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What is Rack middleware?
...of rack is a simple convention. Every rack compliant webserver will always call a call method on an object you give him and serve the result of that method. Rack specifies exactly how this call method has to look like, and what it has to return. That's rack.
Let's give it a simple try. I'll use WEB...
Using Spring MVC Test to unit test multipart POST request
...rtHttpServletRequestBuilder. Then chain a bunch of file(MockMultipartFile) calls.
Here's a working example. Given a @Controller
@Controller
public class NewController {
@RequestMapping(value = "/upload", method = RequestMethod.POST)
@ResponseBody
public String saveAuto(
@R...
When should we call System.exit in Java
...n't) be aware of each other. Then, if someone wants to quit, he can simply call System.exit(), and the shutdown hooks (if properly set up) take care of doing all necessary shutdown ceremonies such as closing files, releasing resources etc.
"This method never returns normally." means just that the m...
How to call a PHP function on the click of a button
I have created a page called functioncalling.php that contains two buttons, Submit and Insert .
12 Answers
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Find XOR of all numbers in a given range
You are given a large range [a,b] where 'a' and 'b' can be typically between 1 and 4,000,000,000 inclusive. You have to find out the XOR of all the numbers in the given range.
...
Understanding how recursive functions work
...the confusion is stemming from thinking of it as "the same function" being called many times. If you think of it as "many copies of the same function being called", then it may be clearer:
Only one copy of the function ever returns 0, and it's not the first one (it's the last one). So the result of...
PHP function overloading
... you might be able to achieve what you want, would be to make use of the __call magic method:
class MyClass {
public function __call($name, $args) {
switch ($name) {
case 'funcOne':
switch (count($args)) {
case 1:
...
Mockito: InvalidUseOfMatchersException
.... and in fact there is : eq
when(recommendedAccessor.searchRecommendedHolidaysProduct(eq(metas), any(List.class), any(HotelsBoardBasisType.class), any(Config.class)))
.thenReturn(recommendedResults);
In this example 'metas' is an existing list of values
...
Is it possible to allow didSet to be called during initialization in Swift?
... allow self to fully initialize without
someProperty being set. When you call
setSomeProperty(someProperty) you're calling an equivalent of
self.setSomeProperty(someProperty). Normally you wouldn't be able to
do this because self hasn't been fully initialized. Since
someProperty doesn't re...
What's the difference between an exclusive lock and a shared lock?
...don't know why you chose to pick out a "re-entrant" read-write lock specifically, but re-entrancy means that the owner of a re-entrant lock can 'lock()' it again and all subsequent lock() calls after the first one will return immediately and successfully. i.e. you can successfully lock something you...