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Spring Boot Rest Controller how to return different HTTP status codes?
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There are several options you can use. Quite good way is to use exceptions and class for handling called @ControllerAdvice:
@ControllerAdvice
class GlobalControllerExceptionHandler {
@ResponseStatus(HttpStatus.CONFLICT) // 409
@ExceptionHandler(...
What is an SSTable?
In BigTable/GFS and Cassandra terminology, what is the definition of a SSTable?
4 Answers
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Python serialization - Why pickle?
...something.) You first need to convert it into a character stream, then you can send it over a socket connection.
Also, there is no "compression" to speak of here...it's just a way to convert from one representation (in RAM) to another (in "text").
About.com has a nice introduction of pickling here...
What does Provider in JAX-RS mean?
...t ‘@Provider’ annotation does? I have been reading documentation but I cant get it.
If there are resource classes that service the incoming requests, what do Providers do? How are they different from singleton resource classes when I create a persistent resource class (the one that is not per-...
How can I sort generic list DESC and ASC?
How can I sort generic list DESC and ASC? With LINQ and without LINQ? I'm using VS2008.
5 Answers
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How to use Active Support core extensions
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Since using Rails should handle this automatically I'm going to assume you're trying to add Active Support to a non-Rails script.
Read "How to Load Core Extensions".
Active Support's methods got broken into smaller groups in Rails 3, so we don't end up loading a lot ...
What is the equivalent of “android:fontFamily=”sans-serif-light" in Java code?
...e, then the "default" font
will be chosen. The resulting typeface object can be queried
(getStyle()) to discover what its "real" style characteristics are.
Note that excessively using Typeface.create() is bad for your memory, as stated in this comment. The suggested Hashtable is a good solutio...
How to use RestSharp with async/await
...their names, for example the Task<T> overload for ExecuteAsyncGet is called ExecuteGetTaskAsync<T>. For each of the new Task<T> overloads there is one method that does not require a CancellationToken to be specified and there is one that does.
So now on to an actual example on ho...
What is a Lambda?
...sn't have (or, at least, need) its own name.
A closure is a function that can access variables that were in its lexical scope when it was declared, even after they have fallen out of scope. Anonymous functions do not necessarily have to be closures, but they are in most languages and become rather...
Cast an instance of a class to a @protocol in Objective-C
... [vc protocolMethod];
}
The UIViewController <MyProtocol> * type-cast translates to "vc is a UIViewController object that conforms to MyProtocol", whereas using id <MyProtocol> translates to "vc is an object of an unknown class that conforms to MyProtocol".
This way the compiler wil...