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Nagare is designed to be simple and scalable. Contrary to other logging frameworks which provide rich set of log output methods (file, socket, DB, etc.), Nagare just connects to fluentd (http://fluentd.org). And Fluentd does the various log processing jobs.
The core default sort algorithm in VisualWorks is hybridization of quicksort and a insertion sort. The implications for this, is that this somewhat expensive toolListDisplayString method may be called repeatedly for some objects. That means redundant CPU cycles. A common solution to this kind of problem is memoization. Memoization basically is a fancy word which means "cache the results of your computation function, so you only evaluate the function once for each unique input and just look up the cached result for subsequent calls."
Today's Smalltalk 4 You looks at some of the startup options for VisualWorks (most of which also apply to ObjectStudio now). If you have trouble viewing it here in the browser, you can also navigate directly to YouTube. To watch now, click on the image below:
If you have trouble viewing that directly, you can click here to download the video directly. If you need the video in a Windows Media format, then download that here.
Today's Javascript 4 You looks at the how to select the first of a set of matching elements in JQuery. If you have trouble viewing it here in the browser, you can also navigate directly to YouTube.
Join the Facebook Group to discuss the tutorials. You can view the archives here.
To watch now, click on the image below:
If you have trouble viewing that directly, you can click here to download the video directly. If you need the video in a Windows Media format, then download that here.
Today's Smalltalk 4 You looks at the ENVY config map browser - what each part shows, and how you would use the various aspects. If you have trouble viewing it here in the browser, you can also navigate directly to YouTube. To watch now, click on the image below:
If you have trouble viewing that directly, you can click here to download the video directly. If you need the video in a Windows Media format, then download that here.
You can also watch it on YouTube:
Today we'll take a brief tour of the Configuration Map browser in VA Smalltalk. For any VA project, it's a tool you'll get very familiar with; it's where you set up all of the loading information for your project. Take a look at the screen capture below:
The list on the left is all of the defined maps in the library. Since your image must be connected to a library to work, this list will grow over time. There are two panes to the right, labeled "Editions and Versions", and "Applications". Any map has a number of versions (anything not versioned will be an open edition - we'll discuss those soon). The list of Applications tells us which Applications make up the config map, and what the load order for them is.
The lower left pane, "Config Expressions" requires some explanation. Generally, you leave this blank, or put in the simple statement "true". However, any Smalltalk expression that answers a boolean could go here. Say you wanted to define a Config Map that should only load on Unix/Linux systems; you might want something like this:
The next pane to the right contains a listing (in order) of any pre-requisite maps - those that need to load before your map can be loaded. One of the nicer things about Envy is that you can edit all of this information without actually loading the map; if you make a mistake that prevents the map from loading, you can some back here and address it.
The last pane on the bottom is for comments - it's often used for license information, or copyright notices. It's free form, and can contain any information you feel is relevant.
Need more help? There's a screencast for other topics like this which you may want to watch. Questions? Try the "Chat with James" Google gadget over in the sidebar.
Hi guys. It is going to be 4 years since I have started to develop with Squeak/Pharo. In the last months, talking with people or by reading the mailing list, I noticed that I may know some tricks and tips of Pharo that not everybody know. If you are an advanced Pharaoer, you probably won't learn anything new but, if you are a beginner or so, this post may help you.
Welcome to episode 78 of Independent Misinterpretations - a Smalltalk and dynamic language oriented podcast with James Robertson and David Buck.
This week we have part one of Sam Adam's keynote from STIC 2012 - if you prefer to watch the video, you should visit the STIC website. Part two will be posted next week. Sam's talk was on massive parallelism and objects - it was very well received at the conference.
You can subscribe to the podcast in iTunes (or any other podcatching software) using this feed directly or in iTunes with this one.
To listen now, you can either download the mp3 edition, or the AAC edition. The AAC edition comes with chapter markers. You can subscribe to either edition of the podcast directly in iTunes; just search for Smalltalk and look in the Podcast results. You can subscribe to the mp3 edition directly using this feed, or the AAC edition using this feed using any podcatching software. You can also download the podcast in ogg format.
If you like the music we use, please visit Josh Woodward's site. We use the song Troublemaker for our intro/outro music. I'm sure he'd appreciate your support!
If you have feedback, send it to jarober@gmail.com - or visit us on Facebook - you can subscribe in iTunes using this iTunes enabled feed.. If you enjoy the podcast, pass the word - we would love to have more people hear about Smalltalk!
Welcome to episode 78 of Independent Misinterpretations - a Smalltalk and dynamic language oriented podcast with James Robertson and David Buck.
This week we have part one of Sam Adam's keynote from STIC 2012 - if you prefer to watch the video, you should visit the STIC website. Part two will be posted next week. Sam's talk was on massive parallelism and objects - it was very well received at the conference.
You can subscribe to the podcast in iTunes (or any other podcatching software) using this feed directly or in iTunes with this one.
To listen now, you can either download the mp3 edition, or the AAC edition. The AAC edition comes with chapter markers. You can subscribe to either edition of the podcast directly in iTunes; just search for Smalltalk and look in the Podcast results. You can subscribe to the mp3 edition directly using this feed, or the AAC edition using this feed using any podcatching software. You can also download the podcast in ogg format.
If you like the music we use, please visit Josh Woodward's site. We use the song Troublemaker for our intro/outro music. I'm sure he'd appreciate your support!
If you have feedback, send it to jarober@gmail.com - or visit us on Facebook - you can subscribe in iTunes using this iTunes enabled feed.. If you enjoy the podcast, pass the word - we would love to have more people hear about Smalltalk!
Today's Smalltalk 4 You looks at the standard development process using VA Smalltalk and ENVY. If you have trouble viewing it here in the browser, you can also navigate directly to YouTube. To watch now, click on the image below:
If you have trouble viewing that directly, you can click here to download the video directly. If you need the video in a Windows Media format, then download that here.
You can also watch it on YouTube:
Today we'll take a look at the normal development process in VA Smalltalk using ENVY. The general pattern works as follows:
Create a Configuration Map
Create your Application(s) and add them to your configuration map
Create your classes and extensions with your application(s), versioning and releasing the classes as you develop them
Leave the Application(s) and Config Map "open", only versioning them as you reach development checkpoints
As you begin work each day, load the latest open edition of the config map
To start, create the config map:
Now create the Applications you need, and write code inside of them:
Version and release the classes in your Applications, leaving the Applications "open":
Make sure you add all of your Applications to the config map, in the correct order for loading. Also specify the necessary pre-reqs. If you mess this up (i.e., the map won't load), don't worry - you can edit the config map details without having it loaded:
Now, as you begin each working day, load the latest open edition of the config map, with all developers working within the open edition:
You only need to version and release the Applications and Config Map as you reach checkpoints. When and how you reach them will depend on your process, of course - but the process we've sketched here is the one you'll want to follow.
Need more help? There's a screencast for other topics like this which you may want to watch. Questions? Try the "Chat with James" Google gadget over in the sidebar.
Today's Javascript 4 You looks at finding the things that are not matched by a JQuery selector. If you have trouble viewing it here in the browser, you can also navigate directly to YouTube.
Join the Facebook Group to discuss the tutorials. You can view the archives here.
To watch now, click on the image below:
If you have trouble viewing that directly, you can click here to download the video directly. If you need the video in a Windows Media format, then download that here.