Search Results

Search found 22300 results on 892 pages for 'half bit'.

Page 623/892 | < Previous Page | 619 620 621 622 623 624 625 626 627 628 629 630  | Next Page >

• Info on Seam's EntityQuery?

  - by Shadowman

  I've been working with Seam and JPA/Hibernate for quite some time, but have just started looking at making use of the EntityHome and EntityQuery classes more. EntityHome seems relatively straightforward in terms of what it is and how I can leverage it. But, EntityQuery is a bit less clear. I understand the ability to grab, for example, a list containing all of a given entity. However, I've also seen some examples using a RESTRICTIONS array. How exactly is this used? Are the OR conditions or AND conditions? Can anyone give me some more detailed information as to how EntityQuery is intended to be used? I've checked the few books I have on Seam and JPA, but none of them really reference the EntityQuery classes. It seems like I very useful mechanism, and I'd like to get some more use out of them if I can. Thanks!

  Read the article

• Removing the last character of a string IF it is $variable

  - by KeenLearner

  Hi there, I've made a little script to convert titles into url friendly things. ie: 'I am a title' becomes 'I_am_a_title' My script basically goes through and turns spaces, apostrophes, commas etc etc into an underscore. The problem is, sometimes my url's end up like this: 'i_am_a_title_' with a trailing underscore... So i figure, add a little bit to go through and search to see if the last character is an underscore on the final result, and if it is, then swap it. I looked into the strrchr() function but I seem to be hitting a wall of my own understanding. How is this sort of thing accomplished?

  Read the article

• how to start writing a very simple programming language

  - by Rex Homming

  Recently, I was going around looking for ideas on what I can build using C this summer and I came across this post: http://stackoverflow.com/questions/1257376/interesting-project-to-learn-c Implement a programming language. This doesn't have to be terribly hard - I did the language that must not be named - but it will force you to learn a lot of the important parts of C. If you don't want to write a lexer and/or parser yourself, you can use lex/flex and yacc/bison, but if you plan on that you might want to start with a somewhat smaller project. I was kinda intrigued about the implementing a programming language answer and I'm wondering how do I go about starting this? I've gone through the whole K&R book and I've done some of the exercises as well. I also have a bit of experience in C++ and Java if that matters. Any tips? Thanks!

  Read the article

• How to use a Visual C++ .Net String type as argument in a function

  - by stefangachter

  Probably this is not a difficult question, but I am always a little bit confused on how to treat String type as an argument in Visual C++. I have the following to functions: void function_1(String ^str_1) { str_1 = gcnew String("Test"); } void function_2() { String ^str_2 = nullptr; function_1(str_2); } After calling function_1, str_2 is still equal to null, but what I want to achieve is that str_2 is equal to Test. So, how can I achieve that the content of str_1 is passed to function_2? Thanks for any advice.

  Read the article

• DirectX text at (x,y,z)

  - by bobobobo

  In OpenGL, you can actually draw text with an XYZ position, and it will appear at that location, but in a fixed size. If anyone's played MechWarrior 2, they used it there for nav points. The text had a 3d position, but it always appeared a fixed size. The nav point was actually a bit of text at that exact point in space. Other than that the ability to place 3d text was pretty much useless.. you'd always want text to be 2d, righT? I'm finally in a position where I want this feature. I have these points in space that I need to assign text information to, i.e. I need to draw text at a fixed size but with a 3d position. Can this be done from DirectX?

  Read the article

• conceptually different entities with a few similar properties should be stored in one table or more?

  - by Haghpanah

  Assume A and B are conceptually different entities that have a few similar properties and of course their own specific properties. In database design, should I put those two entities in one big aggregated table or two respectively designed tables. For instance, I have two types of payment; Online-payment and Manual-payment with following definition, TABLE [OnlinePayments] ( [ID] [uniqueidentifier], [UserID] [uniqueidentifier], [TrackingCode] [nvarchar](32), [ReferingCode] [nvarchar](32), [BankingAccID] [uniqueidentifier], [Status] [int], [Amount] [money], [Comments] [nvarchar](768), [CreatedAt] [datetime], [ShopingCartID] [uniqueidentifier], ) And TABLE [ManualPayments] ( [ID] [uniqueidentifier], [UserID] [uniqueidentifier], [BankingAccID] [uniqueidentifier], [BankingOrgID] [uniqueidentifier], [BranchName] [nvarchar](64), [BranchCode] [nvarchar](16), [Amount] [money], [SlipNumber] [nvarchar](64), [SlipImage] [image], [PaidAt] [datetime], [Comments] [nvarchar](768), [CreatedAt] [datetime], [IsApproved] [bit], [ApprovedByID] [uniqueidentifier], ) One of my friends told me that creating two distinct tables for such similar entities is not a well design method and they should be put in one single table for the sake of performance and ease of data manipulations. I’m now wondering what to do? What is the best practice in such a case?

  Read the article

• In .NET, How to obtain the target of a symbolic link (or Reparse Point)?

  - by Cheeso

  In .NET, I think I can determine if a file is a symbolic link by calling System.IO.File.GetAttributes(), and checking for the ReparsePoint bit. like so: var a = System.IO.File.GetAttributes(fileName); if ((a & FileAttributes.ReparsePoint) != 0) { // it's a symlink } How can I obtain the target of the symbolic link, in this case? ps: I know how to create a symbolic link. It requires P/Invoke: [Interop.DllImport("kernel32.dll", EntryPoint="CreateSymbolicLinkW", CharSet=Interop.CharSet.Unicode)] public static extern int CreateSymbolicLink(string lpSymlinkFileName, string lpTargetFileName, int dwFlags);

  Read the article

• What is the Fastest Java/PHP Bridge?

  - by The Rook

  A bi-directional communication is required between a Java application and a PHP web app. A Fast and low Resource consumption is the number 1 priority in this project There is the PHP/Java Brdige(PJB) project and there are benchmarks to show that is very fast. Do you know of a faster approach? xml over http strikes me as a bit wasteful, but I don't know of a better approach. Ideally this system would be a remote connection, but due to time constraints it might have to be local. Do you know of a fastest way to accomplish this bi-directional connection?

  Read the article

• PODS + WP Theme

  - by Sharath

  So I managed to setup pods and create my custom tables. Now I want to revamp my theme so that it pulls data from the POD table. Doesn't seem to be working... This is what I did.. I have a Pod called 'project_type' with a name (string) and a code (string) field. Have also added 3 entries via the admin system. I made a copy of the default wordpress plugin and renamed it to myTheme and activated it. Inside index.php of myTheme, I removed all the default code.. and have just the POD specific code as shown below. <?php echo "Hello World"; $p = new Pod('project_type'); echo $p->getTotalRows(); ?> However, when I reload my page, only Hello World shows up? A bit new to Wordpress so kindly advice.

  Read the article

• Need help searching a MySQL db using a SELECT DISTINCT result

  - by user1695645

  So I am new to MySQL and am having a bit of trouble. I have one table called book_genres and another called books. book_genres +-------+---------+ |book_id| genre | +-------+---------+ | 1 | Horror | | 1 | Comedy | | 2 | Romance | | 2 | Comedy | +-------+---------+ books +-------+---------+ |book_id| title | +-------+---------+ | 1 | A Book | | 2 | B Book | | 3 | C Book | +-------+---------+ I am using the following command to pull all the book_ids that have 3 selected genres: SELECT DISTINCT a.book_id, b.genre AS genre1, c.genre AS genre2, d.genre AS genre3 FROM book_genres a JOIN book_genres b ON a.book_id = b.book_id AND b.genre LIKE 'Romance' JOIN book_genres c ON a.book_id = c.book_id AND c.genre LIKE 'Action' JOIN book_genres d ON a.book_id = d.book_id AND d.genre LIKE 'Comedy' GROUP BY book_id What I want to do is now pull all of the book titles from the books table using the book_ids found in this search. I'm not sure if there is an easier way to do this or not, but this was all that I could come up with. Thank you for anyone who can help!

  Read the article

• two classes contain objects of each other

  - by Julz

  hi, i hope there's a simple answer to this. without getting too complicated i have two classes. an "Animal" and a "Cell" Cell contains an Animal as a member. Animal has methods that accept Cells in their parameters. i'm just confused as to how i #include each class the others header? i've only ever had to go up a chain of classes and just included the last class header in the next and so on, but this circular situation has me a bit lost. i hope that makes sense, any help greatly appreciated.

  Read the article

• Delphi: How to localize description for a menu shortcut?

  - by Ulrich Gerhardt

  Is there a way to get a localized description of a shortcut like Ctrl+Z so that I get "Ctrl+Z" if the app runs on an English system and "Strg+Z" on a German system? The VCL function ShortCutToText isn't internationalized. The API function GetKeyNameText is a bit better but still not perfect: If one switches the regional settings of a German XP to English (US), it still produces German texts. Besides the results are in CAPITALS which is ugly. Clarification: I know how I can replace ShortCutToText or the Smkc* resource strings with customized versions. But to use that I need the translated strings. And I would like to get these from the OS (or similar). Update: It looks like Microsoft expects developers to do the translation on their own - see 2. in Associating a Menu Item with an Accelerator Key.

  Read the article

• Design patter for extending Android's activities?

  - by Carl

  While programming on Android, I end up writing a parent activity which is extended by several others. A bit like ListActivity. My parent activity extends Activity. if I intend to use a Map or a List, I can't use my parent activity as superclass - the child activity can only extend one activity obviously. As such I end up writing my parent activities with the same logic for Activity, ListActivity, MapActivity and so forth. What am I looking for is some sort of trait functionality/design pattern which would help in this case. Any suggestions?

  Read the article

• Make text appear briefly in a JPanel

  - by Roo

  Hi, I am trying to make text appear briefly before it disappears. It would be along the lines of 1) Set color to black 2) wait x amount of seconds 3) set color to background color The method I call is repaint(), which then calls paintComponent(Graphics painter). repaint() is called only if I press the space-bar. I thought of trying repaint();Thread.sleep(1000);repaint(); (I do catch the Interrupt exception, just not shown), but it only calls paintComponent once per space-bar . Is there an easy way to do this or is this something that is a bit challenging?

  Read the article

• Applying transformations to NSBitmapImageRep

  - by Adam

  So ... I have an image loaded into an NSBitmapImageRep object, so I am able to examine the contents of specific pixels via a two dimensional array. Now I want to apply a couple of "transformations" to the image, in preparation for some additional processing. If I was manipulating the image manually, in Photoshop, I would: Rotate the image Crop a portion of it and discard the rest Apply a "threshold" transformation (which essentially converts the image to black and white, based on the threshold value I provide) Resample the image to shrink it down a bit (which, although losing some image quality, will speed up the subsequent processing) (not necessarily in that order) Are there objective C methods available to facilitate these specific image manipulations, with the data in the NSBitmapImageRep object? If so, can someone point me to some good examples?

  Read the article

• Form Arrays support across browsers

  - by Stomped

  I'm not even sure if form arrays is the proper term, but it looks a bit like this: <input name='element[]' type='text' /> <input name='element[]' type='text' /> Which is then retrieved in PHP as an array stored in $_POST['element'] -- in this case with 2 values. I've tested it in the browsers I have available to me, but I've never seen this before and I'm wondering is this supported pretty much in all browsers? Or is this something very old that I've just not run into? Thanks!

  Read the article

• Repository, Service or Domain object - where does logic belong?

  - by betitall

  Take this simple, contrived example: UserRepository.GetAllUsers(); UserRepository.GetUserById(); Inevitably, I will have more complex "queries", such as: //returns users where active=true, deleted=false, and confirmed = true GetActiveUsers(); I'm having trouble determining where the responsibility of the repository ends. GetActiveUsers() represents a simple "query". Does it belong in the repository? How about something that involves a bit of logic, such as: //activate the user, set the activationCode to "used", etc. ActivateUser(string activationCode);

  Read the article

• store in a variable only the first or only the second class of an element

  - by shecky

  I'm using this bit of jQ to add a class to two different elements based on the class of another (parent/grandparent, etc) element: $(document).ready(function(){ var containerClass = $('#main-content').attr('class'); $('#nav-primary li#'+containerClass).addClass('active'); $('#aux-left div[id$='+containerClass+']').addClass('active'); }); Brilliant, but I have two problems with it: First, when there's no class at all in <div id="main-content">, the 'active' class is added to all the #nav-primary LIs, and also to all the #aux-left DIVs; how can I modify this so that in the absence of any class on #main-content, do nothing? Second, how can I target only the first or second of multiple classes to store in the 'containerClass' variable, e.g., <div id="main-content" class="apples bananas">? Very much appreciated! svs

  Read the article

• SQL Database dilemma : Optimize for Querying or Writing?

  - by Harry

  I'm working on a personal project (Search engine) and have a bit of a dilemma. At the moment it is optimized for writing data to the search index and significantly slow for search queries. The DTA (Database Engine Tuning Adviser) recommends adding a couple of Indexed views inorder to speed up search queries. But this is to the detriment of writing new data to the DB. It seems I can't have one without the other! This is obviously not a new problem. What is a good strategy for this issue?

  Read the article

• Oracle SQL: Multiple Subqueries Unioned Without Running Original Query Multiple Times.

  - by Bob

  So I've got a very large database, and need to work on a subset ~1% of the data to dump into an excel spreadsheet to make a graph. Ideally, I could select out the subset of data and then run multiple select queries on that, which are then UNION'ed together. Is this even possible? I can't seem to find anyone else trying to do this and would improve the performance of my current query quite a bit. Right now I have something like this: SELECT ( SELECT ( SELECT( long list of requirements ) UNION SELECT( slightly different long list of requirements ) ) ) and it would be nice if i could group the commonalities of the two long requirements and have simple differences between the two select statements being unioned.

  Read the article

• How to setup Math program

  - by Miles

  I'm needing to write a program (C#) that will allow the user to create generic formulas with variables and numbers. For example: D = A + (A - C / X)(7.8 - 6.6) F = E + (E - C / X)(7.8 - 6.6) FinalResult = (A + D)(0.9) + (E + F)(0.32) + B(0.1) + .023 where all variables would mean for me to go to a database and look something up based on values and return a number in its place. So A would be 2.12 for example (and the same for C and E) Whats the best way to structure this program? How would I make my program read these formulas? I've seen a little bit of the MathML but not sure how to get that started (or an example of it)

  Read the article

• Is it a good idea to apply some basic macros to simplify code in a large project?

  - by DoctorT

  I've been working on a foundational c++ library for some time now, and there are a variety of ideas I've had that could really simplify the code writing and managing process. One of these is the concept of introducing some macros to help simplify statements that appear very often, but are a bit more complicated than should be necessary. For example, I've come up with this basic macro to simplify the most common type of for loop: #define loop(v,n) for(unsigned long v=0; v<n; ++v) This would enable you to replace those clunky for loops you see so much of: for (int i = 0, i < max_things; i++) With something much easier to write, and even slightly more efficient: loop (i, max_things) Is it a good idea to use conventions like this? Are there any problems you might run into with different types of compilers? Would it just be too confusing for someone unfamiliar with the macro(s)?

  Read the article

• dbpedia /flash how to?

  - by user348174

  I am interested in visualising data from dbpedia in flash but I am a little out of my depth technically... I know a bit of actionscript, javascript and some php but I'm not familiar with SPARQL or java. The documentation I can find on it is a little over my head. I have a couple of questions before I totally ruling it out: • Has anyone come across an example/tutorial for accessing dbpedia data through flash? • Im a little hazy on how you work with dbpedia. Do you download the entire database or can you connect to a database on their server? Any advice would be appreciated. Thanks

  Read the article

• .NET Runtime Object Browser.

  - by user290907

  Is there a framework which can be used in your application, to make it expose internal objects on some port for inspection. for.e.g. after i start my application in this case a GUI Application, and then say launch http://localhost:9100 then it should show me the statistics of the app. I played a bit with HttpListener accepting connections and then outputting raw HTML, it works fine for simple tasks, but there is too much worked involved if i have make a proper object browser. Thanks in Advance.

  Read the article

• How should I do this (business logic) in Sql Server? A constraint?

  - by Pure.Krome

  Hi folks, I wish to add some type of business logic constraint to a table, but not sure how / where. I have a table with the following fields. ID INTEGER IDENTITY HubId INTEGER CategoryId INTEGER IsFeatured BIT Foo NVARCHAR(200) etc. So what i wish is that you can only have one featured thingy, per articleId + hubId. eg. 1, 1, 1, 1, 'blah' -- Ok. 2, 1, 2, 1, 'more blah' -- Also Ok 3, 1, 1, 1, 'aaa' -- constraint error 4, 1, 1, 0, 'asdasdad' -- Ok. 5, 1, 1, 0, 'bbbb' -- Ok. etc. so the third row to be inserterd would fail because that hub AND category already have a featured thingy. Is this possible?

  Read the article

< Previous Page | 619 620 621 622 623 624 625 626 627 628 629 630  | Next Page >