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  • Java GC: top object classes promoted (by size)?

    - by Java Geek
    Hello! Please let me know what is the best way to determine composition of young generation memory promoted to old generation, after each young GC event? Ideally I would like to know class names which are responsible say, for 80% of heap in each "young gen - old gen" promotion chunk; Example: I have 600M young gen, each tenure promotes 6M; I want to know which objects compose this 6M. Thank you.

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  • Javascript access object variables from functions

    - by Parhs
    function init_exam_chooser(id,mode) { this.id=id; this.table=$("#" + this.id); this.htmlRowOrder="<tr>" + $("#" + this.id + " tbody tr:eq(0)").html() + "</tr>"; this.htmlRowNew="<tr>" + $("#" + this.id + " tbody tr:eq(1)").html() + "</tr>"; $("#" + this.id + " tbody tr").remove(); //Arxikopoiisi var rowNew=$(this.htmlRowNew); rowNew.find("input[type='text']").eq(0).autocomplete({ source: function (req,resp) { $.ajax({ url: "/medilab/prototypes/exams/searchQuick", cache: false, dataType: "json", data:{codeName:req.term}, success: function(data) { resp(data); } }); }, focus: function(event,ui) { return false; }, minLength :2 }); rowNew.find("input[type='text']").eq(1).autocomplete({ source: function (req,resp) { $.ajax({ url: "/medilab/prototypes/exams/searchQuick", cache: false, dataType: "json", data:{name:req.term}, success: function(data) { resp(data); } }); }, focus: function(event,ui) { return false; }, minLength :2 }); rowNew.find("input[type='text']").bind( "autocompleteselect", function(event, ui) { alert(htmlRowOrder); var row=$(htmlRowOrder); $(table).find("tbody tr:last").before(row); alert(ui.item.id); }); rowNew.appendTo($(this.table).find("tbody")); //this.htmlRowNew } The problem is at ,how i can access htmlRowOrder? I tried this.htmlRowOrder and didnt work.... Any ideas?? rowNew.find("input[type='text']").bind( "autocompleteselect", function(event, ui) { alert(htmlRowOrder); var row=$(htmlRowOrder); $(table).find("tbody tr:last").before(row); alert(ui.item.id); });

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  • Object reference case study

    - by Skogen
    When person 1 become partner with person 3, person 2 should no longer have person 1 as partner. How should I solve this? public class Person { private String name; private Person partner; public Person(String name){ this.name = name; } public void setPartner(Person partner){ this.partner = partner; partner.partner = this; } public static void main(String[] args) { Person one = new Person("1"); Person two = new Person("2"); Person three = new Person("3"); Person four = new Person("4"); one.setPartner(two); three.setPartner(four); one.setPartner(three); //Person two is still partner with person 1 }

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  • Store latitudes and longitudes in database for proximity/radius search using Google Maps API, .NET a

    - by poojad
    What is the approach for storing the latitudes and longitudes for multiple addresses as a one time set up. I need to find the nearby stores using Google Maps and I have to get the latitudes and longitudes of all the available stores. As the data is huge and may increase or change in future, can anyone suggest an approach taking performance and maintenance into consideration. Thank you.

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  • Android sending SOAP object over Https via ksoap2 2.5.8

    - by Jack-V
    My first time posting a question here so please do not mind my mistakes here. I'm currently making an android application fetching and sending information from a .asmx web service. Everything goes well with the ksoap2 library and am using HttpTransportSE to call the web service. So now what I'm trying to do is to use the HttpsTransportSE to call the web service over Https. I got java.security.cert.certpathvalidatorexception trustanchor for certpath not found exception. I have the server certificate in .pfx , .jks and .bks format. My questions is what do i do with it to make my HttpsTransportSE call to be success? I've read around with articles using custom SSLSocketFactory but am still not sure how to implement it in my application. Thanks in advance for any suggestion/advices

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  • can't save form content to database, help plsss!!

    - by dana
    i'm trying to save 100 caracters form user in a 'microblog' minimal application. my code seems to not have any mystakes, but doesn't work. the mistake is in views.py, i can't save the foreign key to user table models.py looks like this: class NewManager(models.Manager): def create_post(self, post, username): new = self.model(post=post, created_by=username) new.save() return new class New(models.Model): post = models.CharField(max_length=120) date = models.DateTimeField(auto_now_add=True) created_by = models.ForeignKey(User, blank=True) objects = NewManager() class NewForm(ModelForm): class Meta: model = New fields = ['post'] # widgets = {'post': Textarea(attrs={'cols': 80, 'rows': 20}) def save_new(request): if request.method == 'POST': created_by = User.objects.get(created_by = user) date = request.POST.get('date', '') post = request.POST.get('post', '') new_obj = New(post=post, date=date, created_by=created_by) new_obj.save() return HttpResponseRedirect('/') else: form = NewForm() return render_to_response('news/new_form.html', {'form': form},context_instance=RequestContext(request)) i didn't mention imports here - they're done right, anyway. my mistake is in views.py, when i try to save it says: local variable 'created_by' referenced before assignment it i put created_py as a parameter, the save needs more parameters... it is really weird help please!!

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  • json object to checked checkboxes

    - by webmaster_sean
    I have this: <div id="taglist"> <input type="checkbox" name="chkB1" id="chkB1" value="Mon" />&nbsp;Monday&nbsp;&nbsp; <input type="checkbox" name="chkB2" id="chkB2" value="Tue" />&nbsp;Tuesday&nbsp;&nbsp; <input type="checkbox" name="chkB3" id="chkB3" value="Wed" />&nbsp;Wednesday&nbsp;&nbsp; <input type="checkbox" name="chkB4" id="chkB4" value="Thu" />&nbsp;Thursday&nbsp;&nbsp;<br /> <input type="checkbox" name="chkB5" id="chkB5" value="Fri" />&nbsp;Friday&nbsp;&nbsp; <input type="checkbox" name="chkB6" id="chkB6" value="Sat" />&nbsp;Saturday&nbsp;&nbsp; <input type="checkbox" name="chkB7" id="chkB7" value="Sun" />&nbsp;Sunday&nbsp;&nbsp; <input type="hidden" name="source_frequency" id="source_frequency" value="" /> </div> And this: var days = ["Mon","Tue","Wed","Sun"]; I want the values from days make the corresponding check boxes checked. How would one do such a thing :-)

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  • SQL query problem

    - by Brisonela
    Hi, I'm new to StackOverflow, and new to SQL Server, I'd like you to help me with some troublesome query. This is my database structure(It's half spanish, hope doesn't matter) Database My problem is that I don't now how to make a query that states which team is local and which is visitor(using table TMatch, knowing that the stadium belongs to only one team) This is as far as I can get Select P.NroMatch, (select * from fnTeam (P.TeamA)) as TeamA,(select * from fnTeam (P.TeamB)) as TeamB, (select * from fnEstadium (P.CodEstadium)) as Estadium, (cast(P.GolesTeamA as varchar)) + '-' + (cast(P.GolesTeamA as varchar)) as Score, P.Fecha from TMatch P Using this functions: If object_id ('fnTeam','fn')is not null drop function fnTeam go create function fnTeam(@CodTeam varchar(5)) returns table return(Select Name from TTeam where CodTeam = @CodTeam) go select * from fnTeam ('Eq001') go ----**** If object_id ('fnEstadium','fn')is not null drop function fnEstadium go create function fnEstadium(@CodEstadium varchar(5)) returns table return(Select Name from TEstadium where CodEstadium = @CodEstadium) go I hope I'd explained myself well, and I thank you help in advance

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  • returning a pointed to an object within a std::vector

    - by memC
    I have a very basic question on returning a reference to an element of a vector . There is a vector vec that stores instances of class Foo. I want to access an element from this vector . ( don't want to use the vector index) . How should I code the method getFoo here? #include<vector> #include<stdio.h> #include<iostream> #include<math.h> using namespace std; class Foo { public: Foo(){}; ~Foo(){}; }; class B { public: vector<Foo> vec; Foo* getFoo(); B(){}; ~B(){}; }; Foo* B::getFoo(){ int i; vec.push_back(Foo()); i = vec.size() - 1; // how to return a pointer to vec[i] ?? return vec.at(i); }; int main(){ B b; b = B(); int i = 0; for (i = 0; i < 5; i ++){ b.getFoo(); } return 0; }

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  • Fatal error: Call to a member function escape() on a non-object in .....on line 10

    - by danyo
    i am making a simple javascript login form for wordpress. i have the form submitting to the following bit of php to handle the login: <?php get_header(); global $user_ID; if (!$user_ID) { if($_POST){ //We shall SQL escape all inputs $username = $wpdb->escape($_REQUEST['username']); $password = $wpdb->escape($_REQUEST['password']); $remember = $wpdb->escape($_REQUEST['rememberme']); if($remember) $remember = "true"; else $remember = "false"; $login_data = array(); $login_data['user_login'] = $username; $login_data['user_password'] = $password; $login_data['remember'] = $remember; $user_verify = wp_signon( $login_data, false ); //wp_signon is a wordpress function which authenticates a user. It accepts user info parameters as an array. if ( is_wp_error($user_verify) ) { echo "<span class='error'>Invalid username or password. Please try again!</span>"; exit(); } else { echo "<script type='text/javascript'>window.location='". get_bloginfo('url') ."'</script>"; exit(); } } else { //get_header(); ?> any ideas on why i am getting the error? Cheers, Dan

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  • [Using $this when not in object context in] php error

    - by JasonS
    I have solved this problem, I just need to know what to do. I get the above error because I just realised that the class is being run as class::function($values) instead of class-function($values). Does anyone know how to convert this function to instantiate the class then run the function with values? private function _load($values=null) { define('LOADED_CONTROLLER', $this->controller); define('LOADED_FUNCTION', $this->function); $function = $this->function; $controller = new $this->controller; ($values == null) ? $controller->$function() : call_user_func_array(array($this->controller, $function), $values); }

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  • DB2 increase bufferpool size and compressed tables not equal better performance. Why?

    - by Mestika
    Hi, I’m working on tuning and increasing the performance of my IBM DB2 version 9.7 database. I’ve been searching around the net for the last couple of days and learned that if I created my tables in COMPRESS mode and created one more bufferpool and set both of them to access 1024mb, then the performance in my queries should increase because of the less I/Os to the disks. However, when I run my time analysis, the performance Decrease. I added the new additions to my regular database with the indexes I’ve used all the time. Each time I search google I come up with the statement that: Increased bufferpool size and several bufferpools AND a table compression SHOULD prove to get better performance. I’m very puzzled about the total unexpected result. Are there some tuning mechanisms I’ve forgot or does anyone have a explanation for this odd behavior? Sincerely Mestika

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  • Instantiating Java object with a passed in method

    - by superluminary
    It's been a few years since I've been heavily into Java. Coming back to it I'm seeing this pattern all over the place: ratingBar.setOnRatingBarChangeListener(new OnRatingBarChangeListener() { public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) { // do work } }); This looks more like Functional programming to me. It's a nice pattern but how is it possible to pass a method like this? In the old days a class was a class, and once compiled there was little you could do to it. My questions are: Can anyone let me know what this pattern is called? How can I write a class that can be instantiated in this way. Are there any other useful examples of functional patterns that have made their way into Java? What do I need to Google to read more about this? Thanks.

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  • c# error when using the Database.cs files

    - by Kumu
    Inconsistent accessibility: parameter type 'FoolballLeague.FootballLeagueDatabase' is less accessible than method 'FoolballLeague.MainMenu.MainMenu(FoolballLeague.FootballLeagueDatabase)' C:\Users\achini\Desktop\FootballLeague\FootballLeague\MainMenu.cs I have got this error when I insert this part to the code //public MainMenu(FootballLeagueDatabase footballLeagueDatabaseIn) //{ //InitializeComponent(); //footballLeagueDatabase = footballLeagueDatabaseIn; //} The whole code of the first part is as following, But I dont know what do I need to do to sort out this error. public partial class MainMenu : Form { FootballLeagueDatabase footballLeagueDatabase; Game game; Login login; public MainMenu() { InitializeComponent(); changePanel(1); } //public MainMenu(FootballLeagueDatabase footballLeagueDatabaseIn) //{ //InitializeComponent(); //footballLeagueDatabase = footballLeagueDatabaseIn; //} If you have any idea please let me know, I need this part to the system.

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