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  • How to catch 'exceptions' for out of order execution in Workflow Foundation 4?

    - by Alex Key
    Hi, I am attempting to model a worklfow using a "WCF Workflow Service" in .net / vs 2010 that needs to handle out of order execution gracefully (but not allow it - if thath makes sense!?) For example I have 2 receive activities one called Initialize and the other called GetValue inside a FlowChart. In most cases Initialize should be called first and GetValue after (as modled in the flow chart). However if GetValue is executed before Initialize I do not want to return an "out of order" exception (although when I look at the WCF test client, I can't actually see an exception). But instead a custom exception saying something like "you must initialize first". In theory I could model this with lots of parallel activities and conditions to check if Initialized / Running / Terminated etc. But the business process I am modelling if very very similar to a state machine... except it must handle people executing things in the wrong order. Ideally I would like to catch the "out of order" exception (thought I don't think it's really an exception as such), check the 'exception' to see which function was attempted to run and then handle it. I have done some research around enabling AllowBufferedReceive. However I don't want to be able to execute out of order (I don't think), but instead give a detailed response if it does happen. I've looked at the new beta state machine template for WF 4 - but i'm not sure if it does what i'm after? I'm not sure if I have the wrong end of the stick, so any help would be greatly appreciated. [EDIT] To help clarify... Sorry it's a tricky one to explain. The standard I am trying to implement (the e-learning standard SCORM RTE) is structured like a state machine i.e. certain functions can only be executed in certain states. However the standard specifies that if the calling clients tries to execute a function that it is not meant to, then a warning should be issued... for example "you cannot use GetValue(), because you have not yet Initialized". Ideally I'd like to structure the workflow as the theoretical state machine and not need to have to use multiple if/else's to handle all the scenarios where something could be executed out-of-order. I'd like to catch a out-of-order exception (but I don't think there is such an exception - as it's not in the debugger) and rethrow it.

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  • Why can't I build this Javascript object?

    - by Alex Mcp
    I have an object I'm trying to populate from another object (that is, iterate over a return object to produce an object with only selected values from the original). My code looks like this: var collect = {}; function getHistoricalData(username){ $.getJSON("http://url/" + username + ".json?params", function(data){ for (var i=0; i < data.length; i++) { console.log(i); collect = { i : {text : data[i].text}}; $("#wrap").append("<span>" + data[i].text + "</span><br />"); }; console.log(collect); }); } So I'm using Firebug for debugging, and here's what I know: The JSON object is intact console.log(i); is showing the numbers 1-20 as expected When I log the collect object at the end, it's structure is this: var collect = { i : {text : "the last iteration's text"}}; So the incrementer is "applying" to the data[i].text and returning the text value, but it's not doing what I expected, which is create a new member of the collect object; it's just overwriting collect.i 20 times and leaving me with the last value. Is there a different syntax I need to be using for assigning object members? I tried collect.i.text = and collect[i].text = and the error was that whatever I tried was undefined. I'd love to know what's going on here, so the more in-depth an explanation the better. Thanks!

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  • Problems when data save on database by Hibernate

    - by alex
    Hi; I'm trying do save data to database by help of Hibernate , in Java. But when i run codes , i had lot of problems. Can anyone help me about that? Thanks... My code: package org.ultimania.model; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.Transaction; import org.hibernate.cfg.Configuration; public class Test { public static void main(String[] args) { Session session = null; SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory(); session = sessionFactory.openSession(); Transaction transaction = session.getTransaction(); BusinessCard card = new BusinessCard(); card.setId(1); card.setName("Özgür"); card.setDescription("Aciklama"); try{ transaction.begin(); session.save(card); transaction.commit(); } catch(Exception e){ e.printStackTrace(); } finally{ session.close(); } } } Problems : SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/impl/StaticLoggerBinder at org.slf4j.LoggerFactory.getSingleton(LoggerFactory.java:223) at org.slf4j.LoggerFactory.bind(LoggerFactory.java:120) at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:111) at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:269) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:242) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:255) at org.hibernate.cfg.Configuration.(Configuration.java:152) at org.ultimania.model.Test.main(Test.java:14) Caused by: java.lang.ClassNotFoundException: org.slf4j.impl.StaticLoggerBinder at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 8 more

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  • Debugging CodeIgniters 404 errors

    - by Alex
    I'm having a nightmare uploading my site to the production server. The site runs fine locally and on a staging server (exactly the same server, settings as the production site). However when I deploy to production I'm getting a 404 error from CI. CodeIgniters 404 error pages are frustrating because it seems as if i can't access other libraries from them. How can I go about debugging the error? See which controller is trying to be called etc.

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  • Dynamic Linq query issue

    - by Alex
    Hey All, Im trying to query the Netflix OData feed. I have the following query that works fine in LinqPad: from g in Genres from t in g.Titles where g.Name == "Horror" && t.AverageRating == 2 && t.ReleaseYear == 2004 select t But, when I move it over to my Silverlight app, the user selects what to search on so I may or may not have all of the params. That being the case, I need to construct the query at runtime. Ive looked the the Dynamic Query stuff and that will do fine...the issue that I have is that I need an initial acceptable query to append to and this doesn't fly: from g in Genres from t in g.Titles select t; Any additional thoughts would be appreciated. Thanks in advance

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  • Regex pattern for searches with include and exclude

    - by alex-kravchenko-zmeyp
    I am working on a Regex pattern for searches that should allow optional '+' sign to include in the search and '-' sign to exclude from the search. For example: +apple orange -peach should search for apples and oranges and not for peaches. Also the pattern should allow for phrases in double quotes mixed with single words, for example: "red apple" -"black grape" +orange - you get the idea, same as most of the internet searches. So I am running 2 regular expressions, first to pick all the negatives, which is simple because '-' is required: (?<=[\-]"?)((?<=")(?<exclude>[^"]+)|(?<exclude>[^\s,\+\-"]+)) And second to pick positives, and it is a little more complex because '+' is optional: ((?<=[\+\s]")(?<include>[^\s"\+\-][^"]+))|(?<include>(?<![\-\w]"?)([\w][^,\s\-\+]+))(?<!") Positive search is where I am having a problem, it works fine when I run it in RegexBuddy but when I try in .Net the pattern picks up second word from negative criteria, for example in -"black grape" it picks up word 'grape' even though it ends with double quote. Any suggestions?

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  • How to group photos in Wordpress?

    - by alex
    Hi, For a custom theme template i like to use particular photos i have uploaded. I just need x rows of 4 images. So i was thinking of using a loop for images which belong to photo Album..... But in WP i can't find a place where i can group images i am using 2.9.2 Any tips how to fix this??

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  • Loading CI controller in PHP on the same server

    - by Alex
    How can include CodeIgniter content in a regular PHP page on the same server but not part of the CI app? For example I'm am trying to load a header from CI into Wordpress. Whats the best way to include a CI controller (eg; index.php/mycontroller/header/) on the same server?

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  • How do I SEO these keywords?

    - by alex
    I am building a music album search engine. My questions are: How do I figure out which keywords people search the most? Do they search "music album" the most, or "album music" the most? What tool can I use to get this stats? Should I position my website to what people search the most? What about competitors? Please give me some tips on whether I should have the title "music album" or "album search" , depending on number of keyword searches.

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  • Examples of how to visualize a versioning system?

    - by Alex Gilbert
    My shop is trying to formalize the release management process for an OSS product we maintain. It's a sort of a web development framework/CMS kind of thing, as in it's a product that other projects are built on top of. This makes clear communication about the versioning system especially critical for developers that are using the tool. I'm hoping to find some examples of how best to graph this system so we can communicate it better internally and with outside developers. I know there are lots of standards and best practices around versioning, so I'm hoping this extends to some sort of visual vocabulary as well. As one example, there is a nifty graph at http://en.wikipedia.org/wiki/Versioning#Software_Versioning_schemes. Are there any guides out there on how these sorts of things should be designed?

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  • Documenting Objective C classes, methods and variables

    - by Alex Reynolds
    What are good approaches to documenting ObjC classes, variables and methods, esp. for automated, downstream class creation, documentation creation, and general integration with Xcode? As an example, I like to use: #pragma mark - #pragma mark UITextField delegate methods for demarcating chunks of code of interest, for quick access from within Xcode.

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  • Sql Server 2008 Cross-database table linking (relationships)

    - by Alex
    Hi guys, I have a bit of an issue, and to be honest I don't think there's an answer, but I'll give it a try anyway. So I have two databases [A]-Company and [B]-Product. Both databases have a Country table which is then linked to other tables in each individual database. The problem is that the data between the two Country tables is a complete duplicate. So, I essentially have to duplicate some of the relationships in each database, and maintenance on top of that is just difficult... So, I'm curious is there a way to create a cross-database relationship between tables so I can have only one set of Country+Helper tables that govern both databases? Thanks in advance!

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  • PayPal $0 Dollar Transaction?

    - by Alex
    Hi. I have a client who wants a paypal shopping cart. All of the services have "Buy Now" buttons, all with different prices. However, there is one service, which is a FREE 0 dollar service. The client wants the "Buy Now" button to remain there, to be consistent with the rest of the site. Does anyone know how I can do a $0 dollar transaction with paypal? I can't find any insight on this being possible. Thanks.

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  • Trouble getting Flash socket policy file to work.

    - by Alex
    Basically I'm using Flash to connect to a Java server. Despite my Java application replying to the , in the Flash debug log it lists (not sure about the order as there are lots): * Security Sandbox Violation * Connection to 192.168.1.86:4049 halted - not permitted from http://127.0.0.1:8888/Current/wander.swf Warning: Timeout on xmlsocket://192.168.1.86:4049 (at 3 seconds) while waiting for socket policy file. This should not cause any problems, but see http://www.adobe.com/go/strict_policy_files for an explanation. Error: Request for resource at xmlsocket://192.168.1.86:4049 by requestor from http://127.0.0.1:8888/Current/wander.swf is denied due to lack of policy file permissions. What I don't understand is, the server (port 4049) receives the request, outputs the policy file and then closes the connection, surely it shouldn't time out? The policy file I'm using is: <?xml version="1.0"?> <cross-domain-policy><allow-access-from domain="*" to-ports="*" /> </cross-domain-policy>

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  • How do I avoid web method parameters using proxy classes?

    - by Alex Angas
    I have a serializable POCO called DataUnification.ClientData.ClientInfo in a .NET class library project A. It's used in a parameter for a web service defined in project B: public XmlDocument CreateNewClient(ClientInfo ci, string system) I now wish to call this web method from project C and use the original DataUnification.ClientData.ClientInfo type in the parameter. However due to the generated proxy class it has now become a different type: WebServices.ClientDataUnification.DataUnificationWebService.ClientInfo. As far as .NET is concerned these are not the same types. How can I get around this?

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  • Call jquery datepicker from link and send the date through a post call

    - by Alex
    Hi all, I need to make the datepicker show when I click on a link and then send the selected date to a different page through a post call. T tried to use this code for the link call: $(".click-on-link").click(function(){ $('#datepicker').datepicker({ changeMonth: true, changeYear: true, dateFormat: 'dd/mm/yy', firstDay: 1 }); }); but it's not working. Any idea? Thanks!

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  • Problem with virtual mouse click

    - by Alex
    Hi. I have a program that simulates mouse click. Code is something like this: [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] public static extern void mouse_event(long dwFlags, long dx, long dy, long cButtons, long dwExtraInfo); private const int MOUSEEVENTF_LEFTDOWN = 0x02; private const int MOUSEEVENTF_LEFTUP = 0x04; public static void DoMouseClick(int x, int y) { Cursor.Position = new Point(x, y); mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, x, y, 0, 0); } This code works perfectly. For example I call this function every 30 minutes. But if I press WINKEY+L (Windows is locked) only cursor is moved but not press occurs. Any ideas?

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  • Attention JavaScript gurus: Need a hand with setInterval()

    - by alex
    I am trying to make a non interactive display for a real estate shop window. It's been a while since I've played with setInterval(). The first time my script steps through, it is fine. But when it tries to get the next property via getNextProperty(), it starts to go haywire. If you have Firebug, or an equivalent output of console.log(), you'll see it is calling things it shouldn't! Now there is a fair bit of JavaScript, so I'll feel better linking to it than posting it all. Store Display Offending JavaScript It is worth mentioning all my DOM/AJAX is done with jQuery. I've tried as best to make sure clearInterval() is working, and it seems to not run any code below it. The setInterval() is used to preload the next image, and then display it in the gallery. When the interval detects we are at the last image ((nextListItem.length === 0)), it is meant to clear that interval and start over with a new property. It has been driving me nuts for a while now, so anyone able to help me? It is probably something really obvious! Many thanks!

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  • How do I get the CSS of this element?

    - by alex
    http://www.zurb.com/blog_uploads/0000/0617/buttons-03.html Is you go to this website. Scroll down to "Using the Button Element". Then the first black button called "Super Awesome button" What is the full CSS for this? Just one class. I want all the attributes of this. Is there any way to see it , just one class? In firebug it has a lot of things...and I can't put them together.

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