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Articles indexed in May 2010

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  • What is the best approach for creating a Common Information Model?

    - by Kaiser Advisor
    Hi, I would like to know the best approach to create a Common Information Model. Just to be clear, I've also heard it referred to as a canonical information model, semantic information model, and master data model - As far as I can tell, they are all referring to the same concept. I've heard in the past that a combined "top-down" and "bottom-up" approach is best. This has the advantage of incorporating "Ivory tower" architects and developers - The work will meet somewhere in the middle and usually be both logical and practical. However, this involves bringing in a lot of people with different skill sets. I've also seen a couple of references to the Distributed Management Task Force, but I can't glean much on best practices in terms of CIM development. This is something I'm quite interested in getting some feedback on since having a strong CIM is a prerequisite to SOA. Thanks for your help! KA Update I've heard another strategy goes along with overall SOA implementation: Get the business involved, and seek executive sponsorship. This would be part of the "Top-down" effort.

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  • Uiimport does not save variable to base workspace

    - by Tim
    I tried using uiimport to load a file to the base workspace.....It worked first time....but after trying again after a while...I wasnt seeing the variable in the base work space. I used the default variable name which is given by 'uiimport". This was the command I used: uiimport(filename) And two variables where created by default..."data" and "textdata"(which is the header)....but now when i run it is no longer saved in the base workspace I do not want to assign a variable to the uiimport like so... K = uiimport(filename) assignin(base,'green',K) I do not want to do that because My dataset has a text header and the data itself, and doing this would assign both "textdata" and "data" to "green" variable How would I be able to get the dimensions of ONLY the "data" in green and how would I pass only "data"(which is in the green variable in the workspace.."rmbr"...the green variable holds both "data" and "textdata") to another function. I was able to do all this when the uiimport automatically saved the variables in the base workspace....but somehow now it doesn't. I would appreciate any help or tips on this matter

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  • Is derived table executed once or three times?

    - by AspOnMyNet
    Every time you make use of a derived table, that query is going to be executed. When using a CTE, that result set is pulled back once and only once within a single query. Does the quote suggest that the following query will cause derived table to be executed three times ( once for each aggregate function’s call ): SELECT AVG(OrdersPlaced),MAX(OrdersPlaced),MIN(OrdersPlaced) FROM ( SELECT v.VendorID, v.[Name] AS VendorName, COUNT(*) AS OrdersPlaced FROM Purchasing.PurchaseOrderHeader AS poh INNER JOIN Purchasing.Vendor AS v ON poh.VendorID = v.VendorID GROUP BY v.VendorID, v.[Name] ) AS x thanx

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  • What kind of data belongs in a view model?

    - by Byron Sommardahl
    The name "view model" suggests that it models the data for the view. That much is obvious. What else can or should go in the view model? As an example, a view might display a list of items in a shopping cart, fields for customer's credit card info, and fields for customer's billing information. The view model might contain properties for all that OR it might only contain properties for the shopping cart items.

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  • Password verification; Is this way of doing it safe?

    - by Camran
    I have a classifieds website, where everybody may put ads of their products. For each classified, the user has to enter a password (so that they can delete the classified whenever they wish). So basically, when somebody wants to delete a classified, they click on the classified, click on the delete button, and enter the pass. I use MySql as a database. I use this code basically: if ($pass==$row['poster_password']) where row[poster_password] is fetched from MySql... What do you think? Thanks

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  • How to let users post links/images to Facebook, Twitter, Buzz etc... from a Rails based website?

    - by wgpubs
    I'd like to offer users the ability to post images / links to articles from my web application to Facebook, Twitter, Buzz and any other social network. A perfect example of the functionality I'm trying to replicate is mashable.com ... where each social network is represented by an icon that a) shows the number of shares AND b) allows users to click on it to post to that specific network. Don't know if it matters ... but the site is built using RoR. Thanks

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  • extract a specific part from a html document , php cURL , php, preg_match

    - by user331071
    Hello ! I'm trying to extract some information from a webpage using php cURL+preg_match or any other function but for some reasons it doesn't work at all . For example from this page http://www.foxtons.co.uk/search?location_ids=1001-29&property_id=712128&search_form=map&search_type=LL&submit_type=search I want to extract the title which is "4 bed house to rent, Caroline Place, Bayswater, W2", the price which is "2,300" and the description which starts at "This fantastic..." and ends at "(Circle and District Lines). " I tried to use php cURL + dom but I'm getting a lot of errors like this "htmlParseEntityRef: expecting ';' in Entity, line: 243" and no result displayed Also I tried to use preg_match or preg_match_all but doesn't work either . A very basic example would be highly appreciated ! thank you !

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  • Ruby On Rails Routes

    - by Kezzer
    I can't figure out how to get the following routes. Here's an extract from my routes.rb file: map.resources :treatments map.root :controller => "home" map.connect ':controller/:action/:id' map.connect ':controller/:action/:id.:format' map.connect ':action', :controller => 'home' # replaces the need to manually map pure actions to a default controller map.resources :bookings map.resource :dashboard map.resource :home Now I do realise that the ordering matters, but I can't seem to get them to work correctly. What I want is so http://localhost:3000/bookings/new actually takes you to an action http://localhost:3000/bookings/signmeup if you're either not signed in, or haven't got a login. The problem is that if I change my routes around, when I attempt to create a new booking after I have logged in, then it doesn't POST the form submission and just takes me back to the view page. This is definitely because of the routes as if I rearrange map.resources :bookings to be before all of them, then it works. Any ideas?

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  • Using interfaces in java..Newb question

    - by Rahul
    Suppose there in an interface Displaceable and a class Circle which implements Displaceable. Displaceable has a method named move() which of course is implemented in Circle. What would happen in the following scenario? Circle a = new Circle(..); Displaceable b = a; b.move() Would the object refer to the Circle's move method?

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  • How to get the first non-null value in Java?

    - by froadie
    Is there a Java equivalent of SQL's COALESCE function? That is, is there any way to return the first non-null value of several variables? e.g. Double a = null; Double b = 4.4; Double c = null; I want to somehow have a statement that will return the first non-null value of a, b, and c - in this case, it would return b, or 4.4. (Something like the sql method - return COALESCE(a,b,c)). I know that I can do it explicitly with something like: return a != null ? a : (b != null ? b : c) But I wondered if there was any built-in, accepted function to accomplish this.

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  • Uploading XML with NSInputStream Iphone....

    - by Aks
    Hi, I have to upload XML string to server & the Web service expect it in body stream part of the http request. So i am allocating the NSInputstream instance with xml data & then setting it the part of the http string but it uploading the stream body NULL & in my code if check the Stream status, it gives error & size null, Could you let me know how to get it done , also pasting the code. Code: NSInputStream* stream = [[[NSInputStream alloc]initWithData:streamData]retain]; request=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:nss_url]]; NSString *msgLength = [NSString stringWithFormat:@"%d", [message length]]; [request addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"]; [request addValue: @"http://www.XYZ.COM/ACL" forHTTPHeaderField:@"SOAPAction"]; [request addValue: msgLength forHTTPHeaderField:@"Content-Length"]; [request setHTTPBodyStream:[NSInputStream inputStreamWithData:streamData]]; [request setHTTPMethod:@"POST"]; NSLog(@"The input stream is %@ & error is %@",[stream streamStatus],[stream streamError]); Its gives: The input stream is (null) & error is Error Domain=NSUnknownErrorDomain Code=0 "Operation could not be completed. (NSUnknownErrorDomain error 0.)" Any inputs what I am missing ..........

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  • Email Validation... advocating the use of +, and how embarrassed would you be to have written this?

    - by Langdon
    I take full advantage of GMail's wildcard feature ([email protected]). Unfortunately it seems that most developers don't understand that + is valid in an email address. This makes trying to unsubscribe a real chore sometimes. Take TicketMaster for example... immediately you notice that they didn't even bother escaping the email address, so the text field defaults to "user [email protected]". Not a problem, we can just add the + manually. Once Submit is clicked, you'll notice the validation stops you right in your tracks. What now? Most users would have to further contact TicketMaster and attempt to explain the situation. I opened up FireBug to investigate. That's when I noticed this whopping 74 line email validation function with so much redundancy it's ridiculous. My favorite check is on line 20, informing the user that his/her email cannot have more than one @. Unreal. My second favorite part is the TWO regular expressions used! Imagine... someone was paid money for this... and by the looks of it, they were paid by the line count. //Validates the email function validateOptoutEmail(object) { var emailStr = object.value; if(emailStr == '' || emailStr == null) { alert('Email can not be empty. Please provide email'); object.value = ''; object.focus(); return false; } else if(Trim(emailStr).length == 0) { alert('Email can not be empty. Please provide email'); object.value = ''; object.focus(); return false; } else { var atcount=0; for(var i=0;i<emailStr.length;i++) { if(emailStr.charAt(i)=='@') atcount++; } if(atcount>1) { alert('Invalid email. Email cannot have more than one @'); object.value = ''; object.focus(); return false; } if(emailStr.indexOf('.') == -1) { alert('Invalid email. Email must have one dot'); object.value = ''; object.focus(); return false; } if(emailStr.indexOf('..')!= -1) { alert('Invalid email. Email cannot have consecutive dots'); object.value = ''; object.focus(); return false; } var dotpos=0; for(var i=dotpos;i< emailStr.length;i++) { var ichar=emailStr.charAt(i); if(ichar=='.') dotpos=i; } for(var i=dotpos+1;i< emailStr.length;i++) { var ichar=emailStr.charAt(i); if((!isNaN(ichar)) || (ichar == '_')) { alert('Invalid email. Email cannot have numbers or _ after dot'); object.value = ''; object.focus(); return false; } } var pattern2=/^([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/; var pattern1=/^[0-9a-zA-Z\-\_.]+@\w+([\.-]?\w+)*(\.\w{2,4})+$/; if (pattern1.test(emailStr)) { if(pattern2.test(emailStr)) { return true; } else { alert('Invalid email'); object.value = ''; object.focus(); } return true; } else { alert('Invalid email'); object.value = ''; object.focus(); return false; } alert('Invalid email'); object.value = ''; object.focus(); return false; } } I eventually just put a break point in FireBug and changed the value of the email address passed into the validation function. From there everything worked fine... All that said, how can we get the word out there that + is valid in an email address? Too often, I'm unable to use the email address that I want to use for certain web sites because developers simply aren't aware of what constitutes a valid email address.

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  • ASP.NET - dynamically creating database connection in datasets

    - by Foo
    I am currently using datasets for my data access layer. I currently store the connection string in the web.config file. I need the ability to change the connection to another database before any queries are processed. Is there an event that is triggered or a base class that can be modified that intercepts the process of retrieving the connection string from the web.config file? Is there any way to handle multiple database connections using the same code base and also take advantage of the connection pooling? I understand the best method is to get rid of datasets and use custom data objects. Any ideas?

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  • Need help with a Linq XML conditional grouping query

    - by FiveTools
    I have the following xml fragment: <BANNER ID="Banner 2" ROW_WIDTH="200"> <BANNER_TEXTS ID="BANNER_TEXTS"> <BANNER_TEXT UNDERLINE="false" SPAN_COL="1" WIDTHT="78px"></BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="3" WIDTHT="234px">Years In Practice</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="3" WIDTHT="234px">Internet Usage</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="4" WIDTHT="312px">Sales Reps Seen / Week</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="3" WIDTHT="234px">Prescription Volume</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="3" WIDTHT="222px">Patient Load</BANNER_TEXT> </BANNER_TEXTS> <BANNER_TEXTS ID="COLUMN_TEXTS"> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">Total</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">&#60; 11 years</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">11-20 years</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">21-30 years</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">Light 1-5 hrs</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">Medium 6-10 hrs</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">Heavy &#62;10 hrs</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">0</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">1-2</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">3-5</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">&#62;5</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">1-100</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">101-150</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="78px">&#62;150</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="74px">1-100</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="74px">101-200</BANNER_TEXT> <BANNER_TEXT UNDERLINE="true" SPAN_COL="1" WIDTHT="74px">&#62;200</BANNER_TEXT> </BANNER_TEXTS> <BANNER_TEXTS ID="COLUMN_TEXTS"> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(A)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(B)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(C)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(D)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(E)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(F)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(G)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(H)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(I)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(J)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(K)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(L)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(M)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(N)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(O)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(P)</COLUMN_TEXT> <COLUMN_TEXT UNDERLINE="false" SPAN_COL="1">(Q)</COLUMN_TEXT> </BANNER_TEXTS> </BANNER> I would like to group all the 'BANNER_TEXT' in the second sequence using the first sequence 'BANNER_TEXT' as the key (only include elements where string is not null or empty). The span_col attribute in the first 'BANNER_TEXT' sequence indicates which elements by position in the 2nd sequence are related. An example: 'Years in Practice' would be the first key and the attribute SPAN_COL=3 for that element indicates it would contain '< 11 years', '11-20 years', '21-30 years' (the first grouping of string.empty = Total would be skipped).

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  • What are the advantages of a query using a derived table(s) over a query not using them?

    - by AspOnMyNet
    I know how derived tables are used, but I still can’t really see any real advantages of using them. For example, in the following article http://techahead.wordpress.com/2007/10/01/sql-derived-tables/ the author tried to show benefits of a query using derived table over a query without one with an example, where we want to generate a report that shows off the total number of orders each customer placed in 1996, and we want this result set to include all customers, including those that didn’t place any orders that year and those that have never placed any orders at all( he’s using Northwind database ). But when I compare the two queries, I fail to see any advantages of a query using a derived table ( if nothing else, use of a derived table doesn't appear to simplify our code, at least not in this example): Regular query: SELECT C.CustomerID, C.CompanyName, COUNT(O.OrderID) AS TotalOrders FROM Customers C LEFT OUTER JOIN Orders O ON C.CustomerID = O.CustomerID AND YEAR(O.OrderDate) = 1996 GROUP BY C.CustomerID, C.CompanyName Query using a derived table: SELECT C.CustomerID, C.CompanyName, COUNT(dOrders.OrderID) AS TotalOrders FROM Customers C LEFT OUTER JOIN (SELECT * FROM Orders WHERE YEAR(Orders.OrderDate) = 1996) AS dOrders ON C.CustomerID = dOrders.CustomerID GROUP BY C.CustomerID, C.CompanyName Perhaps this just wasn’t a good example, so could you show me an example where benefits of derived table are more obvious? thanx

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  • Get Eclipse to recognize the maps api

    - by NickTFried
    Hi I'm developing an Android app and trying to incorporate maps into one of my sub-activities. Having followed all of the instructions from Android, my java file will not recognize the "MapActivity" or the import statements to include the needed api. Here is my XML manifest and my class file. <?xml version="1.0" encoding="utf-8"?> <uses-permission android:name="android.permissions.INTERNET"/> <uses-permission android:name="android.permissions.ACCESS_FINE_LOCATION"/> <application android:icon="@drawable/icon" android:label="@string/app_name"> <uses-library android:name="com.google.android.maps" /> <activity android:name=".CadetCommand" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name="RedLight"></activity> <activity android:name="PTCalculator"></activity> </application> <uses-sdk android:minSdkVersion="7"/> here is my java file: package edu.elon.cs.mobile; import com.google.android.maps.MapActivity; import com.google.android.maps.MapView; import android.os.Bundle; public class LandNav extends MapActivity{ } Any suggestion would help.

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  • What do these "Cron Daemon" email errors mean?

    - by Meltemi
    Anyone know what this means? Getting one of these every minute in one user's inbox: From: Cron Daemon <[email protected]> Subject: Cron <joe@mail> /tmp/.d/update >/dev/null 2>&1 To: [email protected] Received: from murder ([unix socket]) by mail.domain.com (Cyrus v2.2.12-OS X 10.3) with LMTPA; Tue, 04 May 2010 10:35:00 -0700 shell-init: could not get current directory: getcwd: cannot access parent directories: Permission denied job-working-directory: could not get current directory: getcwd: cannot access parent directories: Permission denied

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  • There are currently no logon servers available to service the logon request

    - by Adriaan
    I am the guy that was closest to the server :( and am actually a developer. I am getting this error, There are currently no logon servers available to service the logon request, when a machine on the domain is trying to be accessed from other machines from the network. Accessing other machines from this machine works as expected. How should I go about to fix this? We are running a Windows Server 2003 and XP Pro clients.

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