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  • Disabling the charms bar

    - by Kelly D
    How do I disable the the charms bar? I am surprised there is no easy way to disable the feature. Here's what I've done so far: 1.) Disabled right edged swipe gesture in my touchpad settings. Part of the problem is solved as this was probably the most common way the charms bar would pop up. But there are still many other ways it can pop up. 2.) Used regedit and added the key "EdgeUI" with "DisableCharmsHint" set to 1 in HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\ImmersiveShell\ This stopped it from popping up whenever I moved the cursor to the top right or bottom right of the screen. I mean who ever needs to move his/her mouse there? (sarcasm) But there's ANOTHER WAY it pops up: when I move the cursor to the top right of the screen followed by moving it downwards OR when I move the cursor to the bottom right of the screen followed by moving it upwards! How do I disable this method of invoking the charm bar?

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  • Move the Status Bar Web Address Display to the Address Bar

    - by Asian Angel
    Is the ability to see the addresses for weblinks the only reason that you keep the Status Bar visible? Now you can hide the Status Bar and move that address display to the Address Bar in Firefox. Before Here is the normal “Status Bar” address display for the weblink we were hovering the mouse over in our browser. That is nice but if you really prefer to keep the “Status Bar” hidden what do you do? Move that display to a better (and definitely more convenient) location. After Once you have the extension installed that is all there is to it…you are ready to go. Notice the address display in “Address Bar”. That is definitely looking nice. Just for fun we temporarily left the “Status Bar” visible as a demonstration while hovering over the link. And then with the “Status Bar” totally disabled…more screen real-estate is always a good thing. Note: The Status Address Bar extension does not show the original address behind shortened URLs. Conclusion If you are looking for an alternate way to see the address behind weblinks and acquire more screen real-estate, then the Status Bar extension will be a wonderful addition to your Firefox Browser. Links Download the Status Address Bar extension (Mozilla Add-ons) Similar Articles Productive Geek Tips Clear the Auto-Complete Email Address Cache in OutlookFind Out a Website’s Actual Location with FlagfoxView Website Domain Names Clearly with Locationbar2Switch MySQL to listen on TCPSave 15 Keystrokes – Use Ctrl+Enter to Complete URL TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Awe inspiring, inter-galactic theme (Win 7) Case Study – How to Optimize Popular Wordpress Sites Restore Hidden Updates in Windows 7 & Vista Iceland an Insurance Job? Find Downloads and Add-ins for Outlook Recycle !

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  • Get the Windows 8 Charms Bar in Windows 7, Vista, and XP Using a RocketDock Skin

    - by Lori Kaufman
    Have you tried one of the Windows 8 Preview releases and found you like the Charms bar on the Metro Start Screen? If you’re not quite ready to give up Windows 7, there is a way to get the Charms bar from Windows 8. You can easily add the Charms bar to your desktop in Windows 7 using a RocketDock skin. RocketDock is a free, customizable application launcher for Windows. See our article about RocketDock to learn how to add it to your Windows Desktop. You can also use a portable version of RocketDock. To add a “Charms bar” to your Windows 7 desktop, extract the .rar file you downloaded (see the link at the end of this article). RAR files are associated with WinRAR, which is shareware. NOTE: You can use WinRAR free of charge for 40 days but then you have to buy it ($29.00). However, you can also use the free program 7-Zip to extract RAR files. HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux Hack Your Kindle for Easy Font Customization

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  • How do I deploy a charm from a local repository?

    - by Matt McClean
    I am trying to run the Charm tutorial from the juju documentation by creating a new charm from a local repository. I started by installing the charms from bzr to my local ubuntu 12.04 desktop running in a virtual machine. The new file structure is the following: ubuntu@ubuntu-VirtualBox:~$ find charms/precise/drupal/ charms/precise/drupal/ charms/precise/drupal/hooks charms/precise/drupal/hooks/db-relation-changed charms/precise/drupal/hooks/install charms/precise/drupal/hooks/start charms/precise/drupal/hooks/stop charms/precise/drupal/metadata.yml charms/precise/drupal/README When I install the mysql charm, which was downloaded from the remote charm repository, it works fine. However when I run the following command to deploy the new charm it fails with the following error message: ubuntu@ubuntu-VirtualBox:~$ juju deploy --repository=charms local:precise/drupal 2012-05-09 10:01:05,671 INFO Searching for charm local:precise/drupal in local charm repository: /home/ubuntu/charms 2012-05-09 10:01:05,845 WARNING Charm '.mrconfig' has an error: CharmError() Error processing '/home/ubuntu/charms/precise/.mrconfig': unable to process /home/ubuntu/charms/precise/.mrconfig into a charm Charm 'local:precise/drupal' not found in repository /home/ubuntu/charms 2012-05-09 10:01:06,217 ERROR Charm 'local:precise/drupal' not found in repository /home/ubuntu/charms Is there some file missing in the drupal charm directory that juju needs to make the charm valid? Also, I get the file processing error for the .mrconfig file also when deploying the mysql charm so is there something I need to change there perhaps?

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  • Regular expression to remove one parameter from query string

    - by Kip
    I'm looking for a regular expression to remove a single parameter from a query string, and I want to do it in a single regular expression if possible. Say I want to remove the foo parameter. Right now I use this: /&?foo\=[^&]+/ That works as long as foo is not the first parameter in the query string. If it is, then my new query string starts with an ampersand. (For example, "foo=123&bar=456" gives a result of "&bar=456".) Right now, I'm just checking after the regex if the query string starts with ampersand, and chopping it off if it does. Example edge cases: Input | Output -------------------------+----------------- foo=123 | (empty string) foo=123&bar=456 | bar=456 bar=456&foo=123 | bar=456 abc=789&foo=123&bar=456 | abc=789&bar=456 Edit OK as pointed out in comments there are there are way more edge cases than I originally considered. I got the following regex to work with all of them: /&foo(\=[^&]*)?(?=&|$)|^foo(\=[^&]*)?(&|$)/ This is modified from Mark Byers's answer, which is why I'm accepting that one, but Roger Pate's input helped a lot too. Here is the full suite of test cases I'm using, and a Perl script which tests them. Input | Output -------------------------+------------------- foo | foo&bar=456 | bar=456 bar=456&foo | bar=456 abc=789&foo&bar=456 | abc=789&bar=456 foo= | foo=&bar=456 | bar=456 bar=456&foo= | bar=456 abc=789&foo=&bar=456 | abc=789&bar=456 foo=123 | foo=123&bar=456 | bar=456 bar=456&foo=123 | bar=456 abc=789&foo=123&bar=456 | abc=789&bar=456 xfoo | xfoo xfoo&bar=456 | xfoo&bar=456 bar=456&xfoo | bar=456&xfoo abc=789&xfoo&bar=456 | abc=789&xfoo&bar=456 xfoo= | xfoo= xfoo=&bar=456 | xfoo=&bar=456 bar=456&xfoo= | bar=456&xfoo= abc=789&xfoo=&bar=456 | abc=789&xfoo=&bar=456 xfoo=123 | xfoo=123 xfoo=123&bar=456 | xfoo=123&bar=456 bar=456&xfoo=123 | bar=456&xfoo=123 abc=789&xfoo=123&bar=456 | abc=789&xfoo=123&bar=456 foox | foox foox&bar=456 | foox&bar=456 bar=456&foox | bar=456&foox abc=789&foox&bar=456 | abc=789&foox&bar=456 foox= | foox= foox=&bar=456 | foox=&bar=456 bar=456&foox= | bar=456&foox= abc=789&foox=&bar=456 | abc=789&foox=&bar=456 foox=123 | foox=123 foox=123&bar=456 | foox=123&bar=456 bar=456&foox=123 | bar=456&foox=123 abc=789&foox=123&bar=456 | abc=789&foox=123&bar=456 Test script (Perl) @in = ('foo' , 'foo&bar=456' , 'bar=456&foo' , 'abc=789&foo&bar=456' ,'foo=' , 'foo=&bar=456' , 'bar=456&foo=' , 'abc=789&foo=&bar=456' ,'foo=123' , 'foo=123&bar=456' , 'bar=456&foo=123' , 'abc=789&foo=123&bar=456' ,'xfoo' , 'xfoo&bar=456' , 'bar=456&xfoo' , 'abc=789&xfoo&bar=456' ,'xfoo=' , 'xfoo=&bar=456' , 'bar=456&xfoo=' , 'abc=789&xfoo=&bar=456' ,'xfoo=123', 'xfoo=123&bar=456', 'bar=456&xfoo=123', 'abc=789&xfoo=123&bar=456' ,'foox' , 'foox&bar=456' , 'bar=456&foox' , 'abc=789&foox&bar=456' ,'foox=' , 'foox=&bar=456' , 'bar=456&foox=' , 'abc=789&foox=&bar=456' ,'foox=123', 'foox=123&bar=456', 'bar=456&foox=123', 'abc=789&foox=123&bar=456' ); @exp = ('' , 'bar=456' , 'bar=456' , 'abc=789&bar=456' ,'' , 'bar=456' , 'bar=456' , 'abc=789&bar=456' ,'' , 'bar=456' , 'bar=456' , 'abc=789&bar=456' ,'xfoo' , 'xfoo&bar=456' , 'bar=456&xfoo' , 'abc=789&xfoo&bar=456' ,'xfoo=' , 'xfoo=&bar=456' , 'bar=456&xfoo=' , 'abc=789&xfoo=&bar=456' ,'xfoo=123', 'xfoo=123&bar=456', 'bar=456&xfoo=123', 'abc=789&xfoo=123&bar=456' ,'foox' , 'foox&bar=456' , 'bar=456&foox' , 'abc=789&foox&bar=456' ,'foox=' , 'foox=&bar=456' , 'bar=456&foox=' , 'abc=789&foox=&bar=456' ,'foox=123', 'foox=123&bar=456', 'bar=456&foox=123', 'abc=789&foox=123&bar=456' ); print "Succ | Input | Output | Expected \n"; print "-----+--------------------------+--------------------------+-------------------------\n"; for($i=0; $i <= $#in; $i++) { $out = $in[$i]; $out =~ s/_PUT_REGEX_HERE_//; $succ = ($out eq $exp[$i] ? 'PASS' : 'FAIL'); #if($succ eq 'FAIL') #{ printf("%s | %- 24s | %- 24s | %- 24s\n", $succ, $in[$i], $out, $exp[$i]); #} }

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  • Progress bar in notification bar

    - by android_dev
    Hello everybody, I would like to put a progress bar in the notification bar. The idea is showing the progress bar while the program uploads a file to a server. Everything else is ok, but I can not figure out how to refresh the progress bar inside the notification. Does anybody knows any pattern to play with? I mean, where I should refresh the progress bar, in a service or activity and so. Thanks in advance.

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  • Updating a Progress Bar within the Status Bar [migrated]

    - by Muhnamana
    I'm trying to figure out how to incorporate a progress bar within the status bar to show how much processing is completed. Below is my example of updating the progress bar (not sure if this is the correct way or not) Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick ToolStripProgressBar1.Value = ToolStripProgressBar1.Value + 2 If ToolStripProgressBar1.Value = 100 Then ToolStripProgressBar1.Value = 0 ToolStripProgressBar1.Value = ToolStripProgressBar1.Value + 2 Timer1.Enabled = True End If End Sub Here is the code within the button. Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1Run.Click ToolStripStatusLabel1.Text = "Processing..." Timer1.Enabled = True 'more code to be inserted here End Sub What I'm not sure is how to update the progress bar based on the amount of code you have and once the processing is complete, update the ToolStripStatusLabel1 to show "Processing...Complete!".

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  • How To Disable the Charms Bar and Switcher Hot Corners in Windows 8

    - by Chris Hoffman
    Several programs can prevent the app switcher and charms from appearing when you move your mouse to the corners of the screen in Windows 8, but you can do it yourself with this quick registry hack. You can also hide the charms bar and switcher by installing an application like Classic Shell, which will also add a Start menu and let you log directly into the desktop. What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8 HTG Explains: Why You Shouldn’t Use a Task Killer On Android

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  • Ubuntu 12.04 : menu bar started to appear on window

    - by piyush
    I had some broken package problems, and had to reinstall ubuntu-desktop, libqtgui4 and some other system packages. Since then, "some" of my applications are showing menu bar within the window, like this: Some windows like Emacs, vlc are showing such menu bar, while others are working fine (nautilus, terminal still have menu bar on the unity top panel). Is there a way to get it back to the Unity panel?

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  • Upgrade to Quantal unity top bar, side bar, and window declorations missing

    - by Nicky Bailuc
    I upgraded from 12.04.1 to 12.10 via the Update Manager and the upgrade said it completed successfuly. However after rebooting the unity task bar was missing along with the launch bar and the window declorations. All compiz settings seemed to be purge deleted, and at first bootup it gave me a system error. The desktop exists, and once I remember I messed up the compiz settings and just had to press Ctrl+Alt+F1 and in the virtual terminal type "unity --reset" then "sudo reboot". Everything worked as if i reinstalled the entire operating system. This time it said “Warning no variable set. setting to :0. The reset option is now dupricated”. What am I suppose to do now? I need this fixed as soon as possible because I need a couple of certainly installed programs and the data within them (long story short).

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  • Unity bar and Menu bar Gone

    - by user121134
    I have a bootable usb stick that has Ubuntu 12.10 on it, so I loaded it onto my computer which is semi old because it was really full and ubuntu is nice software when it works. And all went well until I booted it up the first time and it said that the Compiz thing was missing and I looked that up on the internet and I must have typed 20 different codes into terminal, and nothing seemed to work. Can you please help? I dont know what to do anymore and the only thing I can do it open up terminal because nothing pops up on the screen. Thanks :)

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  • Charms and the App Bar

    - by Dennis Vroegop
    Ok. I admit. I made a mistake in the last post about our planespotter app. I have dedicated a full part of the hub to Social. I also had a section called Friends but that made sense since I said that “Friends” is a special group of people that connect to each other through our app and only our app. Social however is sharing our spots with Twitter, Facebook and so on. Now, we could write that functionality in our app in a different section but there is one small problem with that: users don’t expect that. Ok, I admit. The mistake was quite deliberate to give me an excuse to write this part. But still: the mistake is one I see a lot. People are trying to do stuff in their application that they shouldn’t be doing. This always strike me as slightly odd: why do some work when others have already done it for you and you can just use it? After all: good developers are lazy (lazy people will always try to find the easiest way to do something and in development land this usually means the cleanest and best to support way…) So. What is that part that Microsoft has done for us and we don’t have to do ourselves? The answer lies on the right hand of your Win8 screen: This is a screenshot of my tablet (as you can see I am writing this right now….) When I swipe my finger from out of the screen on the right inside the screen (or move the mouse to the upper right corner) this menu will appear. Next to settings and the start menu button we’ll find the Search and the Share charms. These are two ways that your app can share the information it contains with the rest of the world, or at least: the rest of your system. So don’t write a Search feature in your app. Don’t write a Share feature in your app. It’s here already. Users, once they are used to Windows 8, will use that feature and expect it to work. If it doesn’t, they won’t like your app and you can kiss you dreams of everlasting fame goodbye. So use these two. What are they? Well, simply they are parts of a contract. In your app you say somewhere in code that you are supporting Search and Share. So when the user selects Share the system will interrogate the current app in the foreground if it supports this feature. Your app will say “But why, yes, I do!” Then the system will ask the app “Ok then, wisecrack, then share!” and you will have to provide the system with some information about the format. Other applications have subscribed to be at the receiving end of the Share contract. They have told the system that they support Sharing (receiving) and which formats they understand. If one or more of them support the formats you specify, the user will see them. The user clicks / taps on the app of their choice and data is moved from your app to the new one. So if you say you support Facebook and Twitter users can post data from your app to these networks by selecting Share. The same applies to Search. Don’t make a “search” button in your app but use the contract to tell the system that you support search and use that instead. Users will be grateful (remember that bar with men/women/creatures that are waiting for you?) The more and more people get to know Windows 8, the more they will use this. And if you are one of the people who wrote an app that helped them learn the system, well, that’s even better. So. We don’t have a Share or a Search button. We do have other buttons. Most important: we probably need a “New Spot” button. And a “Filter” might be useful. Or someway to open the camera so you can add a picture to the spot. Where will be put those? The answer is the “Appbar” . This is a application / context aware menu that slides up from the bottom of the screen when you move your finger / mouse from below the screen into it. From above downwards works just as well. Here you see an example of the appbar from the People app. (click on it for a larger version). This appears whenever you slide your finger up from below of down from above. This is where you put your commands. Remember, this is context aware so this menu will change when you are in different parts of your app or when you have selected different items. There are a few conventions when you create this appbar. First, the items on the right are “General” items, meaning they have little to do with what is on the screen right now. I think this would be a great place to add our “New Spot” icon. On the far left are items associated with the current selected item or screen. So if you have a spot selected, the button for Add Photo should be visible here and on the left hand side. Not everything is as clear as this, but this is what you should strive for. Group items together. And please note: this is the only place in Metro design where we are allowed to use lines as separators. So when you want to separate a group of icons from another group, add a line. Also note the simplicity of the buttons. No colors, no lights or shadows, no 3D. After a couple of years of fancy almost realistic looking icons people have finally decided that hey, this is a virtual world: it’s ok to look virtual as well. So make things as readable and clear as possible and don’t try to duplicate nature. It’s all about the information, remember? (If you don’t remember I’d like to point you to a older blog post of mine about the what and why of Metro). So.. think about the buttons a bit and think about Share and Search. What will you put there? Remember: this is the way the users interact with your apps and while you shouldn’t judge a book by its covers when it comes to people, this isn’t entirely so when it comes to apps. People DO judge an app by its looks and the way it feels. Take advantage of that. History has learned that a crappy app with a GREAT user interface gets better reviews than a GREAT app with a lousy UI… I know: developers will find this extremely unfair but that’s the world we live in (No, I am not saying you should deliver rubbish apps). Next time: we’ll start by building the darn thing!

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  • iPhone app with tab bar and navigation bar as peers

    - by Mac
    I'm trying to write an application that uses a navigation bar and tab bar in what (I'm gathering) is an unusual manner. Basically, I've got several "pages" ("home", "settings", etc) that each have their own tab. I'd also like to have it so that the "home" page is the root view of the navigation bar, and the other pages are the second-level views of the navigation bar. That is, I should be able to navigate to any page by clicking the appropriate tab bar item, and should be able to navigate to the home page from any other page by clicking the navigation bar's back button. Currently, I have a UINavigationBar (through a UINavigationController) and a UITabBar (through a UITabController) as children of a UIView. The various pages' view controllers are set as the tab controller's viewControllers property, and the home page's controller is also set as the navigation controller's root view. Each page view's tag is set to its index in the tab control. I have the following logic in the tab controller's didSelectViewController delegate method: - (void) tabBarController:(UITabBarController*) tabBarController didSelectViewController:(UIViewController*) viewController { if ([navController.viewControllers count] > 1) [navController popViewControllerAnimated:NO]; [navController pushViewController:viewController animated:YES]; } Also, in the navigation controller's didShowViewController delegate method, I have the following code: - (void) navigationController:(UINavigationController *) navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated { tabController.selectedIndex = viewController.view.tag; } The problem that's occurring is that when I run this, the navigation bar, tab bar and home page all display ok, but the tab bar will not respond to input - I cannot select a different tab. I gather it's more usual to have the tab bar as the child of the navigation control, or vice versa. This doesn't seem to fit my approach, because I don't want to have to individually create the subordinate control each time a change occurs in the parent control - eg: recreate tab bar each time the navigation bar changes. Does anyone have suggestions as to what's wrong and how to fix it? I'm probably missing something obvious, but whatever it is I can't seem to find it. Thanks! EDIT: I'm guessing it has something to do with both controller's trying to have ownership of the page controller, but I can't for the life of me figure out a way around it.

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  • Decrease the height of title bar in Visual Studio 2012 on secondary screen

    - by matcheek
    I have two screens on my VS2012. No problems with title bar on the main screen, on the secondary however, the title bar takes up lots of space - see screenshot attached. In VS2010, for example, the title bar on secondary screen is a lot thinier. I guess this change was made to address touch interfaces (??) but it is highly inconvenient to waste some much space just because of that. Anybody knows how the change just the height of the title bar on the secondary screen?

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  • Disable Charm bar's Touchpad gesture shortcut

    - by Chin
    I'm using an Acer AO722 laptop. Everytime I slide my finger from the right edge of the touchpad (where the slider is) toward the center (mostly accidentally), the charmbar pops up and stays on the screen until I manually click on some random spots on the screen. There's no such option in the Synaptics properties: .. nor is there any in the mouse option. Is there a way to turn this shortcut off?

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  • D3 fisheye on width on bar chart

    - by Dexter Tan
    i have been trying to create a vertical bar chart with a d3 fisheye cartesian distortion with only the x-axis being distorted. I have succeeded in distorting the x position of the vertical bars on mouseover with the following code: var maxMag = d3.max(dataset, function(d) { return d.value[10]; }); var minDate = d3.min(dataset, function(d) { return new Date(d.value[1], d.value[2]-1, d.value[3]).getTime(); }); var maxDate = d3.max(dataset, function(d) { return new Date(d.value[1], d.value[2]-1, d.value[3]).getTime(); }); var yScale = d3.scale.linear().domain([0, maxMag]).range([0, h]); var xScale = d3.fisheye.scale(d3.scale.linear).domain([minDate, maxDate]).range([0, w]).focus(w/2); var bar = svg.append("g") .attr("class", "bars") .selectAll(".bar") .data(dataset) .enter().append("rect") .attr("class", "bar") .attr("y", function(d) { return h - yScale(d.value[10]); }) .attr("width", w/dataset.length) .attr("height", function(d) { return yScale(d.value[10]); }) .attr("fill", function(d) { return (d.value[10] <= 6? "yellow" : "orange" ); }) .call(position); // Positions the bars based on data. function position(bar) { bar.attr("x", function(d) { var date = null; if (d.date != null) { date = d.date; } else { date = new Date(d.value[1],0,1); if (d.value[2] != null) date.setMonth(d.value[2]-1); if (d.value[3] != null) date.setMonth(d.value[3]); d.date = date; } return xScale(date.getTime()); }); } svg.on("mousemove", function() { var mouse = d3.mouse(this); xScale.distortion(2.5).focus(mouse[0]); bar.call(position); }); However at this point, applying fisheye on the width remains a mystery to me. I have tried several methods like using a fisheye scale for width however it does not work as expected. What i wish to do is to have the width of a bar expand on mouseover, the same way a single vertical bar is singled out on mouseover with the cartesian distortion. Any clues or help will be much appreciated! edit: http://dexter.xumx.me to view the visualisation i am talking about for easier understanding!

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  • Address bar in Finder?

    - by wag2639
    I'm used to knowing where all my files are (and I'm anal about it -- I don't need Mr Jobs thinking he knows best about where my files should go). Is there a way to get an address bar to show up in Finder in OSX (10.5+) like in Explorer in Windows or Nautilus in Gnome. Edit: I also want to be able to copy the address bar. Perhaps the workflow is different on a Mac, but I'm use to throughly sorting my files under many layers of folders and then when I need to upload or download something, or access a file in command line or etc, I can copy and paste that directly into the file dialog. To clarify, my goal is to have an experience like in Windows: press Ctrl + D (CMD + L) and Ctrl + C.

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  • Clean way to use mutable implementation of Immutable interfaces for encapsulation

    - by dsollen
    My code is working on some compost relationship which creates a tree structure, class A has many children of type B, which has many children of type C etc. The lowest level class, call it bar, also points to a connected bar class. This effectively makes nearly every object in my domain inter-connected. Immutable objects would be problematic due to the expense of rebuilding almost all of my domain to make a single change to one class. I chose to go with an interface approach. Every object has an Immutable interface which only publishes the getter methods. I have controller objects which constructs the domain objects and thus has reference to the full objects, thus capable of calling the setter methods; but only ever publishes the immutable interface. Any change requested will go through the controller. So something like this: public interface ImmutableFoo{ public Bar getBar(); public Location getLocation(); } public class Foo implements ImmutableFoo{ private Bar bar; private Location location; @Override public Bar getBar(){ return Bar; } public void setBar(Bar bar){ this.bar=bar; } @Override public Location getLocation(){ return Location; } } public class Controller{ Private Map<Location, Foo> fooMap; public ImmutableFoo addBar(Bar bar){ Foo foo=fooMap.get(bar.getLocation()); if(foo!=null) foo.addBar(bar); return foo; } } I felt the basic approach seems sensible, however, when I speak to others they always seem to have trouble envisioning what I'm describing, which leaves me concerned that I may have a larger design issue then I'm aware of. Is it problematic to have domain objects so tightly coupled, or to use the quasi-mutable approach to modifying them? Assuming that the design approach itself isn't inherently flawed the particular discussion which left me wondering about my approach had to do with the presence of business logic in the domain objects. Currently I have my setter methods in the mutable objects do error checking and all other logic required to verify and make a change to the object. It was suggested that this should be pulled out into a service class, which applies all the business logic, to simplify my domain objects. I understand the advantage in mocking/testing and general separation of logic into two classes. However, with a service method/object It seems I loose some of the advantage of polymorphism, I can't override a base class to add in new error checking or business logic. It seems, if my polymorphic classes were complicated enough, I would end up with a service method that has to check a dozen flags to decide what error checking and business logic applies. So, for example, if I wanted to have a childFoo which also had a size field which should be compared to bar before adding par my current approach would look something like this. public class Foo implements ImmutableFoo{ public void addBar(Bar bar){ if(!getLocation().equals(bar.getLocation()) throw new LocationException(); this.bar=bar; } } public interface ImmutableChildFoo extends ImmutableFoo{ public int getSize(); } public ChildFoo extends Foo implements ImmutableChildFoo{ private int size; @Override public int getSize(){ return size; } @Override public void addBar(Bar bar){ if(getSize()<bar.getSize()){ throw new LocationException(); super.addBar(bar); } My colleague was suggesting instead having a service object that looks something like this (over simplified, the 'service' object would likely be more complex). public interface ImmutableFoo{ ///original interface, presumably used in other methods public Location getLocation(); public boolean isChildFoo(); } public interface ImmutableSizedFoo implements ImmutableFoo{ public int getSize(); } public class Foo implements ImmutableSizedFoo{ public Bar bar; @Override public void addBar(Bar bar){ this.bar=bar; } @Override public int getSize(){ //default size if no size is known return 0; } @Override public boolean isChildFoo return false; } } public ChildFoo extends Foo{ private int size; @Override public int getSize(){ return size; } @Override public boolean isChildFoo(); return true; } } public class Controller{ Private Map<Location, Foo> fooMap; public ImmutableSizedFoo addBar(Bar bar){ Foo foo=fooMap.get(bar.getLocation()); service.addBarToFoo(foo, bar); returned foo; } public class Service{ public static void addBarToFoo(Foo foo, Bar bar){ if(foo==null) return; if(!foo.getLocation().equals(bar.getLocation())) throw new LocationException(); if(foo.isChildFoo() && foo.getSize()<bar.getSize()) throw new LocationException(); foo.setBar(bar); } } } Is the recommended approach of using services and inversion of control inherently superior, or superior in certain cases, to overriding methods directly? If so is there a good way to go with the service approach while not loosing the power of polymorphism to override some of the behavior?

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  • Why is my Quicktime plugin transport bar black?

    - by TheDeeno
    For some reason when watching quicktime moves in firefox the transport bar is completely black. I can still use it to fast forward and rewind but I can't actually see any of the buttons. Any clue how to fix this? I've updated to the latest version of quicktime but it didn't help. I've also verified that this behavior is the same in both firefox and chrome.

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