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• debug=true in .svc file?

  - by JohnW

  Our WCF svc files contain the following: <%@ ServiceHost Service="Foo" Factory="Bar" Language="C#" Debug="true" %> What does debug=true mean in this case? web.config has debug=false, but I don't know what this one means and can't find a reference on MSDN.

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• JPA EclipseLink Auditing for Oracle issue with SessionCustomizer...

  - by enrique

  I was trying to use the SessionCustomizer for auditing with v$session.program for oracle and it works with JDBC but i need it working with JPA, so i read a bit more the documentation for SESSION_CUSTOMIZER in this site: http://wiki.eclipse.org/Using_EclipseLink_JPA_Extensions_(ELUG)#EclipseLink_JPA_Persistence_Unit_Properties_for_Customization_and_Validation but had not lucky in making it work in passing the program name parameter to oracle with the v$session.program... i was using the SessionCustomizer and it is an interface so my code is as follows: package com.util; import org.eclipse.persistence.config.SessionCustomizer; import org.eclipse.persistence.sessions.Session; /** * * @author xkalibur */ public class ProgramCustomizer implements SessionCustomizer{ public void customize(Session s) throws Exception { s.getDatasourceLogin().setProperty("v$session.program","Customers"); } } then in CustomerFacade : ProgramCustomizer pc=new ProgramCustomizer(); public void edit(Customer customer) { emProperties.put(PersistenceUnitProperties.SESSION_CUSTOMIZER,pc); em=factory.createEntityManager(emProperties); em.merge(customer); } and returns the following error: javax.ejb.EJBException Caused by: java.lang.NullPointerException at com.facades.CustomerFacade.edit(CustomerFacade.java:48) please some help...

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• Using xsl param (if exists) to replcae attribute value

  - by Assaf

  I would like an xsl that replaces the value attribute of the data elements only if the relevant param names are passed. Input <applicationVariables applicationServer="tomcat"> <data name="HOST" value="localhost"/> <data name="PORT" value="8080"/> <data name="SIZE" value="1000"/> </applicationVariables> So for example if passing in a param HOST1=myHost and PORT=9080 the output should be: <applicationVariables applicationServer="tomcat"> <data name="HOST" value="myHost"/> <data name="PORT" value="9080"/> <data name="SIZE" value="1000"/> </applicationVariables> Note that HOST and PORT where replaced but SIZE was not replaced because there was no parameter with name SIZE Since the list of data elements is long (and may change), i would like a generic way of doing this with xsl

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• c++ meaning of the use of const in the signature

  - by jbu

  Please help me understand the following signature: err_type funcName(const Type& buffer) const; so for the first const, does that mean the contents of Type cannot change or that the reference cannot change? secondly, what does the second const mean? I don't really even have a hint. Thanks in advance, jbu

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• EditText, inputType values (xml)

  - by jgauffin

  Where can I find the values that inputType can have? I'm aware of http://developer.android.com/reference/android/text/InputType.html, but how should the values look like in layout xml files?

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• Comparing XmlDocument for equality (content wise)

  - by Blankman

  If I want to compare the contents of a XMlDocument, is it just like this? XmlDocument doc1 = GetDoc1(); XmlDocument doc2 = GetDoc2(); if(doc1 == doc2) { } I am not checking if they are both the same object reference, but if the CONTENTS of the xml are the same.

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• What is the correct way to use variables in JQuery?

  - by Jared Christensen

  I want to reference an element once and then reuse it threw out my code but I'm not sure the correct way. Below is what I tried but it only works in some places. $(document).ready(function() { var image = $("#content img"); image.wrap("<span />"); // Works! image.hover(function(){}, function(){}); // Does not work? });

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• Dynamic populate ComboBox (Flex)

  - by Vinzcent

  Hey, I want to populate a ComboBox after a clicked a button. This is my code: var dpNames:ArrayCollection = new ArrayCollection(); for each(var ca:Categorie in arrCategories) { dpNames.addItem ({label: ca.name, data: ca.value}); } cbWijzigCategorie.dataProvider = dpNames; But when he executes the last line, I alwas get the following error: TypeError: Error #1009: Cannot access a property or method of a null object reference. I have no idea why. Thanks a lot, Vincent

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• Adding series programatically to a Dundas TreeMap

  - by starskythehutch

  I'm trying to programatically add a series to a Dundas TreeMap but I'm getting a Object reference not set to an instance of an object. error. This error looks to be a bug in Dundas, but I was wondering if anyone has tried/managed to do this? If I add the series in declaratively then at all works fine.

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• silverlight and windows workflow foundation

  - by wissem

  Hi, can i comunicate a silverlight application with a windows workflow foundation app,if yes how can i do that? , i try to add a reference from my silverlight app to a windows workflow app and it doesnt work. Thanks

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• Why is the content of slice not changed in GO?

  - by Kid

  I thought that in GO language, slices are passed by reference. But why the following code doesn't change the content of slice c? Am I missing something? Thank you. package main import ( "fmt" ) func call(c []int) { c = append(c, 1) fmt.Println(c) } func main() { c := make([]int, 1, 5) fmt.Println(c) call(c) fmt.Println(c) } The result printed is: [0] [0 1] [0] while I was expecting [0] [0 1] [0 1]

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• Function calls in virtual machine killing performance

  - by GenTiradentes

  I wrote a virtual machine in C, which has a call table populated by pointers to functions that provide the functionality of the VM's opcodes. When the virtual machine is run, it first interprets a program, creating an array of indexes corresponding to the appropriate function in the call table for the opcode provided. It then loops through the array, calling each function until it reaches the end. Each instruction is extremely small, typically one line. Perfect for inlining. The problem is that the compiler doesn't know when any of the virtual machine's instructions are going to be called, as it's decided at runtime, so it can't inline them. The overhead of function calls and argument passing is killing the performance of my VM. Any ideas on how to get around this?

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• jquery updating a div in ajax diesnt work properly, when using a variable

  - by maschek

  hi, i got the following code var zieldiv = $(this).attr(\'id\'); $.ajax({ url: \'index.php?params\', type: \'POST\', data: { color:thenewcolor, zieldiv:zieldiv }, timeout: 50000, beforeSend: function() { $("#" + zieldiv).css({background: "#" + thenewcolor} ); } }); I use this for dragging a small div into a bigger div. the variable at the beginnning would give out the string "test1". So in the ajax.thing the css of a div which matches the var zieldiv should be updatet. Problem is, if i would place a string instead a var into the $(...) like $("#test1") it acts like its supposed to, the #test1 gets updated. but if i use the var $("#" + zieldiv) the parent div, which is surrounding the #test1-div gets updated. but i know for sure the var zieldiv contains the string "test1", because when passing it to php it contains "test1". so i think this is a little strange. do you have any ideas? thanx, maschek

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• Different ways to specify libraries to gcc/g++

  - by abigagli

  I'd be curious to understand if there's any substantial difference in specifying libraries (both shared and static) to gcc/g++ in the two following ways (CC can be g++ or gcc) CC -o output_executable /path/to/my/libstatic.a /path/to/my/libshared.so source1.cpp source2.cpp ... sourceN.cpp vs CC -o output_executable -L/path/to/my/libs -lstatic -lshared source1.cpp source2.cpp ... sourceN.cpp I can only see a major difference being that passing directly the fully-specified library name would make for a greater control in choosing static or dynamic versions, but I suspect there's something else going on that can have side effects on how the executable is built or will behave at runtime, am I right? Andrea.

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• Pass codeigniter translation array to jQuery Function

  - by grolle

  Hi, I’ve a problem by passing an array to a jQuery function. Some code: // in the language file $lang['daynames'] = array('So','Mo','Di','Mi','Do','Fr','Sa'); //In the view var config = { basePath : '' }; // THIS WORKS GREAT!!! var days = new array('lang-line('daynames')); ?'); //in the js-File $(function() { $("#datepicker").datepicker({ dateFormat : 'dd.mm.yy', showWeek : true, firstDay : 1, weekHeader : 'KW', dayNamesMin : days, monthNames : ['Januar','Februar','März','April', 'Mai','Juni','Juli','August','September', 'Oktober','November','Dezember'], onSelect : function(dateText,inst){ } }); }); If I do lang-line(‘daynames’)); ? in the view everything looks fine, so what is wrong here? Thanks and best regards ...

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• changing value of a primary key in a table and FK in referenced tables

  - by sergiogx

  I wish to change the primary key of a table, and also change the foreign key of the tables that reference it. for example table employee has PK idEmployee = 1 table payroll has FK idEmployee = 1 I want to update employee to idEmployee = 2 and let the table payroll change FK idEmployee automatically. is this posible in mysql? thanks.

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• loading an xml in web apps directory from a library dll

  - by Blankman

  my web application has an xml file here: /files/xml/test.xml I need to load a XDocument from within a class library project, how will I reference the xml? I don't want to pass any path parameters to this method. I want to assume the location is fixed at /files/xml/test.xml. How can I load a XDocument know this? I don't seem to have access to server.mappath either.

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• How shared hostings, domain names and DNS work together?

  - by vtortola

  Hi, I 've this little doubt but I couldn't find information about it, probably because I'm not searching the correct thing. When a browser ask for "www.mydomain.com", the DNS server returns an IP Address, then the browser go there... but what does happen then? I mean, that IP address could be a shared hosting that contains hundreds of web pages and domains, so how does it knows where it have to go? Is something that the web server does? is it something that I could implement in a web application? I mean, for example I have a web application that contains accounts, and each account has a default web page. You could access that page passing the account namne, for example "www.mydomain.com/myaccount", but now I want to register "www.myaccount.com" and then it will get the "www.mydomain.com/myaccount" content. Is it possible? Kind regards.

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• HTML5 offline cache google font api

  - by Bala Clark

  I'm trying to create an offline HTML5 test application, and am playing with the new google fonts api at the same time. Does anyone have any ideas how to cache the remote fonts? Simply putting the api call in the cache manifest doesn't work, I assume this is because the api actually loads other files (ttf, eot, etc). Any ideas if using the font api offline would be possible? For reference this is the call I am making: http://fonts.googleapis.com/css?family=IM+Fell+English|Molengo|Reenie+Beanie

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• Oracle for the SQL Server DBA guides?

  - by MattK

  I am looking for a reference for a SQL Server DBA who has to come up to speed on basic Oracle 11 DBA tasks: backup, recovery, user administration, etc. There seems to be some material on the web for the reverse: Oracle - SQL Server, but the only potentially useful resource I have found in a few searches is yet to be published: http://www.amazon.com/Oracle-Database-Administration-Microsoft-Osborne/dp/0071744312 Can anyone provide references to something currently available?

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• Avaudioplayer problem regarding song overlaping

  - by Ajeet Kumar Yadav

  The problem is in being able to catch the instance of the player to control it i.e. Stop it, Play it etc. The code by default creates multiple instances of the same player and overlaps the songs. I am being unable to reference the player specifically. Do you have an idea as to how we can do so? Thanks, Arun

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• In node.js slow readable stream attached to a faster pushing message queue eats up memory

  - by Vishal

  In my node.js program I have a response stream attached to a message queue (zeromq) delivering data at a very high rate. Due to slow network connection the response stream and its underlying implementation is unable to consume data at that pace thus occupying a lot of memory. Do you have any suggestion to solve this problem. For reference please see the code snippet below: zmq.on("message", function(data) { res.write(data); // End response on some event });

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• as3 air for android download folder and contents

  - by Papa De Beau

  Is it possible to download a folder and its contents using air for android? I would like to also use the same code on iPhone. I need it to be stored in the application storage so we can reference the content once downloaded. I know it's possible to download content as referenced in this question: Download Content using Air For Android but can a person download the entire folder and again store it in the application directory? Thanks @lukevain? :)

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• Compilation error with C++ templates. Is there any easy way to understand them?

  - by Naveen

  While working with the C++ templates (most of the time using STL or boost) I run into the compilation errors that are miles long. I find it hard to figure out what compiler is trying to tell me. Is there any quick reference guide or a tool which can convert this error into something more understandable to humans?

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• SwingWorker exceptions lost even when using wrapper classes

  - by Ti Strga

  I've been struggling with the usability problem of SwingWorker eating any exceptions thrown in the background task, for example, described on this SO thread. That thread gives a nice description of the problem, but doesn't discuss recovering the original exception. The applet I've been handed needs to propagate the exception upwards. But I haven't been able to even catch it. I'm using the SimpleSwingWorker wrapper class from this blog entry specifically to try and address this issue. It's a fairly small class but I'll repost it at the end here just for reference. The calling code looks broadly like try { // lots of code here to prepare data, finishing with SpecialDataHelper helper = new SpecialDataHelper(...stuff...); helper.execute(); } catch (Throwable e) { // used "Throwable" here in desperation to try and get // anything at all to match, including unchecked exceptions // // no luck, this code is never ever used :-( } The wrappers: class SpecialDataHelper extends SimpleSwingWorker { public SpecialDataHelper (SpecialData sd) { this.stuff = etc etc etc; } public Void doInBackground() throws Exception { OurCodeThatThrowsACheckedException(this.stuff); return null; } protected void done() { // called only when successful // never reached if there's an error } } The feature of SimpleSwingWorker is that the actual SwingWorker's done()/get() methods are automatically called. This, in theory, rethrows any exceptions that happened in the background. In practice, nothing is ever caught, and I don't even know why. The SimpleSwingWorker class, for reference, and with nothing elided for brevity: import java.util.concurrent.ExecutionException; import javax.swing.SwingWorker; /** * A drop-in replacement for SwingWorker<Void,Void> but will not silently * swallow exceptions during background execution. * * Taken from http://jonathangiles.net/blog/?p=341 with thanks. */ public abstract class SimpleSwingWorker { private final SwingWorker<Void,Void> worker = new SwingWorker<Void,Void>() { @Override protected Void doInBackground() throws Exception { SimpleSwingWorker.this.doInBackground(); return null; } @Override protected void done() { // Exceptions are lost unless get() is called on the // originating thread. We do so here. try { get(); } catch (final InterruptedException ex) { throw new RuntimeException(ex); } catch (final ExecutionException ex) { throw new RuntimeException(ex.getCause()); } SimpleSwingWorker.this.done(); } }; public SimpleSwingWorker() {} protected abstract Void doInBackground() throws Exception; protected abstract void done(); public void execute() { worker.execute(); } }

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