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• realtime collaborative editing: mobwrite on windows7 x64

  - by collabwriter

  I have set up Mobwrite on my Win7 development machine using the daemon and q.py listener. The client test suite passes, but when I run the server test suite, everything fails with this sort of response: Question: U:user10259538167863824 f:0:unittest10259538167863824 R:0:Hello world Expected: u:user10259538167863824 F:0:unittest10259538167863824 D:0:=11 Actual: u:user10259538167863824 F:0:unittest10259538167863824 D:0:=11 Diff: u:user10259538167863824 ¶ F:0:unittest10259538167863824 ¶ D:0:=11¶ ¶ ¶ I am assuming it has something to do with line endings, but I don't know what to do. Can anyone shed some light on this? Thanks so much! PS: I'm running Python 2.7

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• Infopath - changing sql servers

  - by ScottStonehouse

  I have an InfoPath form which has sort of a master-detail pattern, with two tables in the underlying main datasource. I am trying to migrate this to a new SQL Server - same database, just moved from a SQL2005 machine to a SQL2008 machine. If I change the servername, it also wants me to change the database and tables. If I select the same database and master table, the bindings are maintains for the master table. But there doesn't appear to be a way to select multiple tables when you change the datasource, so you lose the detail bindings. Am I missing something - I'm pretty new to InfoPath.

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• Add a DoubleClickHandler to a FixedWidthGrid

  - by MArio

  Hello so I got a FixedWidthGrid table which is made from a pagingtable FixedWidthGrid dataTable = x.getDataTable(); I could add alot of handlers to the dataTables rows like selected or sort policies. but I cant add a double click handler ... anyway idea's ?! thank you I do have a class which I made to try to add a double click hander but it didn't work. class: public class DoubleClickTable extends FixedWidthGrid implements HasDoubleClickHandlers { public DoubleClickTable() { super(); } public HandlerRegistration addDoubleClickHandler(DoubleClickHandler handler) { return addDomHandler(handler, DoubleClickEvent.getType()); } } Thank you so much for your help.

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• Can I pass data into a HashMap<String,Object> from JSP to a JavaBean?

  - by Parris

  Hi Everyone, I am just starting out with JSP, Java, etc web development... I would love to use some sort of framework, but for this project I can't do that. In any case I want to potentially pass essentially limitless data (for flexibility) to my javabeans. My idea was if I can have key value pairs that would really easy. The values will always be strings or integers. HashMap seems ideal in this case. Is this possible? Any ideas? Can I do this with JSP Bean tags or should I write scriptlets? Thanks!!!

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• Mobile location tracking on Google maps.

  - by Muhammad Umar Siddique

  I need to develop a feature for one of my website by which user can track any mobile number on Google maps just like the link below. Go o the following link and enter the 9810098109 number in textbox to find its location on map. http://wwwa.way2sms.com/jsp/LocateMobile.jsp I want to know either this page is using a third party tool to get the latitude and longitude along with service provider and draw the map accordingly or its some sort of feature provided by Google ? Is there any freeware services to get this done ?

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• Passenger apache default page error

  - by Ganesh Shankar

  Sorry if this is the wrong place to ask this question. I asked it a couple of days ago on Server Fault but am getting no love. (It is sort of related to rails development...) The Question I just installed Passenger and the Passenger Pref Pane on OSX. However, when I try to browse to one of my Rails applications I just get the default Apache "it works!" page. I've checked the vhost definitions and they seem ok so I can't seem to figure out whats wrong... I've tried reinstalling passenger and the pref pane and restarting apache but to no avail. Anyone know how to fix this? My vhost definition looks like this: <VirtualHost *:80> ServerName boilinghot.local DocumentRoot "/Users/ganesh/Code/boilinghot/public" RailsEnv development <Directory "/Users/ganesh/Code/boilinghot/public"> Order allow,deny Allow from all </Directory> </VirtualHost>

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• Building big, immutable objects without using constructors having long parameter lists

  - by Malax

  Hi StackOverflow! I have some big (more than 3 fields) Objects which can and should be immutable. Every time I run into that case i tend to create constructor abominations with long parameter lists. It doesn't feel right, is hard to use and readability suffers. It is even worse if the fields are some sort of collection type like lists. A simple addSibling(S s) would ease the object creation so much but renders the object mutable. What do you guys use in such cases? I'm on Scala and Java, but i think the problem is language agnostic as long as the language is object oriented. Solutions I can think of: "Constructor abominations with long parameter lists" The Builder Pattern Thanks for your input!

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• Which is the most memory leak safe approach.

  - by MattC

  I have a table of frequently updated information. This is presented using a container div with a div for each row, each row containing 10 divs. I am using setInterval to call a an asmx webservice that returns some json formatted information. On the success callback I call $("#myContainer").empty(); on the container div and recreate the rows and 10 nested divs for each row's columns. This page may be left to run for a whole day, so I am wary of updating the DOM like this as I have noticed that memory does rise for the browser over time (IE8). The other approach I am considering is to add an idea to the row div. When new results process each item of data, look for the corresponding row, if it exists overwrite the data in each div. If it doesn't exist (new data for example), append the row. What approaches have others used for this sort of long lived pseudo realtime information display. TIA

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• Catching java.lang.OutOfMemoryError

  - by dotsid

  Documentation for java.lang.Error says: An Error is a subclass of Throwable that indicates serious problems that a reasonable application should not try to catch But as java.lang.Error is subclass of java.lang.Throwable I can catch this type of throwable. I understand why this is not good idea to catch this sort of exceptions. As far as I understand, if we decide to caught it, the catch handler should not allocate any memory by itself. Otherwise OutOfMemoryError will be thrown again. So, my question is: is there any real word scenarios when catching java.lang.OutOfMemoryError may be a good idea? if we catching java.lang.OutOfMemoryError how can we sure that catch handler doesn't allocate any memory by itself (any tools or best practicies)? Thanks a lot.

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• Hashes vs Numeric id's

  - by Karan Bhangui

  When creating a web application that some how displays the display of a unique identifier for a recurring entity (videos on YouTube, or book section on a site like mine), would it be better to use a uniform length identifier like a hash or the unique key of the item in the database (1, 2, 3, etc). Besides revealing a little, what I think is immaterial, information about the internals of your app, why would using a hash be better than just using the unique id? In short: Which is better to use as a publicly displayed unique identifier - a hash value, or a unique key from the database? Edit: I'm opening up this question again because Dmitriy brought up the good point of not tying down the naming to db specific property. Will this sort of tie down prevent me from optimizing/normalizing the database in the future? The platform uses php/python with ISAM /w MySQL.

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• Sorting NSSets of a core data entity - Objective-c

  - by ncohen

  Hi everyone, I would like to sort the data of a core data NSSet (I know we can do it only with arrays but let me explain...). I have an entity user who has a relationship to-many with the entity recipe. A recipe has the attributes name and id. I would like to get the data such that: Code: NSArray *id = [[user.recipes valueForKey:@"identity"] allObjects]; NSArray *name = [[user.recipes valueForKey:@"name"] allObjects]; if I take the object at index 1 in both arrays, they correspond to the same recipe... Thanks

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• ItemSearch totally different from Amazon.com search - What am I doing wrong?

  - by RadiantHex

  I'm using ItemSearch in order to get a list of books ordered by 'salesrank' aka 'bestselling', problem is that the books that pop up for any BrowseNode are totally different from the Amazon list. Test Case Author:"J R R Tolkien", SearchIndex:"Books", Sort:"salesrank" Using the API: J.R.R. Tolkien Boxed Set (The Hobbit and The Lord of the Rings) The Hobbit: 70th Anniversary Edition The Lord of the Rings: 50th Anniversary, One Vol. Edition The Legend of Sigurd and Gudrun The Silmarillion The Lord of the Rings The Children of Hurin The Fellowship of the Ring: Being the First Part of The Lord of the Rings The Return of the King: Being the Third Part of The Lord of the Rings Using Amazon.com Adv. Search: The Lord of the Rings (Trilogy) The Hobbit J.R.R. Tolkien Boxed Set (The Hobbit and The Lord of the Rings) The Legend of Sigurd and Gudrun The Lord of the Rings: 50th Anniversary, One Vol. Edition The Silmarillion The Fellowship of the Ring The Children of Hurin Lord of the Rings, The Return of the King, The (Vol 3) Help would very much appreciated

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• jqGrid - how to change title based on colModel sortable property

  - by Greg

  When the mouse hovers over each column I'd like the tooltip to indicate whether that column is sortable. I am able to change the title attribute with something like this: $("#List .ui-th-column").each(function(i) { var isSortable = i % 2; $(this).attr('title', isSortable ? "Not Sortable" : "Click header to sort."); }); I'd like to replace the demo expression 'i % 2' with a check of the colMode's sortable property, but I can't figure out how to get the value of the colModel's sortable property. colModel: [ { name: 'Name', index: 'Name', width: 100, sortable: true }, { name: 'Note', index: 'Note', width: 200, sortable: false } ] I've tried .getGridParam and .getColProp but I don't think the syntax I'm using is correct.

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• What the performance impact of enabling WebSphere PMI

  - by Andrew Whitehouse

  I am currently looking at some JProfiler traces from our WebSphere-based application, and am noticing that a significant amount of CPU time is being spent in the class com.ibm.io.async.AsyncLibrary.getCompletionData2. I am guessing, but I am wondering whether this is PMI-related (and we do have this enabled). My knowledge of PMI is limited, as this is managed by another team. Is it expected that PMI can have this sort of impact? (If so) Is the only option to turn it off completely? Or are there some types of data capture that have a particularly high overhead?

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• MSBuild Starter Kits...

  - by vdh_ant

  Hi guys Just wondering if anyone knows if there are any MSBuild starter kits out there. What I mean by starter kits is that from the looks of it most builds to kinda the same sort of steps with minor changes here and there (i.e. most builds would run test, coverage, zip up the results, produce a report, deploy etc). Also what most people in general want from a CI build, test build, release build is mostly the same with minor changes here and there. Now don't get me wrong i think that most scripts are fairly different in the end. But I can't help but think that most start out life being fairly similar. Hence does anyone know of any "starter kits" that have like a dev/CI/test/release build with the common tasks that most people would want that you can just start changing and modifying? Cheers Anthony

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• Artistic aspects of UI?

  - by anon

  Consider a single button. At one extreme, we have a black OpenGL window, with: outline (in white) of a rectangle bitmap remdered font inside of it, saying "Ok" At the other extreme, we have Mac OS X, a button that is: well rounded has some gradient showing light effects on it nice antialiased "OK" soft shadow of some sort These two UIs present very very different user experiences. The former says "This is from the 80s" the latter says "this is professional". This is something I do not understand well as a programmer (and don't know where to learn about this). Does anyone know of a good technical resource for this? [I'd prefer things that draws upon psychology / perception literature to say why to do something rather than design books that just says "use color XYZ with a gradient of blah"]

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• Does Extreme Programming Need Diagramming Tools?

  - by Ygam

  I have been experimenting with some concepts from XP, like the following: Pair Programming Test First Programming Incremental Deliveries Ruthless Refactoring So far so good until I had a major stump: How do I design my test cases when there aren't any code yet? From what basis do I have to design them? From simple assumptions? From the initial requirements? Or is this where UML diagrams and the "analysis phase" fits in? Just had to ask because in some XP books I've read, there was little to no discussion of any diagramming tool (there was one which suggested I come up with pseudocodes and some sort of a flowchart...but it did not help me in writing my tests)

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• Taking learning into account in a development process

  - by Thiago

  How to deal with the fact that you don't know the language/framework in a development process? For instance, suppose a group of Java developers are about to start a .NET project, they don't know the platform well and might end up finding solutions that the framework already solves or solves better. The sort of questions I have are: which are the best practices in this case? Is RTFM before going on a good pratice? When should one stop RTFM and start asking/searching/playing? Is not RTFM and just searching/asking/playing a good practice? What about estimatives? I'd like to hear from your experience :-)

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• popen fails with "sh: <command>: not found"

  - by smallmeans

  I'm developing a server application and I recently encountered this wierd error on a testing server (Debian Squeeze). Every executable I pass to popen fails with a msg: sh: sort: not found // happens to any command This happens regardless whether I point to the full path returned by "type" or keep it short . As mentioned earlier, this happens at only one testing environment, to add confusion, am running the same OS and had no problem whatsoever. Popen is apparently using sh to execute commands, but if I run the same command thru the prompt (bash or sh), everything's fine Thanks in advance (PS: even tried Python os.popen just to nail this head scratcher, and it works!) Edit this is a simple call that fails: $command="tail -10 myfile"; $handle = popen($command.' 2>&1','r'); if($handle){ while (!feof($handle)){ ....//process buffer } } returns: sh: tail: not found

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• How can I create a JTable where the first column is always in the JScrollPane viewport?

  - by voodoogiant

  What's the best way to set up a table in a JScrollPane such that the first column is always on the screen in the same position regardless of horizontal scrolling and overlaps columns that pass underneath? When the scrollbar is at the farthest left, the columns look normal, but as the user scrolls to the right, the secondary columns (2 and on) move underneath the first until the last column appears on the far right of the viewport? I found a sample taken from Eckstein's "Java Swing" book that sort of does this, but it doesn't allow resizing of the first column. I was thinking of some scheme where one JPanel held a horizontal struct and a table holding the secondary columns and another JPanel which floated over them (fixed regardless of scrolling). The struct would be to keep the viewport range constant as the first column floated around. Ideally I could do it with two tables using the same model, but I'm not sure if the whole idea is a naive solution.

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• How-to limit feature functionality

  - by ph0enix

  Are there any standard or "best practice" ways of limiting feature functionality for a particular application? Example: We have a product with a variety of features, and our customers can pick and choose which features they would like to use, and the cost of the product varies based on which features they are actually using. In the past, we have distributed along with our software installer an encrypted license file that contains information about the customer, as well as the collection of features that they have enabled. In code, we read from the license file and enable the functionality according to the license file. This seems to work fine, except there a few disadvantages: Upgrading users with new functionality can be sort of a pain If a particular feature shows up in multiple places throughout the application, a developer might not realize that this feature should be licensed, and forget to check the license file before granting functionality to the user If the license file becomes corrupted, deleted, moved, renamed, etc. the application will not run We're getting ready to roll out a new set of features, and I was just curious what others in the community have done to tackle this problem?

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• word frequency problem

  - by davit-datuashvili

  hi in programming pearls i have meet following problem question is this:print words in decreasing frequency or as i understand probllem is this suppose there is given string array let call it s words i have taken randomly it does not matter String s[]={"cat","cat","dog","fox","cat","fox","dog","cat","fox}; and we see that string cat occurs 4 times fox 3 times and dog 2 times so result will be such cat fox dog i have following code in java mport java.util.*; public class string { public static void main(String[] args){ String s[]={"fox","cat","cat","fox","dog","cat","fox","dog","cat"}; Arrays.sort(s); int counts; int count[]=new int[s.length]; for (int i=0;i } } or i have sorted array and create count array where i write number of each word in array problem is that somehow index of integer array element and string array element is not same how to do such that print words according tu maximum elements of integer array? please help me

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• What are good memory management techniques in Flash/as3

  - by Parris

  Hello! So I am pretty familiar with memory management in Java, C and C++; however, in flash what constructs are there for memory management? I assume flash has a sort of virtual machine like java, and I have been assuming that things get garbage collected when they are set to null. I am not sure if this is actually the case though. Also is there a way to force garbage collection in Flash? Any other tips? Thanks

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• How to get elements from a page using Simple HTML DOM Parser

  - by sm56d

  Hi I am trying to parse a HTML page using the Simple HTML DOM Parser. This HTML page doesn't make use of IDs which makes it harder to refer to elements. On this page I am trying to get the Album name, Song title, download link and the album image. I have done this but I can't even get the Album names! $html = file_get_html('http://music.banadir24.com/singer/aasha_abdoo/247.html'); $article = $html->find('table td[class=title]', 0); foreach($article as $link){ echo $link; } This outputs: 1tdArrayArrayArray Artist Array I need to get this sort of output: Image Path Duniya Jamiila [URL] Macaan Badnoo [URL] Donimaayee [URL] ... Thanks all for any help Please note: This is legal as the songs are not bound by copyright and they are available to download freely, its just I need to download a lot of them and I can't sit there clicking a button all day. Having said that, its taken me an hour to get this far.

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• Is there a library for editing program flow?

  - by Iulian Serbanoiu

  Hello, I was wondering if there is a library for editing program flow. I refer to conditions if, loops (do, while, for) and other elements that can exist inside a program. What I would like to have is some sort of a CAD application (similar to an UML editor) from where I can take some elements and edit their properties, make connections between them. Do you know similar software that does this, or resembles a little what I'm trying to achieve? Thanks, Iulian PS: It is something that should resemble this image. PS2: I want to write code for doing this, I was wondering if such things exist.

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