Is that possible? I've seen no method that would generate a plain old C vector or array. I have just NSNumber objects in my array which I need as C vector or array.
For Jetty, Tomcat, or any other servlet container of your choice, what's the average footprint (memory, and any other notable resources) of a basic servlet? This includes any other basic objects that you almost always need per servlet, such as a view resolver.
I'm not looking for a quantitative number in particular, but any indicative answer that could give an idea of how "heavy" or "lightweight" a servlet is.
Thanks in advance
It seems that JMenuItems don't automatically resize any image icon that's assigned to them, and from what I can tell, there isn't a property that makes them automatically do that, either.
Is anyone aware of a way that I can programatically resize the Icon for a JMenuItem? It seems like the Icon object is lacking functionality as it is, unless there's some other function that can actually deal with Icon objects.
Hey.
My code crashes at this function (at the stringByAppendingFormat: with error objc_msgSend() selector name: stringByAppendingFormat).
This is that line:
// imagesPath = ...iPhone Simulator/4.0/Applications/NUMBERS/Documents/images
UIImage *image = [[UIImage alloc] initWithContentsOfFile:[imagesPath stringByAppendingFormat:@"/%d.png", [[self.postsArrayID objectAtIndex:row] intValue]]];
Could it have something to do with the retaining of objects?
Thanks :)
When log shows a lot of Garbage Collection hits, what code change shall we need?
Do we need to free some objects?
Will we speed up the code with object reusal?
My multithreaded Java program crashes because it runs out of heap space and I don't think it should. Assuming the culprit is unintentional object retention, what's a good free tool to investigate what objects are being unintentionally retained?
My IDE is Eclipse.
Hello,
I have my Parent object, which contains an ICollection of Children objects. The Children are lazy loaded and I do not need them in the context of my scenario. However, when I try to add a new child object to my Children collection, it kicks off the lazy load and loads all 7000 child records.
I assume I am making a newbie mistake. Anybody out there know how I can fix this?
Thanks!
hi,
Can I use IsInRole with customized objects??
Like I want to do some operations only for Employee while other only for Managers.
How can I achieve this?
The Django documentation gives en example like so:
b = Blog.objects.get(id=1)
b.entry_set.all()
Which from what I understand results in 2 queries. What if I wanted to get the blog, the blog entries and all the comments associated with that entry in a number of queries that does not depend on the number of entries? Or do I have to drop down to SQL to do that?
Hi,
is there a way - much like the way i can see the result of preprocessing when using 'gcc -E' - to see what my objects look like once the compiler compiled them into object files?
I am not too good in reading assembler, so an advice to get the results as text would be nice .. or at least a little 'howto read the constructor intructions' or 'howto find the constructor' ...
I am talking about gcc/g++, but a solution including msvc would be fine.
Thanks!
Hey,
I want to use a method of an object.
Like $myObject->helloWorld().
However there are a couple of methods so I loop through an array of method names and call the method like this:
my $methodName ="helloWorld";
$myObject->$methodNames;
This works quite nice but some objects don't have all methods.
How can I tell whether $myObject has a method called helloWorld or not?
I wonder if anyone could point me in the direction where I can read about the nuts and bolts of C#. What I'm interested in learning are method call costs, what it costs to create objects and such.
My aim of learning this is to get a better understanding of how increase the performance of an application and get a better understanding of how the C# language works.
The reference should preferable be a book, a book that I can read cover to cover.
Lets say we have a generic list of Class1, typically having ~100 objects for a given session.
I would like to see if the list has a particular object. ASP.NET 2.0 allows me to do this:
Dim objResult as Class1 = objList.Find(objSearch)
How does this approach rate when compared to a traditional For loop, looking at a performance perspective?
How would this vary with increase or decrease in length of the list?
I have gone through Head First Java and some other sites but I couldn't find complete stuff related to Threads and additional concurrency packages at one place.
Please suggest a book/website which covers complete Threads with more details like
Synchronize and locking of objects
More detailed about volatile
Visibility issues in Threads
java.util.concurrent package
java.util.concurrent.atomic package
Have I any chance to serialize meta (any format, so I can store it in DB)?
var obj1 = {};
var obj2 = {};
obj1.link = obj2;
obj2.link = obj1;
var meta = [obj1, obj2];
As I understand the problem is that JSON serialize object`s links to objects.
Is there a way to access the super object when extending objects using $.extend?
I would like to extend an object, override a method, but call the overridden superclass method in the subclass method.
Hi
I have a C++ program running under linux. Is it possible to track its memory usage from the code? I am allocating new objects and running out of memory, so I want to keep track of how quickly I am using memory.
Thanks
I know I learnt this on the SCJP syllabus, but it escapes me.
What's the term for a set of objects that refer to each other but are no longer accessible from your program (and are thus eligible for garbage collection)?
This is something I encounter frequently, but I don't know the elegant way of doing. I have a collection of Foo objects. Foo has a method bar() that may return null or a Bar object. I want to scan the collection, calling each object's bar() method and stop on the first one returning an actual reference and return that reference from the scan.
Obviously:
foos.find(_.bar != null).bar
does the trick, but calls #bar twice.
I have a STL container full of billions of the following objects
pair
I need some function of the following form
/*returns items sorted biggest first */
bool sortPredicate (SomeClass *two, SomeClass *one)
{
return ???;
}
Is there some trick I can use to very quickly compare pairs of pointers?
I have two pieces of text. I would like to make a word-based diff between them (like whe unix utility wdiff does) but with more information in the output (I mean, the character's posizion where the added/delited word starts).
I need to do this in Java, so a simple output of the differences (like wdiff) doesn't suite for me: I would like to manipulate objects representing differences.
Hi,
I have a NSMutableArray with a few NSString objects in , how can i test if
it contains a particular string literal
i tried [array containsObject:@"teststring"] but it doesn't work.
Thanks
In my application I need to keep track of a list of objects that are being displayed. Right now I have an NSArray with all of the NSManagedObjects. Would I be better off to store the ObjectIDs and then only request the object when I need it?
I am mainly concerned about memory at this point.
Hello,
I'm trying to get the dojo tree widget working. It works with a small json object, but when i try it with a large json object it goes wrong. There is no error, just the root node. Is this a normal behavior? Is there a maximum of objects you can load? My json object contains around 800 entries.
Thanks,
Ewout