Newbie Question: How to organize program with lots of components

Hi,
After struggling through the basics of Swing programming, I've finally got my application to look like what I want. Now I have to deal with all the inputs and variables (which is the hard part ^_^).
I wonder how people usually organize numerous components and action listeners? I have a lot of fields that have to be synchronized frequently with a hardware device, and they are also adjustable by a number of menus.
Currently I've just stuffed all the listeners and actions as inner classes in my main display frame. I am hoping to create a separate class that can manage all these actions, or a more elegant way to organize my program.
For now I'm reading up on MVC (Model View Controller). Is that a good place to start? Or how about XML?
I know this isn't a very specific question, but I'd appreciate a push in the right direction ^_^
Thanks!
Cindy

I would look at MVC and its part - Observer pattern.
Denis Krukovsky
http://dotuseful.sourceforge.net/
http://dkrukovsky.blogspot.com/

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Newbie Question: How much computer do I need?

Newbie Question:
I would like to use MainStage 3 in a live performance environment to play bars, parties, etc. I'm not looping, using it to playback recordings, processing outboard equipment or vocal processing. I want to stop carrying Rolands, Nords, Korgs, etc and get to a controller and a rack with a Mac Mini in it.
I tested a download of Mainstage 3 on my home Mac Mini (late 2012, 3.5 Ghz i5, 4GB RAM, 500GB drive) and it seemed to run fairly well. $30 well invested so I trekked forward... I purchased a Mac Mini (late 2009, 2.52GHz Core 2 Duo, 6GB RAM, 128GB SSD) for $200. I started to do more elaborate keyboard setups to see how the CPU would hold up. It typically runs from 30% to 50% of capacity (CPU and Memory) It actually boots and runs better than the i5. I hear the occasion gitch, but it actually seems to be getting better in time (or I'm rock and roll deaf.
I got a rack, an Airport Express, a Radial USB interface and a Nektar Panorama P6. It's starting to get expensive, but I'm emboldened by the actual quality for the sound and the flexibility of arranging for live performance. What used to take me two and three keyboards to play, I can now fit on one performance patch.
OK, now the question... am I at the limits of this little Core 2 Duo? Should I upgrade the i5 with more RAM and a bigger SSD and use that? Should I get a new(er) i7 and bite the $1,500 bullet for the additional RAM and SSD?
I see that most of you are running pretty nice Macbook Pros with i7 and lots of everything. My needs are modest; am I OK?
BTW, I want to run a Mac Mini in a box because I don't want to carry a laptop out in the open. If I was doing bigger shows I wouldn't care but I play some rowdy bars and constantly have folks hanging off me while I'm playing. It's fun, but hard on gear. If you can't drop it or dip it in beer, it won't last long where I work.
Matt Donnelly

Rule of thumb: newer and faster is better. But, depending the complexity of your needs you may be OK with an older Mac. Some glitches that happen in a live performance are due to loss of communication with USB or Firewire inputs, so make sure they're secure. I recently upgraded from a 2010 Mac Mini 2.6 dual core with 16 GB RAM, which was used live for nearly four years, to the latest Mac Mini 3.0 i7 with 16 GB RAM and a 500 GB SSD. I was getting an occasional stuck note with the older one. The new one is rock solid. Some of my patches may have up to a dozen channel strips mapped to three keyboards. The Mini is mounted in a rack next to a MOTU Ultralite Hybrid. It is a good idea to map a panic button on your keyboard to controller # 123(all notes off). Also, you might want to invest in a battery backup power supply(APC, Cyberpower, etc.-$40-$60) to protect your Mac against power loss, which can damage you hard drive.

Newbi Question: How does one create a similar page to this using APEX 3.1?

Hi,
I am trying to create a help document with screen shoots inside our APEX web application and I am hamstrung by the type of Region and Item objects available to me. When I tried to create HTML region I was limited to how much html characters I can put in the source. When I look into the item menu nothing seems to allow me to stick in large chunk of HTML code either.
A little searching on this forum and I came across this page: http://www.oracle.com/technology/obe/apex/apex31nf/apex31blob.htm#t
It is exactly the type of page I want to create with lots of text and screen shots and I presume that it is built within APEX? So my questions is: How did they do this? Did they use tools available within APEX or some external tool? Was all this outputted using BLOB and Htp("") and PL/SQL? I am trying hard to avoid having to do that.
I was also unable to stick in an in image into my page using instruction from http://download.oracle.com/docs/cd/E10513_01/doc/appdev.310/e10499/ui.htm#CBBHGJCH which left me pretty frustrated. (external amazon gif worked).
Thanks for any help,
Wayne

Wayne,
I am glad that you got images to display. I am not sure what kind of html report you want to display, there is a limit of number of characters in a region its 32767 characters, so if you want to display large html file you can create html region with no template and limit each region to 30,000 characters and create as many region as you want.
If you want to display data from any table ( as per the first url) you can create SQL reports, something like
select ename
 , deptno
 , sal
 , case
 when ename = 'SCOTT' then '<img src="#WORKSPACE_IMAGES#us_flag.gif" alt="Image Title">'
 when ename = 'SMITH' then '<img src="#WORKSPACE_IMAGES#chants.gif" alt="Image Title">'
 when ename = 'MARTIN' then '<img src="#WORKSPACE_IMAGES#cloche.gif" alt="Image Title">'
 when ename = 'MILLER' then '<img src="#WORKSPACE_IMAGES#chandelles.gif" alt="Image Title">'
 when ename = 'JONES' then '<img src="#WORKSPACE_IMAGES#shoe.gif" alt="Image Title">'
 else '<img src="#WORKSPACE_IMAGES#hallo.gif" alt="Image Title">'
 end image
from empThanks,
Manish

Designer beginner's question: How to populate form with XML web service output?

sorry, here is yet another Adobe Designer beginners question: My form uses a webservice data connection which returns an xml-string like this: <?xml version="1.0" encoding="utf-16"?> <CurrentWeather> <Location>Sion, Switzerland (LSGS) 46-13N 007-20E 481M</Location> <Time>Apr 26, 2007 - 09:50 AM EDT / 2007.04.26 1350 UTC</Time> <Wind> from the WSW (240 degrees) at 15 MPH (13 KT):0</Wind> <Visibility> greater than 7 mile(s):0</Visibility> <SkyConditions> partly cloudy</SkyConditions> <Temperature> 80 F (27 C)</Temperature> <DewPoint> 46 F (8 C) </DewPoint> <RelativeHumidity> 30%</RelativeHumidity> <Pressure> 29.88 in. Hg (1012 hPa)</Pressure> <Status>Success</Status> </CurrentWeather> What is the simplest and recommended way to extract the element fields to my form? Thank you very much an kind regards, Hans Grund

The question is still unanswered!
Let me give some details and break up the problem
in more specific questions:
- In Designer 8.1 I click new data binding --> wsdl -->
http://www.webservicex.net/globalweather.asmx?wsdl
A message box comes up and says "cannot load wsdl file"
==> 1. Question:
Why maybe refuses Designer to load the http-wsdl,
although this option is explicitly allowed?
- When I save the wsdl to a file, Designer loads it
without any problems. The web service uses two input parameters
(CountryName and CityName) and returns an xml-string GetWeatherResult)
like the one in my first posting. I drag these fields from the binding view to my form, and it runs ok!
- THE PROBLEM IS, THAT I NEET TO EXTRACT THE ELEMENT FIELDS
FROM THE RESULT XML-STRING!
==> 2. Question:
How to extract xml element fields from wsdl output into a form?
- I tried with eclipse and XmlSpy to build a modified wsdl file
with structured output definition, so that the specific element fields
show up in the data binding view and are usable to my form,
and the modified wsdl maps consistently to the web service result string.
So far without success: In the PDF -preview or Reader-
when the wsdl-binding is executed and the web service output
should show up in the result fields, just nothing happens.
==> 3. Question:
Can this strategy to provide a "modified wsdl" possibly succeed,
and how?
==> 4. Question:
Is is possible -and how?- to check whether an xml string
is valid as web service output against the wsdl-definition?
==> 5. Question:
How to debug a web service connection with Designer?
- Finally I tried to find a way to load the result xml-string
into a local var in the script editor and parse it, much like:
var xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.load(DataSet.MyForm.GetWeatherResult.rawValue);
==> 6. Question:
Is it possible -and how?- to use a framework like dotnet?
How to utilize SAX or DOM in Designer?
Many thanks and appreciations for your help!!

How to download program with screens & menus

Hi,
I have created a report which has many includes, screens & menus created using screen & menu painter.
How I can download this program with all the objects. Or I have to download each include & screen using download facility. Even after that there is no functionality to downlaod Menus.
pls help

Hi,
Take a look at http://www.sapgenie.com/abap/code/abap13.htm . See if it helps.
You might also find http://www.abovesoft.com/start.html helpful.
Regards
Message was edited by: Shehryar Khan

Some basic questions how to handle Exceptions with good style

Ok I have two really basic Exception questions at once:
1. Until now I always threw all exceptions back all the way to my main method and it always worked well for me but now I am sitting at a big project where this method would explode the programm with throwings of very many exceptions in very many methods. So I would like to know if there is a more elegant solution.
2. What do I do with exceptions that will never occur?
Lets say I have a method like this:
void main() {calculate();}
void calculate()
sum(3,5);
void sum(int a,int b)
MathematicsA.initialise("SUM"); // throws AlgorithmNotFoundException, will never occur but has to be handled
}So what is the most elegant way?:
h4. 1. Ignore because it will not happen
void sum(int a,int b)
try {MathematicsA.initialise("SUM");}
catch(AlgorithmNotFoundException) {}
}h4. 2. Print stacktrace and exit
void sum(int a,int b)
try {MathematicsA.initialise("SUM");}
catch(AlgorithmNotFoundException e)
e.printStackTrace();
System.exit();
}h4. 3. throw it everywhere
void main() throws AlgorithmNotFoundException, throws ThousandsOfOtherExceptions {}
void calculate() throws AlgorithmNotFoundException, throws HundretsOfOtherExceptions
sum(3,5);
void sum(int a,int b) throws AlgorithmNotFoundException
MathematicsA.initialise("SUM");
}h4. 4. Create special exceptions for every stage
void main() throws MainParametersWrongException
try {calculate();}
catch(Exception e)
throw new MainParametersWrongException();
void calculate() throws SumInternalErrorException
try {sum(3,5);}
catch (SumInternalErrorException)    {throw new CalculateException();}
void sum(int a,int b) throws SumInternalErrorException
try
MathematicsA.initialise("SUM");
} catch (AlgorithmNotFoundException e) {
throw new SumInternalErrorException();
}P.S.: Another problem for me is when a method called in a constructor causes an Exception. I don't want to do try/catch everytime I instantiate an object..
Example:
public class MySummation()
     Mathematics mathematics;
     public MySummation()
             mathematics.initialise("SUM"); // throws AlgorithmNotFoundException
     void sum(int x,int y)
          return mathematics.doIt(x,y);
}(sorry for editing all the time, I was not really sure what I really wanted to ask until i realised that I had in fact 2 questions at the same time, and still it is hard to explain what I really want to say with it but now the post is relatively final and I will only add small things)
Edited by: kirdie on Jul 7, 2008 2:21 AM
Edited by: kirdie on Jul 7, 2008 2:25 AM
Edited by: kirdie on Jul 7, 2008 2:33 AM
Edited by: kirdie on Jul 7, 2008 2:34 AM

sphinks wrote:
I`m not a guru, but give my point of view. First of all, the first way is rude. You shouldn`t use try with empty catch. "rude" isn't the word I'd use to describe it. Think about what happens if an exception is thrown. How will you know? Your app fails, and you have NO indication as to why. "stupid" or "suicidal" are better descriptions.
Then for the second way, I`ll reccomend for you use not printStackTrace(); , but use special method for it:
public void outputError (Exception e) {
e.printStackTrace();
}It`ll be better just because if in future you`d like to output error message instead of stack of print it on GUI, you`ll need change only one method, but not all 'try' 'catch' statements for changing e.printStackTrace(); with the call of new output method.I disagree with this. Far be it from me to argue against the DRY principle, but I wouldn't code it this way.
I would not recommend exiting from a catch block like that. It's not a strategy for recovery. Just throw the exception.
Then, the third way also good, but I suppose you should use throws only if the caller method should know that called method have a problem (for example, when you read parametrs from gui, so if params are inccorect, main method of programm should know about it and for example show alert window)."throw it everywhere"? No, throw it until you get to an appropriate handler.
If you're writing layered applications - and you should be - you want to identify the layer that will handle the exception. For example, if I'm writing a web app with a view layer, a service layer, and a persistence layer, and there's a problem in the persistence tier, I'd let the service layer know what the persistence exception was. The service layer might translate that into some other exception with some business meaning. The view layer would translate the business exception into something that would be actionable by the user.
And in all other cases I suppose you should use the fourth way. So I suppose it`s better to combine 2,3,4 ways as I have mentioned above.I don't know that I'd recommend special exceptions for every layer. I'd reuse existing classes where I could (e.g., IllegalArgumentException)
Sorry, I can give you advice how to avoid problem with try-catch in constructor. :-(You shouldn't catch anything that you can't handle. If an exception occurs in a constructor that will compromise the object you're trying to create, by all means just throw the exception. No try/catch needed.
You sound like you're looking for a single cookie cutter approach. I'd recommend thinking instead.
%

How to organize files with 256Gb SSD

I would like to apologize in advance if i am posting in the wrong discussions board.
I would like to ask community of advice on how to deal with a huge amount of data which doesn't seem to fit in the laptop's hard drive. When i bought i didn't imagine how fast it would fill up and looking for a good easy to use solution.
Inputs:
Macbook Pro Retina 13 inch
256Gb SSD Drive
QNAP 1.5Tb RAID TS210 (slow data transfer)
Seagate 4TB external USB 3.0 drive (external power)
Seagate 1TB external USB 3.0 Drive
JetDrive 64gb (memory card)
Yosemite
Problem:
My wife and i have 2 accounts on my laptop. my iTunes full library is about 140Gb, hers about 20Gb. My iPhoto library is about 50Gb and lives on Jetdrive. My wife's about 80Gb and i had to temporary move it to external drive so iTunes can backup her iPhone before upgrade. So, we constantly running out of time and live in a small apartment where having laptop to be connected constantly to external drive is not very nice solution. Our NAS drive is quite slow even with 802.11ac connected at 1Gigabit it only manages about 5mb/s (just old drive). Yosemite is buggy and doesn't handle network connection well so after sleep you have to kill Finder to reconnect. my wife won't be able to do it
So i wonder how people manage this. some solutions come to mind. Not to store photos in iPhoto library. But than how to organize and edit them? use Lightroom? what organization should be? Having iTunes on NAS is not very robust, library breaks quite often and requires repairs. How other deal with it? iPhone backups are not even part of the iTunes folder.
Basically any suggestions from experience people have would be most welcome. I don't think iCloud/Cloud solutions are there yet, by simply cost and speed reasons.
Many Thanks!
R.

There is no need to download anything.
In iTunes, select File > Library > Organize Library > Consolidate Library
This will consolidate all content listed in iTunes into the iTunes Media Folder.

Newbie question: how do I create a bokeh effect in PSE 8?

I am having trouble getting a blurred background effect in a portrait. Could someone please tell me how to do it. I've attached the example I am working on. All I want to do is to blur down the bricks behind the man's head, but I cannot seem to do it by creating a duplicate layer and then using the blur filter. Thanks for any help you can give.

The steps you describe are correct, so it sounds like a problem with the program. Is this a new problem or has it always been that way? Do you have this problem with other Blur tools or other Filters, or just the Gaussian Blur? You might want to post another forum topic titled "problem with Gaussian Blur"; more users are likely to read and respond to it.
You might try resetting the preferences file. This often corrects PSE problems which pop up for no apparant reason. I don't know if this works in PSE8, but there is how to do it in previous versions: Press and hold Option-Command-Shift immediately while starting PSE. The timing is critical; you may have to try this several times. A dialog box will pop up with the question "Delete the Adobe Photoshop Elements Settings file?" (or similar message depending on the PSE version). Click YES.
Here are 2 sites which address the corrupted preferences file:
http://www.northlite.net/ps/prefs.htm
http://www.photokaboom.com/photography/learn/Photoshop_Elements/troubleshooting/1_troubles hooting.htm#Preference

[SOLVED] Awesome WM autostart questions/how to find program "class"

Hi there,
Right so I'm using Awesome WM and want to auto start programs into specific tags.
This is the code I have, and everything is working as expected:
--Autostart Programs
awful.util.spawn_with_shell("chromium")
awful.util.spawn_with_shell("skype")
awful.util.spawn_with_shell("spotify")
-- {{{ Rules
awful.rules.rules = {
-- All clients will match this rule.
{ rule = { },
properties = { border_width = beautiful.border_width,
border_color = beautiful.border_normal,
focus = true,
keys = clientkeys,
buttons = clientbuttons } },
{ rule = { class = "Chromium" },
properties = { tag = tags[1][6] } },
{ rule = { class = "Skype" },
properties = { tag = [1][3]} },
{ rule = { class = "Spotify" },
properties = { tag = [1][4] } },
So what I'm wondering is how do I find out what the class of programs for this section: "{ rule = { class = " " },"?
I installed Arch on my chromebook and I've been using a lot of the programs such as Evernote and Trello. I have the chrome app drawer (http://www.omgchrome.com/enable-chrome- … her-linux/).
I created a shortcut and can auto launch programs such as evernote using the chrome app drawer using the command we can see from the desktop entry:
awful.util.spawn_with_shell("/usr/bin/chromium --profile-directory=Default --app-id=lbfehkoinhhcknnbdgnnmjhiladcgbol")
However, the issue is that it always opens on whatever tab I'm using. I cannot find the class to add to the rules.
None of these work:
{ rule = { class = "chrome-lbfehkoinhhcknnbdgnnmjhiladcgbol-Default.desktop" },
properties = { tag = tags[1][6] } },
{ rule = { class = "Evernote Web" },
properties = { tag = tags[1][6] } },
{ rule = { class = "/usr/bin/chromium --profile-directory=Default --app-id=lbfehkoinhhcknnbdgnnmjhiladcgbol" },
properties = { tag = tags[1][6] } },
Any suggestions on what I can do to find the "class"?
Last edited by Gwynplaine (2014-11-14 00:24:01)

run 'xprop' in a terminal and your cursor will change to a cross. Click anywhere on the app you want to identify and the class will be sent to the screen (along with a ton of other stuff)
It's in the xorg-xprop pkg
Last edited by oliver (2014-11-14 00:16:08)

A newb question - How do I get iTunes to stop DELETING things from my iPod?

I just got my PC back up and running, went to use my brand new iPod that was loaded with music/movie/podcasts from my laptop, I install iTunes on the PC, get everything set to my account and then take a look at my iPod only to find EVERYTHING has just been deleted.
So far I hate iTunes and I truly hate the fact that I cannot just drag and drop files onto my iPod.
Is there a way to lock files so they do not get deleted? Now all the stuff I have purchased cannot be downloaded again, another stupid idea. Once I pay for something I should be able to download it to the same iPod as often as I need.
What truly ***** is I am a technogeek and have been an IT person for a long time, just when I think I understand how this software works, BAM it deletes all the files on my iPod.
Is there any other decent software out there that I can use besides iTunes?
I think you get the idea, I am frustrated and I know it is something simple that I am missing or overlooking. I guess I have to go buy iTunes for Dummies huh
Any help or information that anyone can offer would be wonderful.
Thanks,
John W
Custom Windows XP Pro First Gen iMac

thanks
I will still look for a different program.
The other programs (like Anapod) are all Windows Explorer based and thus only work decently on very small music collections (e.g., less than 500 tracks or so). If you have a substantial collection, these schemes quickly become more trouble than they are worth because you must track everything manually or indirectly.
My library is medium sized at 17,500 tracks (still under 75GB, just barely) and I could never manage it without a database like iTunes. If I had a large collection this advice would go double.

Automation Question: How do I work with an open 'upload file' dialog?

Preamble:
Was a very experienced VBS automation guy, this is my first emersion into the wonderful world of C# automation. Using Selenium WebDiver, I have successfully logged into a web page, filled out a few web forms, clicked on the 'add image' button and am
now faced with an open 'upload file' dialog. Pretty sure the namespace I need is system.windows.forms.OpenFileDialog so added the reference to my project.
Question:
All the examples on the web seem to relate to app development and not test automation. But, I need to automate this web application and all that's left is the image upload. What do I do when faced with an
already opened 'upload file' dialog? I know the image and path, how do I automate the process of placing the full path into the dialog and clicking the OK button or alternately, enter key?
Thank you!

I doubt that you need System.Windows.Forms.OpenFileDialog, the browser isn't written using WinForms and that dialog is a Win32 native dialog.
Maybe you should post this in the Selenium Users
group? It has little to do with C#, it's more about how Selenium interacts with the browser.

Question: How to update app with a new version with new SQLite tables?

We're updating an application in the App Store, and haven't yet found good information on how to deal with updates to the SQLite Schema and data that should be transferred between apps.
Anyone successfully done this?
Q1: Does the old DB files stay on the iPhone after update? Does the installer do a "diff" between them? In our case, we just extended tables, rather than changing them, in hope that we can successfully move the data for users gracefully.
Q2: If the installer does in fact wipe all the data and files on the app before install, is there a way to access the data before it updates, so the app can gracefully update the data?

to Templeton Peck:
Good Sir,
I would thoroughly appreciate you responding in a helpful manner rather than punishing my question with no regard to my question. Your harsh, quick, and false judgement was certainly not appreciated here. In regards to the macbook release: I was simply wondering IF there were releases of information that I had not heard of. I wasn't asking you to spill rumors of never released info.
Maybe you should read this material a little more carefully without hastily looking forward to ripping apart a wondering mac user.
But in regards to the SQL, I enjoy the following:
UPDATE table
SELECT........

Newbie questions - How do I log in & what's the repository

1) After I install Oracle 9i lite, and start Sql*plus I'm stuck - becuase I have no idea what to use for the UserID/Password, etc., and can find NOTHING in the HTML doc/release notes to get me over this most basic requirement.
2) What's the repository, and why do I need it?

Thanks for sending over the information.
You did create a second Skype account based on your Microsoft account email (NB: That's not necessarily a @live.com or @outlook.com email address, since you can sign up for a Microsoft account using any email address as identifier).
To resolve this situation please:
Sign in with your Microsoft account at www.skype.com/go/myaccount
Delete this Skype account based on your Microsoft account by following the "unlink" instructions: https://support.skype.com/en/faq/FA12211/how-do-i-unlink-my-skype-account-from-my-microsoft-or-faceb...
After you've done this please re-enter the password recovery flow for your Skype account and use your email address again. This time around - since no Skype account based on that email as Microsoft account exists - you should be able to recover your password.
Follow the latest Skype Community News
↓ Did my reply answer your question? Accept it as a solution to help others, Thanks. ↓

Newbie question - how to resize

Sorry for being a newb. Just got a Mac mini and have imported all my digital pics into iPhoto. I cannot for the life of me see an option to resize photos. I can see how to crop, but not resize. Please help!

Hi Just Jim,
You can import them back into the library if you wish. I personally would keep them separate in another folder in the Pictures folder (not iPhoto Library folder).
There is really no need to have smaller versions of the photos in iPhoto. It is always best to use the largest version of photos in iPhoto, especially if you want to print, do slideshows, make books etc. with the photos.

Newbie question: How to share large QT movie files exported from FCP X?

Well, I've navigated through FCP X for the first time and I now have 16 QuickTime movie files I have exported from FCP X. Each file is a song from a live band performance. The files are:
- Apple ProRes 422
- 1920 x 1080
- 24-bit
- Frame rate 29.97 fps
Now I need to share these files with the band members. They will use them for two purposes:
- Watch, as feedback on their performance. In this case, I'd like to preserve the quality as much as possible
- Put some of the movies on YouTube, where quality will be lost, of course. They may post only short clips from the songs.
These 16 .mov files total 115GB. The smallest is 6.5GB, the largest is 13.9GB.
The quality of the movies is fantastic, both video and audio. I cringe to think about degrading the quality............but I have the practical problem of how to get the files to five different band members.
I normally distribute audio files I've mixed in Pro Tools via DVD-R discs, but the files are much smaller.
What are my options for sharing the files?
Do I need to use an application like Compressor to compress the files (ugh) to get them onto multiple DVD-R's?
I would assume this is a common problem that all FCP X users deal with.

I strongly recommend you to use Compressor. It is easy to use and there a lot of presets.

Newbie Question: How to organize program with lots of components

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