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  • castle IOC - resolving circular references

    - by Frederik
    Hi quick question for my MVP implementation: currently I have the code below, in which both the presenter and view are resolved via the container. Then the presenter calls View.Init to pass himself to the view. I was wondering however if there is a way to let the container fix my circular reference (view - presenter, presenter - view). class Presenter : IPresenter { private View _view; public Presenter(IView view, ...){ _view = view; _view.Init(this) } } class View : IView { private IPresenter _presenter; public void Init(IPresenter presenter){ _presenter = presenter; } } Kind regards Frederik

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  • Terracotta With Hibernate and EHCache

    - by Joe Biron
    Head swimming with the product name soup at http://www.terracotta.org. Need someone to help clarify what I need. Background: app has some "legacy" persistence code that does not use Hibernate, but has a home-grown cache implementation. New entities are Hibernate enabled. What I want: to use Terracotta for Hibernate 2nd level cache. I think I then want to slide out the home-grown cache impl and slide in ehcache (very similar semantically to home-grown version) - obviously I want Terracotta to back that EHCache as well. Confused with: Will I be telling Hibernate that ehcache is it's cache provider, then configure ehcache to use terracotta? So (hibernate | legacy-persistence)- ehcache - terracotta Am I on the right track? Forgive the newb question but the terracotta.org site really confuses me since so much of it it trying to sell me the commercial varieties.

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  • Programming an Event listener for files in a directory on Linux

    - by Epitaph
    On Ubuntu linux, when you watch a flash video, it gets saved temporarily in the /tmp as flv files while the video buffers. I use vlc to directly play these files. Currently, I have scripted a shortcut that directly scans and opens the latest file in /tmp with vlc, when clicked. But, I want to program a Java application that will continually monitor this /tmp directory for any new flv files, and open it in vlc automatically. I know I can use Runtime.exec() to open the VLC application with the flv files. But, I DO NOT want to run a while(true) loop (with sleep) to scan for files. How can I make use of Event Handling (Java or any other language) on Linux to complete this task?

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  • Why is C# suddenly so popular?

    - by leeand00
    Why is C# suddenly so popular? There's been like a repeat explosion in the blogs lately about it; It reminds me of the earlier part of this decade when all of those frameworks for Java came out like Spring, JSF, Hibernate, Struts, Struts2, Tapestry etc... I've actually been thinking about learning C#, and it seems to contain a lot of qualities that it has gotten from Java (aside from it being completely cross-platform) But, it almost seems like a step backwards to me...its not totally multi-platform, a language that's run by a corporation rather than a community... (But, knowing this isn't the case, I've come here to find out why it isn't...) P.S. And yes, I am aware of the Mono project so that you can run it on Linux, but isn't it always behind the curve? A new version of Java would be supported on all the platforms.

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  • How to know what you don't know?

    - by Ivo Danihelka
    Is there a way how to recognize that you don't know something? For example, I had some hard realizations: I didn't know that criticism isn't a good way to teach your friends. I realized that after reading How to Win Friends & Influence People. I didn't know about the fundamental needed for an indutive bias in machine learning. If I have read Mitchell's Machine Learning book early, I would know it. I haven't found it mentioned in other books and papers. Sorry if the question is too generic. The question could also mean: How to know that you are missing something important about your programming language?

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  • Why should I use MVVM when it breaks built in riaservices functionality

    - by Jakob
    I'm struggling to grasp why MVVM is really a good pattern to implement in riaserivces, To me there's nothing but trouble to it, it just add's another tier that I have to code. I Get that I could change the UI, but really I don't need to. Instead i won't be able to user out of the box functionality with riaservices, datagrid, dataform all controls require some implementation. Why can't it just be simple? Is there really no way to get MVVM to automatically set "IsBusy" and all the dataform edit functionality. It's like reinventing the wheel to me, and it seems that I'd be able to write code much faster just using riaservices

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  • Using Spring's KeyHolder with programmatically-generated primary keys

    - by smayers81
    Hello, I am using Spring's NamedParameterJdbcTemplate to perform an insert into a table. The table uses a NEXTVAL on a sequence to obtain the primary key. I then want this generated ID to be passed back to me. I am using Spring's KeyHolder implementation like this: KeyHolder key = new GeneratedKeyHolder(); jdbcTemplate.update(Constants.INSERT_ORDER_STATEMENT, params, key); However, when I run this statement, I am getting: org.springframework.dao.DataRetrievalFailureException: The generated key is not of a supported numeric type. Unable to cast [oracle.sql.ROWID] to [java.lang.Number] at org.springframework.jdbc.support.GeneratedKeyHolder.getKey(GeneratedKeyHolder.java:73) Any ideas what I am missing?

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  • Linq to SQL query error

    - by Tom Kong
    public class Service1 : IService1 { [OperationContract] public List<decmal> GetEnterCounts(DateTime StartTime, DateTime EndTime) { var db = new FACT_ENTER_EXIT(); return (from e in **db.ENTER_CNT** where StartTime < db.DATE_ID && db.DATE_ID > EndTime select e).ToList(); } } Ok, so I have this database FACT_ENTER_EXIT containing the field ENTER_CNT (nullable = false, type = decimal) which I want to return as a list VS2010 spits out the following error at 'db.ENTER_CNT': Error 1 Could not find an implementation of the query pattern for source type 'decimal'. 'Where' not found. I must be missing something, could someone please point out where I'm going wrong?? Thanks in advance, Tom

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  • Is there a standard Java utility to parse XSD files at runtime?

    - by Andrew
    I've been looking around for a way to programmatically parse XSD files to generate an XML mapping so that I can take any XSD file and create a parser that will parse any XML file that conforms to it, and my google-fu has been coming up short. XSOM looks promising, as it will parse an XSD file and make all its attributes available in a straight forward way. Are there any other options or standard libraries available that will produce an XML file parser from an XSD file? [Conclusion] Thanks everyone for your responses, they were a real help. I was able to write implementations using JAXP, Eclipses EMF and in XSOM that all worked as desired. JAXP was very straight forward and easy to learn and do. EMF was actually a pain to get going properly, there were so many jars that had to be included for it to work standalone that I would not recommend it. XSOM was even simpler than the JAXP implementation, so I went with it in the end.

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  • Shared Source CLI 4.0?

    - by Paul Alexander
    Microsoft released the Shared Source Common Language Infrastructure (the code previously known as ROTOR) code some years ago basically as a reference implementation of the .NET runtime. While the actual .NET runtime (mscorlib, mscoree, mscorjit, etc.) aren't compiled from the code, debugging them shows that they are remarkably similar and at a minimum share much of the same memory structures. This has been an invaluable resource when debugging tricky system behavior with .NET 2.0 compiled assemblies. Now that 4.0 has been released with major changes to the runtime I'd love to find the reference source for that as well. Microsoft has changed names for the source in the past so I'm either searching for the wrong thing, or it hasn't been released. Is there reference source for a .NET 4.0 compatible runtime?

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  • How to write syntax highlighting?

    - by ML
    I am embarking on some learning and I want to write my own syntax highlighting for files in C++. Can anyone give me ideas on how to go about doing this? To me it seems that when a file is opened: 1. it would need to be parsed and decided what type of source file it is. Trusting the extension might not be full-proof a way to know what keywords/commands apply to what language a way to decide what color each keyword/command gets I want to do this on OS X, C++ or Objective-C Can anyone provide pointers on how I might get started with this?

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  • fastest (low latency) method for Inter Process Communication between Java and C/C++

    - by Bastien
    Hello, I have a Java app, connecting through TCP socket to a "server" developed in C/C++. both app & server are running on the same machine, a Solaris box (but we're considering migrating to Linux eventually). type of data exchanged is simple messages (login, login ACK, then client asks for something, server replies). each message is around 300 bytes long. Currently we're using Sockets, and all is OK, however I'm looking for a faster way to exchange data (lower latency), using IPC methods. I've been researching the net and came up with references to the following technologies: - shared memory - pipes - queues but I couldn't find proper analysis of their respective performances, neither how to implement them in both JAVA and C/C++ (so that they can talk to each other), except maybe pipes that I could imagine how to do. can anyone comment about performances & feasibility of each method in this context ? any pointer / link to useful implementation information ? thanks for your help

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  • What exactly happens when Complex Script Support is enabled?

    - by Ravi Chhabra
    When we click the check box "Install files for complex script and right to left languages (including Thai)" in Regional and Language settings what exactly happens? Changes to registry keys? I noticed that it installs some .fon files and keyboard dlls. Is this totally necessary if one just wish to read complex script on Windows XP? My test inside VirutalBox as Windows 7 as the host OS seems to indicate that for reading Complex Script need not be enabled. Yet that's not what all the literature on the subject says. What's going on?

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  • How do I define functions using PLT Scheme macros?

    - by nickname
    I am trying to write a macro that defines a special class of data structure with associated functions. I know this is possible; it is done multiple times in the core language itself. As a specific example, how would I define the define-struct macro in Scheme itself. It needs to create make-struct, struct-<<field>>, etc functions. I tried doing this using define, however, this only defines the function in the macro's lexical scope. How can I actually define a function in a macro?

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  • Windows Forms: Enable/Disable WS_CLIPCHILDREN

    - by Agnel Kurian
    How do I turn on/off the WS_CLIPCHILDREN window style in a Windows Forms parent control? I would like to display some text on top of the child control after it has painted. In my parent control, this is what I have: class Parent : public Control { void Parent::OnPaint(PaintEventArgs ^e){ Control::OnPaint(e); // parent draws here // some drawing should happen over the child windows // in other words, do not clip child window regions } }; On checking with Spy++ I find that the parent has the WS_CLIPCHILDREN window style enabled by default. What is the Windows Forms way to turn this off? Note: Sample code is in C++/CLI but I have tagged this C# for visibility... language is immaterial here. Feel free to translate the code to C#.

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  • Is it possible to access a Silverlight control via the COM automation model?

    - by dlanod
    What I'm trying to attempt is to access methods on a Silverlight control via the COM automation model. Theoretically it should be possible, as exposing the Silverlight control's methods as scriptable members exposes them through an IDispatch interface. I have been able to access the IDispatch interface through the automation model correctly but when I attempt to call a method on the exposed interface via Invoke it crashes. I was wondering if anyone knew whether this was expected behaviour, i.e. I'm violating some basic sandboxing requirement, or whether this should work and it is just something in my implementation that needs correcting? Cheers.

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  • Is it possible to get an NSView to pass rightMouseDown: to the next responder without subclassing?

    - by Benedict Cohen
    I have a view which contains a few subviews: mainView subViewA subViewB SubViewC mainView is an NSView constructed from a nib and is controlled with an NSViewController subclass. The subviews are standard views such as NSTextField and NSImageView and are configured to be non-editable. I want mainView to receive rightMouseDown: even when the event is triggered in one of the subviews. The default implementation of rightMouseDown: in NSResponder passes the event to the next responder, but NSView changes the default behaviour and does not pass it to the next responder. I could subclass all of the subviews but this doesn't seem like a very elegant or maintainable solution. How can I get the subviews to pass rightMouseDown: messages to the next responder without subclassing all of the subviews?

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  • Too many argumants for function

    - by Stas Kurilin
    I'm starting learning Lisp with Java background. In SICP's exercise there is many tasks where students should create abstract functions with many parameters, like (define (filtered-accumulate combiner null-value term a next b filter)...) in exercise 3.11. In Java (language with safe, static typing discipline) - method with more than 4 arguments usually smells, but in Lisp/Scheme it doesnt, does it? I'm wandering how many arguments do you use in you functions? If you use it in production, do you make such many layers?

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  • Rub, regex, sentences

    - by Perello
    I'm currently building a code generator, which aim to generate boiler plate for me once i wrote the templates and/or translations, whatever the language i have to work with, and it has an educationnal part :p. So i have a problem with a regex in ruby. The regex aim to select whatever is between {{{ and }}}, so i can generae functions according to my needs. My regex is currently : /\{\{\{(([a-zA-Z]|\s)+)\}\}\}/m My test data set {{{Demande aaa}}} = {{{tagadatsouintsouin tutu}}} The results are : [["Demande aaa", "a"], ["tagadatsouintsouin tutu", "u"]] So the regex pick each time the last character twice. But, that's not exactly what i want, my need is more about this : /\{\{\{((\w|\W)+)\}\}\}/m But this as a flaw too, the results : [["Demande aaa}}} = {{{tagadatsouintsouin tutu", "u"]] Whereas, i wish to get [["Demande aaa"],["tagadatsouintsouin tutu"]] Any ideas to correct theses regex ? I could use 2 sets of delimiters, but it won't learn me anything.

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  • Using Recaptcha with EPiServer XForms

    - by Andy
    Hi, Does any one have experiense of using Recaptcha with XForms in EPiServer? I don't know where to put the Recaptcha control and how to make it work. The sample code for ASP.NET is the code below. Where should i put it. My guess is in the FormControl_BeforeSubmitPostedData? <%@ Page Language="VB" % <%@ Register TagPrefix="recaptcha" Namespace="Recaptcha" Assembly="Recaptcha" % Sub btnSubmit_Click(ByVal sender As Object, ByVal e As EventArgs) If Page.IsValid Then lblResult.Text = "You Got It!" lblResult.ForeColor = Drawing.Color.Green Else lblResult.Text = "Incorrect" lblResult.ForeColor = Drawing.Color.Red End If End Sub

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  • Control.EndInvoke resets call stack for exception

    - by Brian Rasmussen
    I don't do a lot of Windows GUI programming, so this may all be common knowledge to people more familiar with WinForms than I am. Unfortunately I have not been able to find any resources to explain the issue, I encountered today during debugging. If we call EndInvoke on an async delegate. We will get any exception thrown during execution of the method re-thrown. The call stack will reflect the original source of the exception. However, if we do something similar on a Windows.Forms.Control, the implementation of Control.EndInvoke resets the call stack. This can be observed by a simple test or by looking at the code in Reflector. The relevant code excerpt from EndInvoke is here: if (entry.exception != null) { throw entry.exception; } I understand that Begin/EndInvoke on Control and async delegates are different, but I would have expected similar behavior on Control.EndInvoke. Is there any reason Control doesn't do whatever it is async delegates do to preserve the original call stack?

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  • Website downloader library

    - by Midhat
    I need to put a little project together for myself, and I need some functionality to download a page for offline viewing. Is there a library that will download a given page and its embedded images, and edit the img tags to reflect the local locations of the images. I know there are a lot of website downloaders out there, but I cant find something that i can use directly in my code. I have some basic scripts done in python, so Python is very welcome. but pretty much any language will do.

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  • Error Message: Could not load type 'Global.Apps.Forms.NewVehicleRegistration.NewVehicleReg'.

    - by user279521
    I am getting an error message, and I not quite sure where the issue would be; Any ideas? Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately. Parser Error Message: Could not load type 'Global.Apps.Forms.NewVehicle.NewVehicleReg'. Source Error: Line 1: <%@ Page Language="C#" EnableViewState="false" AutoEventWireup="true" CodeBehind="NewVehicleReg.aspx.cs" Inherits="Global.Apps.Forms.NewVehicle.NewVehicleReg" %> Line 2: Line 3: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> Source File: /globalprocurement/apps/Forms/NewVehicle/NewVehicleReg.aspx Line: 1 -------------------------------------------------------------------------------- Version Information: Microsoft .NET Framework Version:2.0.50727.3082; ASP.NET Version:2.0.50727.3082

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  • How can i group and display facebook comments done with FB comments plugin on different pages (same page in different languages)?

    - by user1061544
    I use the Facebook comment plugin on my multilingual website. My website's URL contains website language and when someone comments on example.com/en/page.html it is not visible for user who is viewing the same page in French example.com/fr/page.html I want to display all comments done on the page in different languages (different URLs in this case). How can do that?. This is the comment code as it is described here. <div class="fb-comments" data-href="example.com/fr/page.html" data-num-posts="2" data-width="630"></div>

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  • Any way to get read timeouts with Java NIO/selectors?

    - by mmebane
    I'm converting a Java server application which used blocking IO and thread-per-client to NIO and a single IO thread (probably a thread pool after I get the basic implementation done). The one thing I am having an issue with is disconnecting clients after they have been idle for a period. I had previously been using SO_TIMEOUT and blocking reads. However, with selector-based IO, reads don't block... I was hoping that I'd be able to set a timeout and be able to select on read timeout, with something like SelectionKey.isReadTimeout(), but nothing like that seems to exist. The current best solution I have come up with is to have a Timer with a TimerTask which keeps track of the keys which are waiting on read, and then canceling them and re-scheduling them on each read. Is there a better solution?

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