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Articles indexed Thursday April 1 2010

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  • How to perform a non-polymorphic HQL query in Hibernate?

    - by Eli Acherkan
    Hi all, I'm using Hibernate 3.1.1, and in particular, I'm using HQL queries. According to the documentation, Hibernate's queries are polymorphic: A query like: from Cat as cat returns instances not only of Cat, but also of subclasses like DomesticCat. How can I query for instances of Cat, but not of any of its subclasses? I'd like to be able to do it without having to explicitly mention each subclass. I'm aware of the following options, and don't find them satisfactory: Manually filtering the instances after the query, OR: Manually adding a WHERE clause on the discriminator column. It would make sense for Hibernate to allow the user to decide whether a query should be polymorphic or not, but I can't find such an option. Thanks in advance!

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  • Copying a chunk of output in Windows 7

    - by syuusuke
    Hello, I'm wondering how to copy a chunk of output in the command prompt in Windows 7. What I'm ultimately trying to accomplish is when I type "route print" I want to copy the IPs listed under IPv4 Route Table. I used the findstr command to grab 1 line at a time but is there a way to grab the whole table in one shot? Thanks,

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  • How do I redirect all requests to files in the root folder to point to another folder?

    - by purpletonic
    I've moved all of my files from the root of my website into a subfolder, I'd like to do an Apache redirect to point to the files without affecting the other subfolders in my site. E.g. /index.html -- redirect to -- /subfolder1/index.html /file1.html -- redirect to -- /subfolder1/index.html /subfolder2/index.html -- No redirect Can anyone help me with the redirect rule that I need to write for this. Thanks,

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  • Are there free FTP serer backup repositories

    - by Saif Bechan
    I was wondering if there is a free service that provides a repository for your backups. These are backups of my server, there are usually about 200mb. I want to FTP the last 2 or 3. I am looking for a service that maybe provide some gigs of space and with FTP access. Looking at email providers such as gmail and hotmail that give you a couple of gigs of free space, this should also be possible or am i horribly wrong.

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  • SHLoadImageFile(L"\\Program Files\\TrainingApp\\background.png"); whats that L in the argument for?

    - by ashishsony
    Hi, ive been working on c++ on linux for the past 2 years,and switched to windows c++ programming recently. can anyone tell me what that L is there in the argument of the function: SHLoadImageFile(L"\\Program Files\\TrainingApp\\background.png"); and on viewing certain sample code in MSVS C++ i came across hundereds of typedefs like.. LPARAM// typedef LONG_PTR LPARAM... here LONG_PTR is again typedef as __w64 long WPARAM// typedef UINT_PTR WPARAM... so there is a lot of chained typedefs.. I never saw this much of typedef chaining on c++ programming on linux using gcc.. what i want to say is that it just creates more confusion in this way for windows application programming.. while ive seen application programming on linux using frameworks like Qt.. there such things are rarely used.. so is there specific purpose in typedefining again and again on MSVSC++?? for eg.. there are typdefs like typedef int BOOL; whats the use of this when normal bool is available already..?? there are hundred other cases ive come across where just to decide what data type to use becomes so difficult.. it becomes difficult to understand a pre written code in this fashion too.. Thanks.

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  • Currency Math in JavaScript

    - by Jared
    Can someone please help me out with a JavaScript/jQuery solution for this arithmetic problem: I need to subtract one number from the other. The problem is that the numbers have a dollar sign (because its money), therefore jQuery is treating them as strings instead of numbers. I have created two variables - toalAssets and totalLiabilites. I would like to subtract the latter from the former and place the result into another variable called netWorth. Perhaps i need to use parseFloat()? But I'm not sure how - This is all a little over my head!

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  • Picasa API for C# error

    - by pho3nix
    My Code: foreach (PicasaEntry entryAlbuns in feedAlbuns.Entries) { AlbumAccessor ac = new AlbumAccessor(entryAlbuns); PhotoQuery photos = new PhotoQuery(PicasaQuery.CreatePicasaUri("admin@localhost", ac.AlbumTitle)); PicasaFeed feedPhotos = service.Query(photos); } When debugger step in line PicasaFeed feedPhotos = service.Query(photos); get an error The remote server returned an error: (404) Not Found. Check parameters accepted: PS: Because security reasons i replaced my email account to admin@localhost.

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  • ASP.NET MVC - Parent-Child Table Relation - how to creat Children in MVC (example request)

    - by adudley
    Hi All. In a standard setup of Parent Child relation, lets say Project and Task. Where a Project is made up of lots of Tasks. So in a standard RDB, we have a Project (ID, Name, Deadline) Task (ID, FK_To_Project, Name, Description, isCompleted) this is all very straight forward. We have an MVC View that views Projects, so we get a nice list of all the project Names next to each deadline. Now we want to CREATE a new PROJECT. The Edit view opens, we type a name, say, 'Make a cup of Tea', with tomorrow as the deadline! Still in this view/web page, I would like a list of all the Child Tasks, in a standard list, with Edit, Delete, and a Create/Add Task button too, just below the 'parent table' details. The simplest way to describe this, is the Parents Table Create/Edit view, with the Childes List View Below it. 1) The ideal solution will also allow my Child Table (Tasks) to have Children also (for more complex scenarios) , and so on, and on, and on. 2) If I navigate away from my Created Project, I don’t want all sorts of random stuff laying around, they went away, it’s gone! 3) I’d expect all the same functionality when Editing an existing project. I’m struggling with the ‘Add New Child’, I had a model dialog (jquery) and all was well, but now when editing an existing child/task, I need to populate the Child Edit, which is a pain and will need loads of java script I think :( How can this be achieved in MVC, does anybody have any examples?

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  • Any reasons not to gzip?

    - by Haroldo
    I remember someone telling me that gzipped content is not cached on some browsers? is this true? Are there any other reasons why I shouldn't gzip my content (pages, javascript and css files) with htaccess?

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  • Install a file which should be removed only on real uninstall and never overwritten

    - by Viv Coco
    When I install my application, along with the binaries, a conf file is installed that the user can change as he needs (it's actually the user data file). I would like this file to not be overwritten or deleted when a repair, upgrade, modify happens and it should be deleted only when a real uninstall happens. In other words: this conf file is installed along with the binaries and should never be touched again (overwritten/deleted) until a real uninstall happens (not repairs, modifies, upgrades) in which case it should be deleted. So I was thinking of doing: <Component Id="aaa.cfg" Guid="GUID"> <File Id="aaa.cfg" Source="aaa.cfg" KeyPath="yes" /> </Component> But I don't know how could I condition the component so that: 1) the component to be removed only on a real uninstall - not upgrades, repairs, modifies? 2) the file should in no case be overwritten if already exists. Thx, Viv

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  • What design pattern will you choose ?

    - by MemoryLeak
    I want to design a class, which contains a procedure to achieve a goal. And it must follow some order to make sure the last method, let's say "ExecuteIt", to behave correctly. in such a case, what design patter will you use ? which can make sure that the user must call the public method according some ordering. If you really don't know what I am saying, then can you share me some concept of choosing a design patter, or what will you consider while design a class?

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  • USB Device Not Recognized (Mac)

    - by Nargis
    Fortunately, my Mac-pro also made one of my USB storage devices inoperable. My data loss in that USB device but such as another USB device and USB keyboard are unaffected. I have heard that my friend usually trigger this problem by having at least two devices plugged in - typically thumb drives/USB flash drives, and then once a second flash drive is plugged in that become unrecognized. I have only two USB ports and first I think port loose when I connect two USB devices. But later I found these hidden files (“.Spotlight-V100”, “.TemporaryItems”, “.Trashes”, and “._.Trashes”) are created by Mac OS. And before unrecognized that USB device I have deleted these files and my friend had also done the same action. Now I don’t want to test for next USB device to become unrecognized and I won’t deleted any hidden system file inside the flash drives. But I really want to know why these problems happened. Can I delete these hidden files when I only connect to virtual machine (Vista), because I used to delete all useless hidden files from USB flash drives? Any suggestions or thoughts to prevent this or alternative suggestions to fix the problem that take lossless would be much appreciated.

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  • What are various methods for discovering test cases

    - by NativeByte
    All, I am a developer but like to know more about testing process and methods. I believe this helps me write more solid code as it improves the cases I can test using my unit tests before delivering product to the test team. I have recently started looking at Test Driven Development and Exploratory testing approach to software projects. Now it's easier for me to find test cases for the code that I have written. But I am curios to know how to discover test cases when I am not the developer for the functionality under test. Say for e.g. let's have a basic user registration form that we see on various websites. Assuming the person testing it is not the developer of the form, how should one go about testing the input fields on the form, what would be your strategy? How would you discover test cases? I believe this kind of testing benefits from exploratory testing approach, i may be wrong here though. I would appreciate your views on this. Thanks, Byte

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  • How to get SQL Function run a different query and return value from either query?

    - by RoguePlanetoid
    I need a function, but cannot seem to get it quite right, I have looked at examples here and elsewhere and cannot seem to get this just right, I need an optional item to be included in my query, I have this query (which works): SELECT TOP 100 PERCENT SKU, Description, LEN(CONVERT(VARCHAR (1000),Description)) AS LenDesc FROM tblItem WHERE Title = @Title AND Manufacturer = @Manufacturer ORDER BY LenDesc DESC This works within a Function, however the Manufacturer is Optional for this search - which is to find the description of a similar item, if none is present, the other query is: SELECT TOP 100 PERCENT SKU, Description, LEN(CONVERT(VARCHAR (1000),Description)) AS LenDesc FROM tblItem WHERE Title = @Title ORDER BY LenDesc DESC Which is missing the Manufacturer, how to I get my function to use either query based on the Manufacturer Value being present or not. The reason is I will have a function which first checks an SKU for a Description, if it is not present - it uses this method to get a Description from a Similar Product, then updates the product being added with the similar product's description. Here is the function so far: ALTER FUNCTION [dbo].[GetDescriptionByTitleManufacturer] ( @Title varchar(400), @Manufacturer varchar(160) ) RETURNS TABLE AS RETURN ( SELECT TOP 100 PERCENT SKU, Description, LEN(CONVERT(VARCHAR (1000),Description)) AS LenDesc FROM tblItem WHERE Title = @Title AND Manufacturer = @Manufacturer ORDER BY LenDesc DESC ) I've tried adding BEGINs and IF...ELSEs but get errors or syntax problems each way I try it, I want to be able to do something like this pseudo-function (which does not work): ALTER FUNCTION [dbo].[GetDescriptionByTitleManufacturer] ( @Title varchar(400), @Manufacturer varchar(160) ) RETURNS TABLE AS BEGIN IF (@Manufacturer = Null) RETURN ( SELECT TOP 100 PERCENT SKU, Description, LEN(CONVERT(VARCHAR (1000),Description)) AS LenDesc FROM tblItem WHERE Title = @Title ORDER BY LenDesc DESC ) ELSE RETURN ( SELECT TOP 100 PERCENT SKU, Description, LEN(CONVERT(VARCHAR (1000),Description)) AS LenDesc FROM tblItem WHERE Title = @Title AND Manufacturer = @Manufacturer ORDER BY LenDesc DESC ) END

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