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Search found 1630 results on 66 pages for 'plt scheme'.

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• Creating an object relational schema from a Class diagram

  - by Caylem

  Hi Ladies and Gents. I'd like some help converting the following UML diagram: UML Diagram The diagram shows 4 classes and is related to a Loyalty card scheme for an imaginary supermarket. I'd like to create an object relational data base schema from it for use with Oracle 10g/11g. Not sure where to begin, if somebody could give me a head start that would be great. Looking for actually starting the schema, show abstraction, constraints, types(subtypes, supertypes) methods and functions. Note: I'm not looking for anyone to make any comments regarding the actual classes and whether changes should be made to the Diagram, just the schema. Thanks

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• Free and Simple Hosting Solution with DB Support?

  - by darren

  Hi everyone I have compiled an sqlite database that I would like to make public. I want to provide a very simple webpage that has a few form elements which are used to query the database. Does anybody know of a free hosting solution that would provide me with free web and database functionality? I am familiar with Google App Engine and that would work but I don't want to spend time using their custom storage scheme. I'm looking for something free that I can put together very quickly. Thanks for any suggestions.

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• Concise description of the lua vm?

  - by anon

  I've skimmed Programing in Lua, I've looked at the Lua Reference. However, they both tells me this function does this, but not how. When reading SICP, I got this feeling of: "ah, here's the computational model underlying scheme"; I'm trying to get the same sense concerning lua -- i.e. a concise description of it's vm, a "how" rather than a "what". Does anyone know of a good document (besides the C source) describing this? Thanks!

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• Web services Authentication Jungle

  - by redben

  I have been doing some research lately about best approaches to authenticating web services calls (REST SOAP or whatever). But none of the Approaches convinced me... But i still can't a make a choise... Some talk about SSL and http basic authentication -login/password- which just seems weird for a machine (i mean having to assign a login/password to a machine, or is it not ?). Some others say API keys (seems like these scheme is more used for tracking and not realy for securing). Some say tokens (like session IDs) but shouldn't we stay stateless (especially if in REST style) ? In my use case, when a remote app is calling one of our web services, i have to authenticate the calling application obviously, and the call must - if applicable - tell me which user it impersonates so i can deal with authorization later. Any thoughts ?

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• c# multi threaded file processing

  - by user177883

  There is a folder that contains 1000 of small text files. I aim to parse and process all of them while more files are being populated in to the folder. My intention is to multithread this operation as the single threaded prototype took 6 minutes to process 1000 files. I like to have reader and writer thread(s) as following : while the reader thread(s) are reading the files, I d like to have writer thread(s) to process them. Once the reader is started reading a file, I d like to mark it as being processed, such as by renaming it, once it s read, rename it to completed. How to approach such multithreaded application ? Is it better to use a distributed hash table or a queue? Which data structure to use that would avoid locks? Would you have a better approach to this scheme that you like to share?

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• Bitfield With 3 States...?

  - by TheCloudlessSky

  I'm trying to create an authorization scheme for my ASP.NET MVC application where an Enum is used to set permissions. For example: [Flags] enum Permissions { ReadAppointments = 1, WriteAppointments = 2 | ReadAppointments, ReadPatients = 4, WritePatients = 8 | ReadPatients, ReadInvoices = 16, WriteInvoices = 32 | ReadInvoices ... } But I don't really like that because it really doesn't make it clear that Write always includes Read. I then realized that a requirement would be that a user might have NO access to, for example, Appointments. Essentially, I'd want a "bitfield" with 3 states: none, readonly, full (read/write). I'd like to still use an enum bitfield since it's easy to store in a DB (as an int). Also it's very easy to see if a permission is set. Does anyone have any idea how this could be easily accomplished using an Enum... or am I going in the completely wrong direction?

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• How to open a pdf on the iPad from an AIR for iOS app

  - by Dennis Flood

  I am making an AIR for iOS app that can download pdfs. I do not want to display the pdf in the app itself but want the default pdf-viewer (iBooks) to launch and show the pdf. How can this be done. I am aware that navigateToURL can be used to open a file with the uri scheme of iBooks. But i dont know how to tell iBooks to look in the app-directory of my app. (Or is there some secret directory to place the file in from within the app - where iBooks can find it) Any pointers or help would be greatly appreciated as this is somewhat of a show stopper.

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• Software protection

  - by anfono

  I want to protect my software from being used without permission. I will provide it for free to the parties I authorize to use it. Anyone knows a good protection scheme against having it copied and run by unauthorized parties ? So far, I thought about introducing a key validation mechanism: periodically, the user needs to send me (web site query) a code based on which I generate a new code that app validates against. There is an initial code, and so I can track users... Thoughts ? Later edit: I changed the licensing part to avoid unfocused discussion.

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• WCF client using basic HTTP authentication

  - by AZ

  I'm trying to connect to a service that uses basic HTTP authentication. I've configured my binding like this <bindings> <basicHttpBinding> <binding name ="binding"> <security mode="TransportCredentialOnly"> <transport clientCredentialType="Basic"/> </security> </binding> </basicHttpBinding> </bindings> and i'm setting the credentials like this: client.ClientCredentials.UserName.UserName = Settings.UserName; client.ClientCredentials.UserName.Password = Settings.Password; Sill when i make a request i get a "The HTTP request is unauthorized with client authentication scheme 'Basic'" fault back. What am i doing wrong? (i don't have control over the service so all solutions must relate to the client configuration)

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• Design review - do you think I'm doing this the right way? First commercial project for me!

  - by Sergio Tapia

  I'm tasked with designing an application that will allow a person to scan a legal document, save that associated with a Name and save it to a database. Now, inside of the Organization, there are many departments, and each department can have many sub departments. Problem lies in that some larger organizations will have many departments and smallers ones will only have 1 or two. I've though about creating a Department table and a Supdepartment table to create associations, etc. That way it's extensible and users can dynamically create departments to fit my program to their organizational scheme. Am I approaching this the right way? As I said, this is my first commercial application so I want to do it right and set a name for myself for delivering things on time and good code for other to expand upon.

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• How to import and export only data of whole database in access 2007

  - by DiegoMaK

  Hi, I have two identical databases with same structure, database a in computer a and database b in computer b. The data of database a*(a.accdb)* and database b*(b.accdb)* are different. then in database a i have for example ID:1, 2, 3 and in database B i Have ID:4,5,6 Then i need merge these databases data in only one database(a or b, doesn't matter) so the final database looks like. ID:1,2,3,4,5,6 I search an easy way to do this. because i have many tables. and do this by union query is so tedious. I search for example for a backup option for only data without scheme as in postgreSQl or many others RDBMS, but i don't see this options in access 2007. pd:only just table could be duplicate values(i guess that pk doesn't allow copy a duplicate value and all others values will be copied well). if i wrong please correct me. thanks for your help.

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• Is there a language designed for code golf?

  - by J S

  I am not really a fan of code golf, but I have to wonder, is there an esoteric language designed for it? I mean a language with following properties: Common programs may be expressed in very short amount of characters It uses ASCII character set effectively (for example, common operators are not identifiers, so they don't have to be separated by whitespace, character usage is distributed more or less evenly because we cannot use Huffman coding and so on) Except the terse syntax, it should have very expressible and clean semantics (like, let's say, Python or Scheme); it shouldn't be difficult to program in It doesn't need features for large scale programs, such as OOP, but it definitely should allow custom functions and data structures It should have a large standard library, identifiers in this library should be as short as possible Maybe it should be called CG? Languages that can be a source of inspiration are Forth, APL and Joy.

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• How to do animation using swing and clojure ?

  - by Humberto Pinheiro

  I'm trying to animate a chess piece in a board. First I created a java.util.Timer object that "scheduleAtFixedRate" a TimerTask implemented as a proxy function. So I kept a record of the piece to move (piece-moving-record) and when it's apropriate (when the user move the piece using the mouse) the TimerTask proxy function should be test if the record is not nil and execute the piece-moving function. The piece-moving function just updates the x and y coordinates of the piece, according to a vector pre-calculated. I put a add-watch on the piece-moving-record so when it changes it should repaint the board (canvas). The paint method tests if this piece-moving-record is not nil to paint it. The problem is that the animation doesn't appear. The piece just jump to the destiny, without the movement between. There is some problem with the animation scheme ou there is a better way to do it?

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• Are there any programming languages targeting PHP, besides haXe?

  - by stesch

  PHP doesn't get much love but is still a winner at easy deployment (for cheap hosting). Are there any programming languages (besides haXe) that target PHP? Writing applications in this language and then translating it into PHP, like some languages target C as an intermediate language? The Scheme implementation Chicken compiles into C. XOTcl converts Java code into Tcl code LINJ was(?) a tool to convert Lisp into nice looking Java code … + a lot of ways to produce JavaScript without touching JavaScript.

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• Open Safari from within Opera Mini on the iPhone

  - by Ican Zilb

  Now that Opera Mini is becoming so popular in the App store I want to effectively warn my web site visitors that the rendition they see in Opera Mini is far from what I meant them to see and redirect them to my page in Mobile Safari, so they can enjoy HTML5 and CSS3. I've been banging my head around that task all day long, but I can't seem to find a solution. My hope lies in the custom URL schemes, but seems Opera Mini handles all schemes which usually Safari does. Would be great if there's a scheme like safari://www.domain.com which opens ONLY in Safari, so I can redirect the visitors to it. Does anybody know a solution to that problem? --edit Just to make myself clear - browser detection is not the problem (I'm doing Javascript for 13 years now) the question is if there's a way to invoke the Safari app on the iPhone from within a web page which is being viewed in Opera Mini.

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• Flex Framework vs. Micro-Architecture

  - by droboZ

  I'm in the process of choosing a framework for my flex development, and one of the questions that was asked about a framework was "is this a framework or a micro-architecture"? Can someone clarify what's the difference? What exactly is a framework, and when can we start calling what we have a framework? I work with FlexBuilder3 (now called FlashBuilder4) and have a lot of standard things that I do for almost all projects, and components that I created for easy re-use. Some are very very small, but the benefit of a 1-liner has been immense for me instead of repeating the code over and over. So in the framework/micro-architecture scheme, can I say that these are my internal in-house framework or are they part of a micro-architecture? Trying to understand this topic better.

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• How to generate a report of IIS settings for easy perusal?

  - by Bryan

  Hello, I'm looking for a way to (hopefully) create a text file which lists all the settings in IIS for.. Virtual Directories Web sites Which framework is used on a certain website/directory directory of hosted files etc. Basically I want to do some investigation on some of our servers to figure out where certain projects are located, without digging through right clicking and looking for the directory name manually, etc, for every domain we host. The reasoning is that I often need to find access to files/projects I haven't worked on before, but historically, we don't have a strong naming scheme, so you can't just look where something "logically" would be - so, generating a list would be very helpful. Something like this would be awesome, but I'm looking for any tips at all Domainname1.com framework: ASP.NET 1.1 directory: c:\inetpub\wwwroot\domainname1.com Applications hosted at this domain: etc, etc. Plain text, XLS, XML.. anything other than right clicking through the whole list! Thanks!

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• Why doesn't CSS support constants?

  - by Adiel Mittmann

  CSS has never supported constants or variables directly. Whenever I'm writing code like this: span.class1 { color: #377fb6; } div.class2 { border: solid 1px #377fb6; /* Repeated color */ } I wonder why such a seemingly simple feature has never made it into the standard. What could be hard about implementing a scheme whereby we could avoid repetition, something like this: $theme_color1: #377fb6; span.class1 { color: $theme_color1; } div.class2 { border: solid 1px $theme_color1; } I know there are workarounds, like using a class for each color or generating CSS code from templates, but my question is: given that CSS is so rich and complex, why weren't CSS constants ever introduced?

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• .NET Multipage Tiff with Lossy Compression

  - by Adam Berent

  I need a way to take several jpgs and convert them into a single multi page Tiff. I have that working using GDI+ however it only works with the compression LZW which is lossless. This means that my 3 50KB Jpgs turn into 3MB multipage Tiff file. This is not something I can accept for the software that I am working on. I know that Tiff Image format can use a JPG compression scheme but GDI+ does not seem to support this. If anyone knows how to do this in .NET (C#) or of any component that does this conversion.

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• Vim: multi-file editing - having different makes in different splits

  - by gmatt

  I'm a recent vim convert (from fancy IDEs like eclipse.) I love the :make command in vim and use it extensively; however I also like to edit multiple projects (with separate makefiles.) So usually to edit more than one project I will do pushd project1 vim project1.cpp [suspend signal] pushd ../project2 vim project2.cpp and now I can switch between the two projects with ctrl+z i.e. suspend signal, and fg. When this becomes an issue is when I want to open one project in the context of another so I can do copy/pasting. So if instead in the above I do pushd project1 vim project1.cpp :vsp ../project2/project2.cpp I can edit both concurrently in the same vim process, however I can't effectively build one or the other with the :make command, it will only build project 1. Does anyone have some kind of scheme that gives them the best of both worlds: being able to edit concurrently while still being able to build multiple projects with the :make command all from the same vim process?

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• PHP Array Key & value Question

  - by Nano HE

  Hi I writed a test code as below. <?php $url = 'http://localhost/events/result/cn_index.php?login'; print_r(parse_url($url)); echo parse_url($url, PHP_URL_PATH); ?> Output Array ( [scheme] => http [host] => localhost [path] => /events/result/cn_index.php [query] => login ) /events/result/cn_index.php Now I inserted the line below echo array[query]; // I want to echo 'login', but failed. How to the the value of 'login'?

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• Service-Based Authentication Using Tokens

  - by jerhinesmith

  I'm having a tough time trying to find clear and concise examples of how one would implement a service-based authentication scheme using tokens. As far as I can tell, the basic steps are as follows: Client requests username/password from user Client passes username/password to identity provider Provider checks username/password and sends back a token if the user is valid Client does something with the token? The third and fourth step are where I'm getting stuck. I assume the "token" in this case just has to be either an encrypted string that the client can decrypt or some random string that gets stored somewhere (i.e. a database) that the client can then verify against, but I'm not really sure what the client is then supposed to do with the token or why you even need a token at all -- couldn't a simple user ID also suffice?

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• How handle page not found error in android?

  - by Akshata

  I am calling one android application from java script using following code: window.location.href="android3://com.android.application3"; In androidManifest file of Application I use intent filter as follow <data android:scheme="android3" android:host="com.android.application3"/> If the application is already installed then it is running well, but if it not installed then it is showing error that page android3://com.android.application3 is not found. I want to catch that error and want to show error message. How I can check that the application is not instilled on mobile??

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• What applications is Python optimal for?

  - by Alan

  I'm already a professional J2EE developer by day, and Rails developer by night. I'm planning on adding Python to my list of skills. I'm already convinced a language is just a tool, so I'm not interested in a religious war. I agree with the Pragmatic Programmers that learning one language/year is a good thing for your professional development So, in your considered opinion, what kinds of applications does Python hit the sweet spot? And why? What advantages does it have, and why do these advantages outweigh the costs in adopting Python? ADD: I also plan on learning a pure functional language like Scheme.

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• How to generate a video signal from Android device via USB?

  - by C.Rivlaldo

  Is it possible to create an application for Android, which can generate a video signal (HDMI or VGA) via USB? Any Android device has miniUSB port. Theoretically it's possible to create a small commutator device on microcontroller or microscheme, which will be a USB-host for Android device. You'll connect Android device with commutator and then connect commutator with monitor. For example, the scheme looks like: Android phone - commutator (USB-host) - TV/Monitor. Summary, I need to connect android phone with TV via miniUSB port. I found soft which can use miniUSB - HDMI cable, but those apps only for Motorolla Droid and HTC Evo. I'll glad to get links to existing apps or projects on that theme, to info about software generation HDMI-signal and connecting Android devices with another devices. Thank you and sorry for my bad english!

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