like to see is examples of usage, you know. I mean not "packages which uses my package". I mean something like "Imagine, you want...some situation described.... You can do it with NativeBoost this way: ....code example...".

Aug. 5, 2011

Preparing my presentation of NativeBoost

by Igor Stasenko

Hi, i'd like to know what you would like to know about things you don't know about NativeBoost :) because i don't know what would you like to know more: - more in-depth about an implementation details - more about examples and how to use it just thinking, what i should focus on. For those who never heard about this project before, here the link to project home page: http://code.google.com/p/nativeboost/ See you in Edinburg. -- Best regards, Igor Stasenko AKA sig.

Aug. 5, 2011

Re: [Esug-list] Writing an object graph into a no-sql database [WAS] Re: [Seaside] ESUG SummerTalk - Fuel, binary object serializer

by Davorin Rusevljan

On Fri, Aug 5, 2011 at 11:57 AM, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: > >> >> I am looking at using Riak ( http://wiki.basho.com/ ) with Pharo. When >> storing a “business object” you have two choices: >> >> - Store a binary BLOB representing your object graph. >> - Store the object graph as JSON data. >> >> The last option essentially means you must do something similar to OR >> mapping, so I would prefer the first option. With Riak, you will soon >> be able to store additional indexed properties, which you later will >> be able to query. So you store your whole business object as a BLOB, >> together with those properties you need to query. >> > > Hi guys. Sorry to come back with this old post, but now I am interested ;) > > Right now, I have a requirement where I need to write a graph into a file. I > am using Fuel for that. Each graph, has its own file. In the image side I > just store the filename, When I need to load it it reads such file and > materialize it with Fuel. I was thinking going a step forward and use a > key/value (a.k.a no-sql) database. > > With Fuel, I can take a graph, and serialize directly into a ByteArray, > hence I can take a graph to swap, I assign an ID, and and save it into the > database. In the image side, I keep that ID. Then, when needed, I search it > in the database and then after with that ByteArray found, I materialize it > with Fuel. > > So...first question is, do you think that could be faster/better than > directly writing into a file as I am doing now? > > Now, which are the available Pharo wrappers for no-sql databases that let me > do that? I would appreciate any link or documentation about them. What do > I need to use such databases from Pharo? FFI and a library installed in my > machine? are there binaries for Mac OS? I am not a big expert, but here is what I know. Firstly most NoSQL databases expose their interface through network, for instance CouchDB uses standard HTTP. So in order to spek to CouchDB you just need http client library, and optionally some helper around it, there are a few such packages on sqeaksource. I would not expect typical NoSQL database outperform your approach on single machine setup, since they have many overheads you do not have like network, json parsing, etc. Situation in which they would make sense is where you need to access your objects from more than one machine, need indexing on various fields in the stored objects, load balanced servers and mirroring. Davorin Rusevljan http://www.cloud208.com/

Aug. 5, 2011

Writing an object graph into a no-sql database [WAS] Re: [Seaside] ESUG SummerTalk - Fuel, binary object serializer

by Mariano Martinez Peck

> > I am looking at using Riak ( http://wiki.basho.com/ ) with Pharo. When > storing a “business object” you have two choices: > > - Store a binary BLOB representing your object graph. > - Store the object graph as JSON data. > > The last option essentially means you must do something similar to OR > mapping, so I would prefer the first option. With Riak, you will soon > be able to store additional indexed properties, which you later will > be able to query. So you store your whole business object as a BLOB, > together with those properties you need to query. > > Hi guys. Sorry to come back with this old post, but now I am interested ;) Right now, I have a requirement where I need to write a graph into a file. I am using Fuel for that. Each graph, has its own file. In the image side I just store the filename, When I need to load it it reads such file and materialize it with Fuel. I was thinking going a step forward and use a key/value (a.k.a no-sql) database. With Fuel, I can take a graph, and serialize directly into a ByteArray, hence I can take a graph to swap, I assign an ID, and and save it into the database. In the image side, I keep that ID. Then, when needed, I search it in the database and then after with that ByteArray found, I materialize it with Fuel. So...first question is, do you think that could be faster/better than directly writing into a file as I am doing now? Now, which are the available Pharo wrappers for no-sql databases that let me do that? I would appreciate any link or documentation about them. What do I need to use such databases from Pharo? FFI and a library installed in my machine? are there binaries for Mac OS? Thanks in advance, -- Mariano http://marianopeck.wordpress.com

Aug. 5, 2011

SMALLTALK OPPORTUNITY -

by Hayley Jenkins

Dear sir/madam, Please find below brief details of a new role (contract) which may be of interest to you or a colleague. If you are not interested but can recommend someone who we place in this role, we will offer you a referral fee. Position: Smalltalk developer (exp with C++) Term: 3 Months extendable Location: Luxembourg Rate: Attractive/negotiable My client is a leading banking institution and they are looking for a Smalltalk Developer with good knowledge of SQL. You will be asked to help develop the technical design, coding, unit testing for a number of projects within the bank. This will be a long term contract. A few further details on the role are below; * Advanced SmallTalk development skills. * Minimum 5 years experience in smalltalk development. * Experience in financial industry is required * If possible, ability to coach people * English is the working language * Motivation and ability to ramp up rapidly is key I am really keen on hearing your thoughts on this, even if the role is not of interest. I have heard that you guys are the best and I am working within a very niche market, and I am very keen to expand my knowledge!:) If there is anything you would like to ask me, I would be more than happy to answer any questions. I hope to hear from you soon! Kind regards, Hayley Jenkins | I.T. Skillfinder Resourcer 20 St Dunstan's Hill | London | EC3R 8HY DDI +44(0) 20 7256 3555 | Fax +44(0) 20 7256 3551 www.it-skillfinder.co.uk<http://www.it-skillfinder.co.uk/> [cid:image001.jpg@01CC52B7.46692350]<http://www.recruiter.co.uk/50-recruitment-firms-growing-up-fast/1003942.art…> [cid:image002.gif@01CC52B7.46692350] [cid:image003.gif@01CC52B7.46692350] [cid:image004.jpg@01CC52B7.46692350] P Please consider the environment before printing The information in this email is confidential and may be legally privileged for use by the addressee only. If you are not the intended recipient, you must not use, disclose, distribute, copy, print or rely on this message. Please notify the sender by return email and then delete the message from your computer. I.T. Skillfinder accepts no responsibility for changes made to this message after it was sent Although this email and any attachments are believed to be free of any virus, or any other defect which might affect any computer or IT system into which they are received and opened, it is the responsibility of the recipient to ensure that they are virus free and no responsibility is accepted by I.T. Skillfinder for any loss or damage arising in any way from receipt or use thereof. Any opinions or advice contained in this email are not necessarily those of I.T. Skillfinder Ltd. ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________

Aug. 4, 2011

ESUG 2011 Innovation Technology Awards: Reminder

by jdelgado

Hi, Again, a reminder: ESUG 2011 Innovation Technology Awards http://esug.org/Conferences/2011/InnovationTechnologyAwards New Deadline: August 15. Have you written innovative Smalltalk? The developers of any Smalltalk-based software can enter by submitting a 3-5min video of their software. Entrants demo their systems in a session at the end of Monday August 22nd 2011, after which the conference attendees vote. (A vote consists in providing a sorted list of 3 preferred pieces of software.) The top 3 teams with the most innovative software will receive, respectively, 500 Euros, 300 Euros and 200 Euros. The results are announced in the Awards ceremony that is held during the social event. Applicants should provide the following information on the conference registration server. Once you have registered your personal info, an "Awards" menu allows submitting your software. You can provide this information when you first register, or login again later and update your details. Info to provide: Name of the software Licence information (free, or shareware, or a commercial) Name of the Smalltalk dialect used Names, Affiliation and Country of developers URL for a video (3-5 min) showing a screencast / demo of the software URL for downloading the software or at least a runnable demo Deadline: August 15 Any Smalltalker can apply (students, companies, ...). The presented piece of code/software should be written in Smalltalk or directly support Smalltalk (e.g. Smalltalk VM). All Smalltalk dialects are accepted. The applicant should own the copyright/copyleft of presented code or at least be the official representative of the copyright/copyleft owner. The software should be available on-line for evaluation (time-limited evaluation version, demo version, free for non-commercial use ...). Bests Jordi -- View this message in context: http://forum.world.st/ESUG-2011-Innovation-Technology-Awards-Reminder-tp371… Sent from the ESUG mailing list archive at Nabble.com.

Aug. 3, 2011