Search Results

Search found 6682 results on 268 pages for 'edge cases'.

Page 171/268 | < Previous Page | 167 168 169 170 171 172 173 174 175 176 177 178  | Next Page >

• Are MongoDB and CouchDB perfect substitutes?

  - by raoulsson

  I haven't got my hands dirty yet with neither CouchDB nor MongoDB but I would like to do so soon... I also have read a bit about both systems and it looks to me like they cover the same cases... Or am I missing a key distinguishing feature? I would like to use a document based storage instead of a traditional RDBMS in my next project. I also need the datastore to handle large binary objects (images and videos) automatically replicate itself to physically separate nodes rendering the need of an additional RDBMS superfluous Are both equally well suited for these requirements? Thanks!

  Read the article

• Ignoring "Content is not allowed in trailing section" SAXException

  - by Paul J. Lucas

  I'm using Java's DocumentBuilder.parse(InputStream) to parse an XML document. Occasionally, I get malformed XML documents in that there is extra junk after the final > that causes a SAXException: Content is not allowed in trailing section. (In the cases I've seen, the junk is simply one or more null bytes.) I don't care what's after the final >. Is there an easy way to parse an entire XML document in Java and have it ignore any trailing junk? Note that by "ignore" I don't simply mean to catch and ignore the exception: I mean to ignore the trailing junk, throw no exception, and to return the Document object since the XML up to an including the final > is valid.

  Read the article

• What to log when an exception occurs?

  - by Rune

  public void EatDinner(string appetizer, string mainCourse, string dessert) { try { // Code } catch (Exception ex) { Logger.Log("Error in EatDinner", ex); return; } } When an exception occurs in a specific method, what should I be logging? I see a lot of the above in the code I work with. In these cases, I always have to talk to the person who experienced the error to find out what they were doing, step through the code, and try to reproduce the error. Is there any best practices or ways I can minimize all this extra work? Should I log the parameters in each method like this? Logger.Log("Params: " + appetizer + "," + mainCourse + "," + dessert, ex); Is there a better way to log the current environment? If I do it this way, will I need to write out all this stuff for each method I have in my application? Are there any best practices concerning scenarios like this?

  Read the article

• How can I notify an application of a programmatically set scrollbar value?

  - by Frerich Raabe

  My code involves standard Scroll Bar control and it happens that I need to change its value programmatically in some cases. I do this using SetScrollInfo function, as in this example: void setScrollBarValue( HWND scrollBar, int value ) { SCROLLINFO si = { sizeof( SCROLLINFO ); } si.fMask = SIF_POS; si.nPos = value; ::SetScrollInfo( scrollBar, SB_CTL, &si, true /* redraw */ ); } This appears to work fine (the thumb of the scrollbar moves around) but it fails to notify the rest of the application of the new scrollbar value. For instance, an edit control which uses the scroll bar (much like in the Windows notepad application) fails to scroll around because it doesn't get notified about the new scrollbar value. In case it matters: the scrollbar I'm modifying is not in the same process as the above setScrollBarValue function. Does anybody know how to achieve this?

  Read the article

• ASP.NET Web API crash MSVCR90.dll

  - by user858931

  I have a web api app developed on VS2010. The application calls an external program to run and it runs just fine if I execute in VS2010. But then when I deploy the web api to IIS 7 and 7.5, in some cases, it crashes. Below is the details I got from Event Viewer/Appliation: Fault bucket , type 0 Event Name: BEX Response: Not available Cab Id: 0 Problem signature: P1: TestProgram.exe P2: 1.0.4728.17141 P3: 50c76dea P4: MSVCR90.dll P5: 9.0.30729.6161 P6: 4dace5b9 P7: 0003024a P8: c0000417 P9: 00000000 P10: Attached files: These files may be available here: C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_InferenceGenerat_95abb43ace91480da6b8f27f9937db667bc58f_7bb1549d Analysis symbol: Rechecking for solution: 0 Report Id: da8f304e-44c0-11e2-b4e8-0026b97a5242 Report Status: 0 Any idea why it happens and how to fix it? Thanks.

  Read the article

• Android Graphics Memory Limits

  - by Gordon

  I am creating an android game using opengl and a cocos2d port (http://code.google.com/p/cocos2d-android-1). I am targeting a wide range of devices and want to ensure that it performs well. I only test on a nexus one and am hoping to get some input from people with experience on slower devices. Currently the game uses two 1024x1024 textures as well as two 256x256 textures. Is this within the limits of most devices? Anyone have any rule of thumb or experience with graphics memory limits in these cases? If gfx memory is exceeded does it page to normal memory?

  Read the article

• Order words by number of letters, then place words neatly

  - by bmaster

  I have a list of words in javascript similar to this: var words = ["mine", "minute", "mist", "mixed", "money", "monkey", "month", "moon", "morning", "mother", "motion", "mountain", "mouth", "move", "much", "muscle", "music", "nail", "name", "narrow", "nation", "natural", "near", "necessary", "neck", "need", "needle", "nerve", "net", "new", "news", "night"]; The words can be 1-25? letters long. I have a div id="words", with a set width of 700px (but I might change it from this). Using css/javascript/jquery, how can I make it: Order the words by number of letters Place the words inside the div tag, left to right, but so that there are no gaps at the right edge of the words div, and there is even spacing between words on a line. Each word should have a border around it and a background. Like this: |reallylongwordssdf shorterwordfdf dfsdfsdfsdf sdfsdfsdf| |sdfsdfsdf sdffsdop sdfjpogs sdfsds dfsdsd dfsdsd dfsdsd| I really have no idea where to begin with this. Perhaps I could manage to write code to order the words by number of letters, but after that, I'd be stuck. Edit: I forgot to add, the words must be links.

  Read the article

• Prevent Erroneous Property Assignment

  - by Gordon

  Porting android applications to iphone applications always gives me the following pattern that I accidentally create: - (void) myFunc:(id)prop { self.property = property; } Which instead should be: - (void) myFunc:(id)prop { self.property = prop; } This always causes my program to quietly break because property gets reset to its existing value rather than being set to the new value, 'prop'. I cannot name the parameter 'prop' to 'property' since the compile complains that the parameter masks the instance variables visibility. Is there a good way to avoid this situation? There are no compiler warnings. Is there a way to make xcode prevent this? I cannot see very many situations where you would set a property to the value of its underlying instance variable (maybe to trigger a KVO binding?), but I don't see myself doing that in majority of cases. I understand the above code is synthetic and should be done with @synthesize, but I am just using it as a simplified example to illustrate my point.

  Read the article

• Is it possible to retrieve only a single property from a CSS class?

  - by werner5471

  Example CSS File: .testClass { color: black; background: red; } Now in an HTML file, I would like to have something like <span class="testClass:color">Text in black but without red background</span> to only apply the color property of that class. Is there a way to do this? The purpose behind it (for people asking themselves "Why the hell would he want that, that's not clean CSS usage!") is that I use jQuery UI themes, and I would like the entire page to fit a theme upon change. As not all kinds of elements (e.g. the color of a link) are covered by those themes, in those cases I would like to "steal" the color property (but not more) of some other CSS class of the jQuery UI theme. If there is another way to do this, of course I'm glad to hear it as well!

  Read the article

• Generate (in R) a matrix of all possible outcomes for throwing n dice (ignoring order)

  - by Brani

  In cases where order does matter, it's rather easy to generate the matrix of all possible outcomes. One way for doing this is using expand.grid as shown here. What if it doesn't? If I'm right, the number of possible combinations is (S+N-1)!/S!(N-1)!, where S is the number of dice, each with N sides numbered 1 through N. (It is different from the well known combinations formula because it is possible for the same number to appear on more than one dice). For example, when throwing four six-sided dice, N=6 and S=4, so the number of possible combinations is (4+6-1)!/4!(6-1)! = 9!/4!x5! = 126. How can I generate a matrix of these 126 possible outcomes? Thank you.

  Read the article

• Positioning objects in views during re-orientation in iPad

  - by Arni

  iPad Gurus: Apple wants us to support all orientations. I take that to mean that a particular layout should either rotate so that all objects are positioned relatively the same OR, if that doesn't look good, then they ought to be repositioned, OR two views ought to be designed and built. If I rely on the built-in rotation mechanism, the objects either get resized or they straddle the edge of the page in one orientation or the other, or they disappear from view altogether. I can't seem to find the right settings to get the objects to align clearly so they are seen in each orientation. Repositioning leads to a lot of if statements in the View Controller. So I don't think Apple had that in mind. I tried replacing views and even view controllers in "willRotateToInterfaceOrientation" method, but that either causes crashes or the portrait views end up in landscape unexpectedly and vv. Moreover, two view controllers means double the coding for the same view. There must be proper way to handle orientation changes, but I have searched the internet and documentation and sample code in vain for something that works. How is this done properly? Thanks!

  Read the article

• Arguments against Create or Update

  - by Nix

  Recently someone stated that they thought all Creates should be CreateOrUpdates. Instinctively i thought bad, but now I am trying to find out if I have any grounds. Situation interface IService{ void Create(Object a); void Update(Object a); } or interface IService{ void CreateOrUpdate(Object a); } My first thought is if you implemented everything CreateOrUpdate then you have no control if someone accidentally sends you wrong data, or concurrency issues where someone changes a "primary" field right before you call update.... But if you remove those cases, are there any other cons?

  Read the article

• hierarchical data from self referencing table in tree form

  - by Beta033

  It looks like this has been asked and answered in all the simple cases, excluding the one that I'm having trouble with. I've tried using a recursive CTE to generate this; however maybe a cursor would be better? Or maybe a set of recursive functions will do the trick? Can this be done in a cte? consider the following table PrimaryKey ParentKey 1 NULL 2 1 3 6 4 7 5 2 6 1 7 NULL should yield PK 1 -2 --5 -6 --3 7 -4 where the number of - marks equal the depth, my primary difficulty is the ordering.

  Read the article

• Client Profile Application prerequisites

  - by Carlo

  One last question about Client Profile installation. I downloaded the Microsoft .NET Framework Client Profile Online Installer because we want to put it in the installation CD because our end user might not have either .net framework 3.5 or internet. So we want to be able to handle both cases. In the prerequisites I'm able to select the location of where the file will be, but I don't know where it should be. I want to be able to somehow put the path of the cd, something like d:\ProductName\Prerequisites\DotNetFx35ClientSetup.exe so it can get it and install it from there. Does anyone have an idea of how this can be achieved? Thank you. Here's the prerequisites window:

  Read the article

• Connecting to TFS via ASP.NET, jQuery and Phonegap

  - by Tony D.

  I want to develop a mobile application that would allow the user the ability to run a suite of automated test cases housed in TFS. This is something I thought of this morning so it's all still very preliminary. But I'm curious as to what would be the best route for something like this? Or if it's even possible? Because the mobile devices from the users will vary from iphones to droids, I would probably want to incorporate something like Phonegap for it's cross platform capabilities. My initial thought was to develop in ASP.net/C# (which would be stored on a remote server), and have jQuery make calls to that server. Not sure if that would be the most appropriate way of handling this. I'm not too familiar with JSON but I have seen it as a suggestion on various sites to handle the returned data. Any thoughts or suggestions are appreciated. Thanks.

  Read the article

• Generate a matrix of all possible outcomes for throwing n dice (ignoring order)

  - by Brani

  In cases where order does matter, it's rather easy to generate the matrix of all possible outcomes. One way for doing this is using expand.grid as shown here. What if it doesn't? If I'm right, the number of possible combinations is (S+N-1)!/S!(N-1)!, where S is the number of dice, each with N sides numbered 1 through N. (It is different from the well known combinations formula because it is possible for the same number to appear on more than one dice). For example, when throwing four six-sided dice, N=6 and S=4, so the number of possible combinations is (4+6-1)!/4!(6-1)! = 9!/4!x5! = 126. How can I generate a matrix of these 126 possible outcomes? Thank you.

  Read the article

• Centering Divisions Around Zero

  - by Mark

  I'm trying to create something that sort of resembles a histogram. I'm trying to create buckets from an array. Suppose I have a random array doubles between -10 and 10; this is very simplified. I then want to specify a center point, in this case 0 and the number of buckets. If I want 4 buckets the division would be -10 to -5, -5 to 0, 0 to 5 and 5 to 10. Not that complicated right. Now if I change the min and max to -12 and -9 and as for 4 divisions its more complicated. I either want a division at -3 and 3; it is centered around 0 ; or one at -6 to 0 and 0 to 6. Its not that hard to find the division size = Math.Ceiling((Abs(Max) + Abs(Min)) / Divisions) Then you would basically have an if statement to determine whether you want it centered on 0 or on an edge. You then iterate out from either 0 or DivisionSize/2 depending on the situation. You may not ALWAYS end up with the specified number of divisions but it will be close. Then you iterate through the array and increment the bin count. Does this seem like a good way to go about this? This method would surely work but it does not seem to be the most elegant. I'm curious as to whether the creation of the bins and the counting from the list could be done in a clever class with linq in a more elegant way? Something like creating the bins and then having each bin be a property {get;} that returns list.Count(x=> x >= Lower && x < Upper).

  Read the article

• Is catching NumberFormatException a bad practice?

  - by integeruser

  I have to parse a String that can assume hex values or other non-hex values 0xff, 0x31 or A, PC, label, and so on. I use this code to divide the two cases: String input = readInput(); try { int hex = Integer.decode(input); // use hex ... } catch (NumberFormatException e) { // input is not a hex, continue parsing } Can this code be considered "ugly" or difficult to read? Are there other (maybe more elegant) solutions? EDIT : I want to clarify that (in my case) a wrong input doesn't exist: i just need to distinguish if it is a hex number, or not. And just for completeness, i'm making a simple assebler for DCPU-16.

  Read the article

• using JDBC with persistence.xml

  - by moshe shamy

  I am building a framework that manage the access to the database. the framework getting tasks from the user and handle a connection pooling that manage the access to the database. the user just send me SQL commands. One of the feature that i would like to support is working with JPA, in this case i will provide entity manager. in some cases i would like to provide JDBC access as well as JPA access. the arguments for the database are written in XML file. so for JPA i need to write the property in persistence.xml so it will be not so smart to write again the same arguments for JDBC. do you know if i can get the arguments of the database from persistence.xml, do you know if there is a source code that do it. or should i parse persistence.xml by myself?

  Read the article

• Is there a file diff tool that allows for exceptions?

  - by Kevin

  We currently use Beyond Compare 3.0 and I am quite pleased with it. However, it would be great if I could easily specify an exclusion for a specific one-time case. This is needed when I am doing a code review of some refactoring. For instance: Old code doSomething(ConstantsInterface.FOOBAR); New code: doSomething(BetterEnumeration.FOOBAR); In this case, I have hundreds of changes that I am reviewing that are essentially all the same exact change and I just want to see the exceptions. It would be great if I could easily specify an exception that indicates these two cases are equal. I know of a way to do it in the grammar, but it is tedious and cumbersome in the case where there are ten or so exceptions. Any other tips?

  Read the article

• Running Firefox in the Windows service mode

  - by Leonid

  I'm writing a server running as a Windows service that by request invokes Firefox to generate a pdf snapshot of a webpage. I know it is a bad idea to run a GUI program in service mode, but the server nature of my program restricts from running it in the user mode. Running a user-level 'proxy' also is not an option, since there might be no interactive user logged-in on the machine with the server running. In my experiments Firefox successfully produced pdf when the service was running under a user account that was already logged-in. Obviously it didn't work in other cases: for Local System and user accounts that weren't logged-in. Under LocalSystem with 'Allow service to interact with desktop' option enabled I could see the Firefox started that reports that it's unable to find a printer. Since it wouldn't be practical to require an opened user session for the pdf server to run, is there any workaround for this except running the whole thing from a virtual machine?

  Read the article

• Is it good practice to initialize array in C/C++?

  - by sand

  I recently encountered a case where I need to compare two files (golden and expected) for verification of test results and even though the data written to both the files were same, the files does not match. On further investigation, I found that there is a structure which contains some integers and a char array of 64 bytes, and not all the bytes of char array were getting used in most of the cases and unused fields from the array contain random data and that was causing the mismatch. This brought me ask the question whether it is good practice to initialize the array in C/C++ as well, as it is done in Java?

  Read the article

• Setting baseurl in cakephp

  - by Aruna

  Hi, I am working on an appliication which is running in cakephp and i am using ajax query inbetween. In all the cases for all the ajax post i have used the url as var ht = $.ajax({ type: "GET", url: "http://172.20.52.99/FormBuilder/index.php/forms/viewChoices/"+attribute_id, async: false }).responseText; var myObject = eval('(' + ht + ')'); is there any way in cakephp where i can give my base url as http://172.20.52.99/FormBuilder/index.php/ and to call the baseurl in all the places i want. Please give some suggestions . Thank you..

  Read the article

• Solr match all aka *:* does not work

  - by Karussell

  Don't know what I did wrong. I have two indices with identical documents in it. The local index was replicated from a master which responds correctly, so the same solrconfig.xml and schema.xml file. But if I query the index on my local machine with *:* I get 0 docs. (other queries on my local machine are working correct) I tried jetty and tomcat for the local index. no success. The *:* behaviour is crucial for me, because some test cases are failing now. Do you have an idea what could be wrong?

  Read the article

• overwriting arguments in t-sql functions

  - by chuck taylor

  I was playing around with some code and realized that it is possible to overwrite the argument to a t-sql function. i.e., create function someFn(@date date) as begin if @date is null set @date = getdate() will set @date to be today's date if the argument was null. This appears only to make any sense if t-sql is treating their arguments as references not values. I realized that I don't actually know what the t-sql rules are for cases like this and was hoping someone could elaborate what is going on here. (I don't ever recall seeing any value vs. reference discussion with respect to t-sql code for that matter actually..)

  Read the article

< Previous Page | 167 168 169 170 171 172 173 174 175 176 177 178  | Next Page >