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• Problem with interaction servlet-jsp

  - by zp26

  Hi, I have a implementation prolbem. I have create a jsp and a servlet file. I have a remoteInterface of session bean. I wanna use remoteInterface in servlet and after write the data on the jsp. The client must see only the result page. For Example: A method of session bean return a Collection. I use this collection in the servlet and after this stamp all the element in the jsp. Can you help me with a code example. Thanks

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• Simple Hash that is always equal between C# and Java

  - by GaiusSensei

  I have a C# WebService and a (Java) Android Application. Is there a SIMPLE hash function that produces the same result between these two languages? The simplest C# hash is a String.GetHashCode(), but I can't replicate it in Java. The simplest Java hash is not simple at all. And I don't know if I can replicate it exactly in C#. In case it's relevant, I'm hashing passwords before sending it across the internet. I'm currently using Encode64, but that's obviously not secure since we can reverse it.

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• MYSQL: COUNT with GROUP BY, LEFT JOIN and WHERE clause doesn't return zero values

  - by Paul Norman

  Hi guys, thanks in advance for any help on this topic! I'm sure this has a very simply answer, but I can't seem to find it (not sure what to search on!). A standard count / group by query may look like this: SELECT COUNT(`t2`.`name`) FROM `table_1` `t1` LEFT JOIN `table_2` `t2` ON `t1`.`key_id` = `t2`.`key_id` GROUP BY `t1`.`any_col` and this works as expected, returning 0 if no rows are found. So does: SELECT COUNT(`t2`.`name`) FROM `table_1` `t1` LEFT JOIN `table_2` `t2` ON `t1`.`key_id` = `t2`.`key_id` WHERE `t1`.`another_column` = 123 However: SELECT COUNT(`t2`.`name`) FROM `table_1` `t1` LEFT JOIN `table_2` `t2` ON `t1`.`key_id` = `t2`.`key_id` WHERE `t1`.`another_column` = 123 GROUP BY `t1`.`any_col` only works if there is at least one row in table_1 and fails miserably returning an empty result set if there are zero rows. I would really like this to return 0! Anyone enlighten me on this? Beer can be provided in exchange if you are in London ;-)

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• How to log the raw SQL from Oracle occi C++ api?

  - by savanna

  One of our customers is complaining our application is not working. Their reasoning is that our sql function call to their Oracle database is not getting the "expected" result. Sometime, it should failed but our application get success from their database. It's really frustrating because it's their database and we cannot do any test on it. We are using the C++ Oracle OCCI API. Is there anyway we can log the raw sql from our end? That will be very helpful and we can ship the script to them and let them debug in their system to figure out the problem. Thanks in advance.

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• How to map an property of ClassA to one of SuperclassA?

  - by mystify

  I have a class named SuperclassA, and an class named ClassA. ClassA inherits from SuperclassA. SuperclassA has got an property called something, so a very generic not-much-saying name. In ClassA, I want to have an property which maps to that something of SuperclassA. How could I do that? I want to make absolutely sure that any access to myBetterProperty results in accessing what's behind something. Assigning an value to myBetterProperty should result in assigning one to something, and vice versa. How to? Pointers set up in init? How would that look like? *self.myBetterProperty = &something; ? I'm not sure about that...

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• Windows Service is not Working.

  - by prateeksaluja20

  I had made a windows service in visual studio 2008 in C#.inside the service i had written only single line code try { System.Diagnostics.Process.Start(@"E:\Users\Sk\Desktop\category.txt"); } catch { } then i add the project insatller & change the serviceProcessInstaller1 Account proerty as local system Also change the serviceInstaller1 start type proerty as Automatic. then i build the project.it was succesfull. after that i add another project that was setup project.i had added pprimary project output & i had added the custom action as "Primary output from DemoWindowsService (Active)".then buil the setup.setup was build sucessfully.then i install the setup & then went to services start the service.service stated properly butit was not performing the task. i had checked the path is correct & also i tried to do System.Diagnostics.Process.Start(@"E:\Windows\system32\notepad.exe") but still result is same.i tried alot but not getting the ans soleasse help me to solve this problem.

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• replace \n and \r\n with <br /> in java

  - by Bala R

  This has been asked several times for several languages but I can't get it to work. I have a string like this String str = "This is a string.\nThis is a long string."; And I'm trying to replace the \n with <br /> using str = str.replaceAll("(\r\n|\n)", "<br />"); but the \n is not getting replaced. I tried to use this RegEx Tool to verify and I see the same result. The input string does not have a match for "(\r\n|\n)". What am i doing wrong ?

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• What do C# Table Adapters actually return?

  - by Raven Dreamer

  I'm working on an application that manipulates SQL tables in a windows form application. Up until now, I've only been using the pre-generated Fill queries, and self-made update and delete queries (which return nothing). I am interested in storing the value of a single value from a single column (an 'nchar(15)' name), and though I have easily written the SQL code to return that value to the application, I have no idea what it will be returned as. SELECT [Contact First Name] FROM ContactSkillSet WHERE [Contact ID] = @CurrentID Can the result be stored directly as a string? Do I need to cast it? Invoke a toString method?

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• how do you group select_tag and text_field_tag?

  - by Eytan

  I'm trying to build a form where a user can select an existing category, or define their own. My form looks something like this... <%= f.select :category, category_options, prompt: "Select"> <%= f.text_field :category %> However, this UI is confusing. The user can select something in the select box, and type in a custom category. In this case, the final result is not obvious. Do you guys have any recommendations on how to handle this situation?

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• Send value to servlet with javascript

  - by kawtousse

  hi everyone, In my JavaScript function I do like this in order to redirect parameters to servlet: var ids1=document.getElementById("projet").value; document.location.href("http://localhost:8080/Opc_Web_App/ServletAffectation?ids1="+ids1); and in the servlet I do the following to get Value: String idprojet= request.getParameter("ids1"); System.out.println("le projet selectionné est :" +idprojet); the problem that i didn't have the result of System.out.print in my screen; so in other terms the servlet didn't get the parameter. I can not see the problem until now. Please help. Thank you.

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• how to get values sent by location.replace(URL)

  - by kawtousse

  hi everyone, In my javascript function I do livke this in order to redirect parameters to servlet: var ids1=document.getElementById("projet").value; document.location.href("http://localhost:8080/Opc_Web_App/ServletAffectation?ids1="+ids1); and in the servlet I do the following to get Value: String idprojet= request.getParameter("projet"); System.out.println("le projet selectionné est :" +idprojet); the problem that i didnt have the result of System.out.print in my screen; so in other terms the servlet didn't get the parameter. I can not see the problemn untill now. Please help. Thank you.

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• implementing runat in HtmlTextWriterAttribute

  - by user525116

  Hi dear friends, I have a custom asp.net control. public class Window : WebControl { protected override void RenderContents(HtmlTextWriter wr) { wr.AddAttribute("runat", "server",true); wr.AddAttribute("id", this.UniqueID, false); wr.RenderBeginTag(HtmlTextWriterTag.Div); wr.RenderEndTag(); wr.WriteLine(); base.RenderContents(wr); } } And this is my result after compile and use the control: <cc1:Window ID="Window1" runat="server" /> Use standard definition DIV with standard format: <div runat="server" id="aaaa"></div> After compile my web page to use this web custom control, this is render browser source of my web page: <span id="Window1"><div runat="server" id="Window1"></div></span> <div id="aaaa"></div>

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• Problem with PHP array index.

  - by user632027

  Following code: <?php $test_array = array(); $test_array['string_index'] = "data in string index"; $test_array[] = "data in index 0"; $test_array[] = "data in index 1"; $test_array[] = "data in index 2"; foreach($test_array as $key => $val) { if($key != 'string_index') { echo $val."<br>"; } } ?> gives result: data in index 1 data in index 2 Question is - where is "data in index 0"??? How to get elements from numeric indices 0-n? Also if I change 'string_index' to something else which doesn't exist, it echoes everything except [0]. Plz, explain me this. Thnx in advance

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• checking the return code using python (MAC)

  - by cyberbemon

  I have written a script that checks if an SVN Repo is up and running, the result is based on the return value. import subprocess url = " validurl" def check_svn_status(): subprocess.call(['svn info'+url],shell=True) def get_status(): subprocess.call('echo $?',shell=True) def main(): check_svn_status() get_status() if __name__ == '__main__': main() The problem I'm facing is that if I change the url to something that does't exist I still get the return value as 0, but if I were to run this outside the script, i.e go to the terminal type svn info wrong url and then do a echo $? I get a return value of 1. But I can't re-create this in the python. Any guidelines ?

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• Django query - join on the same table

  - by dana

  i have a mini blog app, and a 'timeline' . there i want to be displayed all the posts from all the friends of a user, plus the posts of that user himself. For that, i have to make some kind of a 'join' between the results of two queries (queries on the same table) , so that the final result will be the combination of the user - posesor of the account, and all his friends. My query looks like this: blog = New.objects.filter(created_by = following,created_by = request.user) By that ',' i wanted to make a 'join' -i found something like this on a doc- but this method is not correct- i'm getting an error. How else could be done this 'join' ? Thanks!

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• select field information with min time value

  - by Scarface

  Hey guys quick question, I thought I was doing the right thing but I keep getting the wrong result. I am trying to simply find the id of the entry with the min time, but I am not getting that entry. $qryuserscount1="SELECT id,min(entry_time) FROM scrusersonline WHERE topic_id='$topic_id'"; $userscount1=mysql_query($qryuserscount1); while ($row2 = mysql_fetch_assoc($userscount1)) { echo $onlineuser= $row2['id']; } That is my query, and it does not work. This however does work which does not make sense to me SELECT id FROM scrusersonline WHERE topic_id='$topic_id' ORDER by entry_time LIMIT 1, can anyone quickly point out what I am doing wrong?

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• How to set focus to a control inside frame

  - by Geetha

  Hi All, i am using two frames in a page. Mainframe have a page with text box to get input and gives the result url. Needs: I want to show this page in the topframe. I want to set focus to the text box control in the mainframe always. using the following code but giving null error. parent.frames['mainFrame'].document.getElementById('form1:txtbox').focus(); <frameset rows="550,0" cols="1008" frameborder="NO" border="0" framespacing="0"> <frame src="" id="topFrame" target="topFrame" runat="server" scrolling="no"></frame> <frame src="Search.aspx" runat="server" id="mainFrame"></frame> </frameset>

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• jQuery: Load body of page into variable

  - by Nathan G.

  I'm using jQuery to load the result of a PHP script into a variable. The script is passed something that the user typed with a GET request. I want to take just what the script spit out into its <body> tag. Here's what I've tried: JS: function loader() { var typed = $('#i').val(); //get what user typed in $.get("script.php", {i: typed}, function(loaded) {dataloaded = loaded;}); alert($(dataloaded).find('body')) } But it just displays [Objec object]. How can I get a useful value that is just the contents of the body of a loaded page? I know the PHP works, I just need the JS. The script echos something like 1!!2 (two numbers separated by two exclamation points). Thanks!

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• Getting Reference to Calling Activity from AsyncTask (NOT as an inner class)

  - by stormin986

  Is it at all possible, from within an AsyncTask that is NOT an inner class of the calling Activity class, to get a reference to the instance of Activity that initiated execution of the AsyncTask? I am aware of this thread, however it doesn't exactly address how to reference the calling Activity. Some suggest passing a reference to the Activity as a parameter to the AsyncTask constructor, however, it's reported that doing so will always result in a NullPointerException. So, I'm at a loss. My AsyncTask provides robust functionality, and I don't want to have to duplicate it as an inner class in every Activity that wants to use it. There must be an elegant solution.

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• In Django, using __init__() method of non-abstract parent model to record class name of child model

  - by k-g-f

  In my Django project, I have a non-abstract parent model defined as follows: class Parent(models.Model): classType = models.CharField(editable=False,max_length=50) and, say, two children models defined as follows: class ChildA(Parent): parent = models.OneToOneField(Parent,parent_link=True) class ChildB(Parent): parent = models.OneToOneField(Parent,parent_link=True) Each time I create an instance of ChildA or of ChildB, I'd like the classType attribute to be set to the strings "ChildA" or "ChildB" respectively. What I have done is added an _ _ init_ _() method to Parent as follows: class Parent(models.Model): classType = models.CharField(editable=False,max_length=50) def __init__(self,*args,**kwargs): super(Parent,self).__init__(*args,**kwargs) self.classType = self.__class__.__name__ Is there a better way to implement and achieve my desired result? One downside of this implementation is that when I have an instance of the Parent, say "parent", and I want to get the type of the child object linked with "parent", calling "parent.classType" gives me "Parent". In order to get the appropriate "ChildA" or "ChildB" value, I need to write a "_getClassType()" method to wrap a custom sql query.

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• foreach invalid argument supplied and mysql fetch array issue

  - by La Myse

  i have this code which i use to print some fields from the database. My problem is that i get this error about foreach invalid argument supplied and a mysql fetch array problem. The code is this: foreach( $checked1 as $key => $value){ echo "<th> $value </th>"; } echo "</tr></thead>"; while($row = mysql_fetch_array($result)){ Where $checked1 is an array $checked1 = $_POST['checkbox']; What's the problem here? Thanks..

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• 2 Questions 1.How to find differences in lists in prolog and 2. Determine if the lists are the same

  - by Alexander

  1.If i have two lists say A and B made upp of different letters. [b,a,c] in list A and [b,d,c,e] in list B how can i get prolog to give me C,which is a list of elements that A has which are not included in list B Ex. So if i type difference([b,a,c],[b,d,c,e],C). I want the answer to read: C=[a] If i have two lists where list A is made up off [a,b,c] and list B is [c,a,b] i want the result to be Yes if i type: same([a,b,c],[c,a,b]). since they contain the same elements the fact that they are in a different order does not matter. Also it should only answer yes if all of the elements are the same not if 3/4 are right.

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• Mongodb, simple IN problem

  - by afvasd

  Hi everyone I am new to mongo, this is my db design: product := { name: str group: ref, comments: [ ref, ref, ref, ref ] } comments := { ... a bunch of comments stuff } tag := { _id: int, #Need this for online requests tag: str, products: [ {product: ref, score: float}, ... ], comments: [ {comment: ref, score: float}, ...], } So my usage pattern is: GIVEN a product, find comments that have certain tag and sort them accordingly. My current approach involves: Look for that tag object that has tag=myTag pull all the comments out, sorted look for that product where product.name=myProduct pull all the comments out (which are dbrefs by the way) loop through the result of 2, and checking if they are in 4, (this I can do a limit 10) etc. It's pretty inefficient. Any better methods?

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• How can I get running totals of integer values from a SortedDictionary?

  - by user578083

  SortedDictionary<int, string> typeDictionary = new SortedDictionary<int, string>(); SortedDictionary<int, int> lengthDictionary = new SortedDictionary<int, int>(); lengthDictionary has values in key value pair as follows: <1,20> <2,8> <3,10> <4,5> i want LINQ query which will return me new list like as follows <1,20> <2,20+8=28> // 20 from key 1 <3,28+10=38> // 28 from key 2 <4,38+5=43> // 38 from key 3 Result should like this: <1,20> <2,28> <3,38> <4,43>

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• fullscreen map not displayed correctly

  - by user1747168

  I want the map to be opened on full-screen. I've tried this: <div class="b-firm-map-content" id="map"></div> <a href="#" onclick="test2();return false;" >full screen</a> function test2(){ var width = $(window).width()-3; var height = $(window).height(); $('#map').css({ 'width': width, 'height': height - 40 , 'position': 'absolute ', 'z-index' : '900' }); } but it result in: http://pixs.ru/showimage/Snimokpng_5811285_6065704.png http://pixs.ru/showimage/Snimok1png_4265065_6065745.png My map not completely displayed.

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