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  • How Netbeans Editors know that file is not modified after undo?

    - by Ha
    Netbeans uses standart UndoManager API for implementation of undo functionality. But neither standart javax.swing.undo.UndoManager nor org.openide.awt.UndoRedo.Manager doesn't have any method to mark states as saved and check modified status. Nonetheless if you change the file and press undo, the file is marked as unmodified. How do they do that? I need the same functionality for my (non-text) editors if the Netbeans RCP application.

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  • Can two managed object context share one single persistent store coordinator?

    - by mystify
    Example: I have one persistent store coordinator which uses one single persistent store. Now there are two managed object contexts, and both want to use the same persistent store. Could both simply use the same persistent store coordinator, or would I have to create two instances of NSPersistentStoreCoordinator? And if I had to, then: Would I also have to create two NSPersistentStore instances?

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  • apache httpclient and spawning a browser that will share the session

    - by Nick
    I'm have a java program that uses Apache httpclient api. This is used to login to and communicate to a webapp. Once logged in, there's a situation in which the program issues an execute process to open up firefox to hit the webapp and allow the user to see data in the browser. Since the java program is already logged in, is there a way to share that current session PHPSESSID so that the spawned firefox is already logged in and working in that same session?

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  • How can I dynamically load and execute all of the Javascript files in a directory?

    - by Andrew
    I'm making a very simple content-management system in Javascript. It uses plugins which are individual .js files which live in a "modules" folder. Currently I'm loading them with JQuery's getScript() function, but I have to manually define the list of available modules. Is there any way to dynamically load the list of Javascript files so that the user can install additional modules by simply dropping them into the "modules" folder?

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  • Store request.headers in a serialized model attribute

    - by Horace Loeb
    Here's my model: class Comment < ActiveRecord::Base serialize :request_headers end But when I try to do @comment.request_headers = request.headers I get a TypeError (can't dump anonymous class Class) exception. Another way to ask my question: how can I convert request.headers into a Hash? It uses a Hash under the covers so this should be easy, no?

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  • How to implement openId java web based application?

    - by satya
    In my web application i want to implement the OpenId just like stackoverflow.com have to login to its web-site. In details you find while login to stackoverflow.com So when if one choose google then it allow the uses to log in through google account. Please tell me how to implement it in java web application in details. Is there any single api for login through different website like(yahoo,google,facebook,etc) Thanks

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  • reclaim unsued space in sql 2008

    - by opensas
    I have a table with more than 300.000 records, that weights approximately 1.5 GB In that table I have three varchar(5000) fields, the rest are small fields I issue an update, setting those three fields to '' An after a shrink (database and files) the database uses almost the same space as before... DBCC SHRINKDATABASE(N'DataBase' ) DBCC SHRINKFILE (N'DataBase' , 1757) DBCC SHRINKFILE (N'DataBase_log' , 344) any idea?

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  • OpenGL - GL_FRONT versus GL_FRONT_AND_BACK

    - by Drew Noakes
    I'm tinkering with an open source project that uses OpenGL for rendering in 3D. In the construction of the materials I see code like this: // set ambient material reflectance glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mAmbient); In other examples, this is used: glMaterialfv(GL_FRONT, GL_AMBIENT, mAmbient); So my question is, what is the difference here? Under what circumstances would it look different and, if my volume is enclosed with all normals pointing outwards, is there any performance difference?

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  • Formula for popularity? (based on "like it", "comments", "views")

    - by paullb
    I have some pages on a website and I have to create an ordering based on "popularity"/"activity" The parameters that I have to use are: views to the page comments made on the page (there is a form at the bottom where uses can make comments) clicks made to the "like it" icon Are there any standards for what a formula for popularity would be? (if not opinions are good too) (initially I thought of views + 10*comments + 10*likeit)

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  • Preventing comboBox keyboard selection

    - by Cornel
    As you now the user can select an item from the comboBox by keyboard directly. By mouse I block the user to select some items depending on the behind object state. What's the best solution to stop this when the user uses the keyboard?

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  • Way to get unsigned char into a std::string without reinterpret_cast?

    - by WilliamKF
    I have an unsigned char array that I need in a std::string, but my current way uses reinterpret_cast which I would like to avoid. Is there a cleaner way to do this? unsigned char my_txt[] = { 0x52, 0x5f, 0x73, 0x68, 0x7e, 0x29, 0x33, 0x74, 0x74, 0x73, 0x72, 0x55 } unsigned int my_txt_len = 12; std::string my_std_string(reinterpret_cast<const char *>(my_txt), my_txt_len);

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  • debuging native code (C++) using gdb on android with Eclipse. Is it possible?

    - by noisy
    Hi, I have some piece of code which uses JNI. I can debug code wrote in Java directly in Eclipse (using ADT). I even have a script, which help me debug native code with gdb. However this is not very comfortable way for doing this. Is it possible to configure Eclipse to use gdb (I guess gdbserver) for debbuging android native applications? Do you know where I could find any description of this?

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  • Environment variable expansion in persistence.xml (JPA)

    - by user342495
    I am developing a Eclipse RCP plugin which uses JPA. I tried to specify the database path via a variable give to the JVM on runtime. The property is set correctly but the database is created in a folder named after the variable name (here: ${DBHOME}). <property name="javax.persistence.jdbc.url" value="jdbc:derby:${DBHOME};create=true"/> Is there a possibility to fix this? Thx

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  • Selectively turning off Devise's flash notices in Rails 3

    - by Sim
    The Devise authentication framework uses flash notices everywhere. This makes it easy to integrate with apps but it leads to poor user experience sometimes. I am wondering what's an easy way to selectively turn off some of the Devise flash notices in my Rails 3 app. In particular, I'd like to get rid of the blatantly obvious signed_in and signed_out flashes. Some searching suggested subclassing the session controller or use something like this but I haven't been able to find any simple solutions to this problem.

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  • Redirect to https login page

    - by user50622
    I have a site that has a mix of http and https pages. Under the root of the site, one folder has all the http pages and another has all the https pages. Login is over https and sends the user to the other pages. When a session expires the forms authentication redirects to the Login page but the browser uses http and the user gets a 403 error. Is there any way to override the session timeout to send it to https?

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  • Dynamic Dispatch without Virtual Functions

    - by Kristopher Johnson
    I've got some legacy code that, instead of virtual functions, uses a kind field to do dynamic dispatch. It looks something like this: // Base struct shared by all subtypes // Plain-old data; can't use virtual functions struct POD { int kind; int GetFoo(); int GetBar(); int GetBaz(); int GetXyzzy(); }; enum Kind { Kind_Derived1, Kind_Derived2, Kind_Derived3 }; struct Derived1: POD { Derived1(): kind(Kind_Derived1) {} int GetFoo(); int GetBar(); int GetBaz(); int GetXyzzy(); // plus other type-specific data and function members }; struct Derived2: POD { Derived2(): kind(Kind_Derived2) {} int GetFoo(); int GetBar(); int GetBaz(); int GetXyzzy(); // plus other type-specific data and function members }; struct Derived3: POD { Derived3(): kind(Kind_Derived3) {} int GetFoo(); int GetBar(); int GetBaz(); int GetXyzzy(); // plus other type-specific data and function members }; and then the POD class's function members are implemented like this: int POD::GetFoo() { // Call kind-specific function switch (kind) { case Kind_Derived1: { Derived1 *pDerived1 = static_cast<Derived1*>(this); return pDerived1->GetFoo(); } case Kind_Derived2: { Derived2 *pDerived2 = static_cast<Derived2*>(this); return pDerived2->GetFoo(); } case Kind_Derived3: { Derived3 *pDerived3 = static_cast<Derived3*>(this); return pDerived3->GetFoo(); } default: throw UnknownKindException(kind, "GetFoo"); } } POD::GetBar(), POD::GetBaz(), POD::GetXyzzy(), and other members are implemented similarly. This example is simplified. The actual code has about a dozen different subtypes of POD, and a couple dozen methods. New subtypes of POD and new methods are added pretty frequently, and so every time we do that, we have to update all these switch statements. The typical way to handle this would be to declare the function members virtual in the POD class, but we can't do that because the objects reside in shared memory. There is a lot of code that depends on these structs being plain-old-data, so even if I could figure out some way to have virtual functions in shared-memory objects, I wouldn't want to do that. So, I'm looking for suggestions as to the best way to clean this up so that all the knowledge of how to call the subtype methods is centralized in one place, rather than scattered among a couple dozen switch statements in a couple dozen functions. What occurs to me is that I can create some sort of adapter class that wraps a POD and uses templates to minimize the redundancy. But before I start down that path, I'd like to know how others have dealt with this.

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