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  • a design to avoid circular reference in this scenario

    - by BDotA
    Here is our dependency tree: BigApp - Child Apps - Libraries ALL of our components are HEAVILY using one of the Libraries as above ( LibA). But it has a ‘few’ public methods that require classes from ‘higher-level’ assemblies and we want to avoid CIRCULAR references. What do you propose as a good design for this?

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  • Does it make any sense to develop for iPhone OS 3.0 instead of 3.2?

    - by mystify
    When it comes to backwards-compatibility, I want to stick to iPhone OS 3.0 so also some of the poor iPod Touch users who aren't rich enough for iPhones use my apps. But iPhone OS 3.2 has some pretty cool features that would be nice to have. Problematic thing: Since it's just a minor upgrade, I can imagine most iPod Touch users who decided to upgrade to 3.0 probably never upgraded to 3.2. I'm not sure if Apple actually asked them to pay like 10 bucks for going from 3.0 to 3.2. However, if Apple did ask them for money, I'm sure like 90% of all iPod Touch users didn't upgrade. So the big question is: IF you decide to go with iPhone OS 3.0, is it a stupid idea to stick to 3.2 just because of a few more features? Will this effectively kill half of your iPod Touch userbase?

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  • Trouble converting string/character to byte in lisp

    - by WanderingPhd
    I've some data that I'm reading in using read-line and I want to convert it into a byte-array. babel:string-to-octet works for the most part except when the character\byte is larger (above 200) in which case it returns two numbers. As an example, if the character is ú using babel:string-to-octet returns (195 185) instead of 250 which is what I'm looking for. I tried a number of encodings in babel but none of them seem to work. If I use read-byte or read-sequence it does read in 250. But for reasons of backward compatibility, I'm left with using read-line and I would like to know if there is something I'm missing when using babel:string-to-octet to convert ú to 250. I'm using ccl 1.8 btw.

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  • Code Review: CLR RegexSubstring

    - by OMG Ponies
    Could this be better? .NET 2.0 compatibility for SQL Server 2005: public static SqlString RegexSubstring(SqlString regexpattern, SqlString sourcetext, SqlInt32 start_position) { SqlString result = null; if (!regexpattern.IsNull && !sourcetext.IsNull && !start_position.IsNull) { int start_location = (int)start_position >= 0 ? (int)start_position : 0; Regex RegexInstance = new Regex(regexpattern.ToString()); result = new SqlString(RegexInstance.Match(sourcetext.ToString(), (int)start_position).Value); } return result; }

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  • Restricting access to a subdirectory on linux

    - by David
    I'm looking for a way to make a directory accessible only to its parent directories. That is, suppose you have two directories, A and B, at the same level in the file hierarchy. Now suppose that you have a directory A' which is a subdirectory of A. I'd like to enforce that A is able to access the contents of A' but B is not.

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  • VB6 lives forever like Cobol

    - by Kb
    In the last 3-5 years I have been renewing an insurance application and a commmercial integration toolkit based on vb6. According to Microsoft's "It just works policy" the IDE is no longer supported after april 8th 2008 It still works to develop and deploy vb 6 apps. The question is: When will it be impossible to support vb6 applications, or will they live forever like Cobol applications do? Update: Microsoft statement march 2010: The Visual Basic team is committed to “It Just Works” compatibility for Visual Basic 6.0 applications on Windows Vista, Windows Server 2008 including R2, and Windows 7.

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  • Wanted: Good examples of Scala database persistence

    - by Rydell
    I'm would like to use Scala to persist data to a relational database, so what I am looking for are examples of CRUD operations using Scala. I would like to code on a lower level of abstraction than an ORM like Hibernate/Toplink (read:JDBC), but between us, I would like to see examples of all types. Thanks folks.

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  • working with android intents how to pass arguments between father and the intent h in

    - by yoavstr
    assuming i want to open another activity from my current activty and i want to pass her arguments such as in my case diffculty level how i do it?... newGameButton.setOnClickListener(new OnClickListener() { public void onClick(View view) { Intent i = new Intent(countryCityGameMenu.this,GameScreen.class); startActivityForResult(i, GlobalDataStore.STATIC_INTEGER_VALUE); } }); is there a way to pass those arguments in the calling ?... thankx

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  • When to use new layouts and when to use new activities?

    - by cmdfrg
    I'm making a game in Android and I'm trying to add a set of menu screens. Each screen takes up the whole display and has various transitions available to other screens. As a rough summary, the menu screens are: Start screen Difficult select screen Game screen. Pause screen. Game over screen. And there are several different ways you can transition between screen: 1 - 2 2 - 3 3 - 4 (pause game) 4 - 1 (exit game) 4 - 3 (resume game) 3 - 5 (game ends) Obviously, I need some stored state when moving between screens, such as the difficulty level select when starting a game and what the player's score is when the game over screen is shown. Can anyone give me some advice for the easiest way to implement the above screens and transitions in Android? All the create/destroy/pause/resume methods make me nervous about writing brittle code if I'm not careful. I'm not fond of using an Activity for each screen. It seems too heavy weight, having to pass data around using intents seems like a real pain and each screen isn't a useful module by itself. As the "back" button doesn't always go back to the previous screen either, my menu layout doesn't seem to fit the activity model well. At the moment, I'm representing each screen as an XML layout file and I have one activity. I set the different buttons on each layout to call setContentView to update the screen the main activity is showing (e.g. the pause button changes the layout to the pause screen). The activity holds onto all the state needed (e.g. the current difficulty level and the game high score), which makes it easy to share data between screens. This seems roughly similar to the LunarLander sample, except I'm using multiple screens. Does what I have at the moment sound OK or am I not doing things the typical Android way? Is there a class I can use (e.g. something like ViewFlipper) that could make my life easier? By the way, my game screen is implemented as a SurfaceView that stores the game state. I need the state in this view to persist between calls to setContentView (e.g. to resume from paused). Is the right idea to create the game view when the activity starts, keep a reference to it and then use this reference with setContentView whenever I want the game screen to appear?

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  • At What point should you understand References?

    - by Vaccano
    I asked a question like this in an interview for a entry level programmer: var instance1 = new myObject{Value = "hello"} var instance2 = instance1; instance1.Value = "bye"; Console.WriteLine(instance1.Value); Console.WriteLine(instance2.Value); The applicant responded with "hello", "bye" as the output. Some of my co-workers said that "pointers" are not that important anymore or that this question is not a real judge of ability. Are they right?

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  • Python - Why ever use SHA1 when SHA512 is more secure?

    - by orokusaki
    I don't mean for this to be a debate, but I'm trying to understand the technical rationale behind why so many apps use SHA1, when SHA512 is more secure. Perhaps it's simply for backwards compatibility. Besides the obvious larger size (128 chars vs 40), or slight speed differences, is there any other reason why folks use the former? Also, SHA-1 I believe was first cracked by a VCR's processor years ago. Has anyone cracked 512 yet (perhaps with a leaf blower), or is it still safe to use without salting?

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  • Lambda Expressions for a 5th Grader

    - by Randy Minder
    If you had to explain Lambda expressions to a 5th grader, how would you do it? And what examples might you give, or resources might you point them to? I may be finding myself in the position of having to teach this to 5th grade level developers and could use some assistance. Thanks very much.

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  • Find all substrings between two strings

    - by Orsol
    I need to get all substrings from string. For ex: StringParser.GetSubstrings("[start]aaaaaa[end] wwwww [start]cccccc[end]", "[start]", "[end]"); that returns 2 string "aaaaaa" and "cccccc" Suppose we have only one level of nesting. Not sure about regexp, but I think it will be userful.

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  • GWT + XML documents with namespaces

    - by chris_l
    I'd like to get a quick overview of available solutions (libraries, ...) that allow me to work with XML documents with namespaces on a DOM level - in GWT's client side. Additionally, I'm looking for an XPath solution that can work on that DOM (even if it requires writing my own XPath Navigator). XML parsing and serialization isn't necessary on the client - this can be done on the server.

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  • JavaScript date comparisons

    - by Kyle
    I am new to the lower level useful functions of JavaScript, and I find myself needing to compare two date objects, but within an hourly range. For example, if Date1 is less then two hours until (or from) Date2. How could this be done?

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  • Image-free, custom-styled search bar

    - by Jon
    I'm working with the designer and he sent me the following design for the search bar on our webpage: I'm very much against using images in webpage design unless completely necessary, so I'm hoping that I can recreate the whole search bar widget in CSS. I know how to do border-radius, gradients, box-shadows, etc, so that's not a problem. Question: Assuming CSS3 browser compatibility, how can I go about recreating the actual search button (the magnifying glass portion) with the double curved edge, and the slight drop shadow on the bottom left? Thoughts: My initial feeling was that the search button would be circular and free-standing, then overlap the search input div with a negative left-margin, but then I was unsure how I would get that drop shadow. Edit: I'm not completely opposed to using an image for the magnifying glass, but I've seen a similar icon created in CSS before. Would an image vs. pure CSS end up loading at the same speed, or should I do all I can do in pure CSS?

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  • Detect if a method was overridden using Reflection (C#)

    - by Andrey
    Say I have a base class TestBase where I define a vistual method TestMe() class TestBase { public virtual bool TestMe() { } } Now I inherit this class: class Test1 : TestBase { public override bool TestMe() {} } Now, using Reflection, I need to find if the method TestMe has been overriden in child class - is it possible? What I need it for - I am writing a designer visualizer for type "object" to show the whole hierarchy of inheritance and also show which virtual methods were overridden at which level.

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  • PowerShell; Use Get-Member to Self Document Nested COM Object

    - by Zion
    Anyone know how to use Get-Member to Recursively dump to a text file The entire properties|methods tree of a COM object? (The Output formatting of Get-Object is fine) Instead of giving me only the top level as in this example; New-Object -com AutoItX3.Control | Get-Member I need it to recurse the entire object to return results. If This is not possible, how would I dump the methods/properties of a sub object?

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