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Why does Hibernate require no argument constructor?
...ost use cases, providing a no-arg constructor is not a problem.
There are hacks based on serialization that can work around not having a no-arg constructor, since serialization uses jvm magic to create objects without invoking the constructor. But this is not available across all VMs. For example, ...
Download a file by jQuery.Ajax
...length...
With Struts2 (unless you are using the Action as a Servlet, an hack for direct streaming, for example), you don't need to directly write anything to the response; simply using the Stream result type and configuring it in struts.xml will work: EXAMPLE
<result name="success" type="stre...
Variable is accessed within inner class. Needs to be declared final
...claim credit for this one. It was IntelliJ's recommendation! Feels a bit hacky. But doesn't seem as bad as a global variable so I thought it worth mentioning here. It's just one solution to the problem. Not necessarily the best one.
final int[] tapCount = {0};
addSiteButton.setOnClickListener(...
Anonymous recursive PHP functions
...(Y f) x.
Since PHP doesn't automatically curry functions, it's a bit of a hack to make fix work, but I think it's interesting.
function fix( $func )
{
return function() use ( $func )
{
$args = func_get_args();
array_unshift( $args, fix($func) );
return call_user_fun...
Why is Lisp used for AI? [closed]
...Lisp. people.csail.mit.edu/phw/Books/LISPBACK.HTML
– Hack-R
Jan 15 '16 at 14:40
...
Finding the number of days between two dates
...cross a DST boundary will yield the wrong answer.
So even if you use the "hack" of forcing all date timestamps to a fixed hour, say midnight (this is also done implicitly by various languages and frameworks when you only specify day-month-year and not also hour-minute-second; same happpens with DAT...
Bash set +x without it being printed
...
I hacked up a solution to this just recently when I became annoyed with it:
shopt -s expand_aliases
_xtrace() {
case $1 in
on) set -x ;;
off) set +x ;;
esac
}
alias xtrace='{ _xtrace $(cat); } 2>/dev...
Reset C int array to zero : the fastest way?
...eset to zeros" an array of objects of any type without having to resort to hacks like memset. Basically, this is a C analog of C++ function template, except that you have to specify the type argument explicitly.
On top of that you can build a "template" for non-decayed arrays
#define ARRAY_SIZE(a)...
What is the JavaScript >>> operator and how do you use it?
...never be < 0. Nevertheless, I would argue that this example is a nasty hack, for two reasons:
The behavior of <<< when using negative numbers, a side-effect probably not intended (or likely to occur) in the example above.
The intention of the code is not obvious, as the existence of...
jQuery event handlers always execute in order they were bound - any way around this? [duplicate]
... Dunstkreis mentioned .data('events') was removed.
But you can use another hack (it is not recommended to use undocumented possibilities)
$._data($(this).get(0), 'events') instead and solution provided by anurag will look like:
$.fn.bindFirst = function(name, fn) {
this.bind(name, fn);
var ...