Questions tagged [method-parameters]
65 questions
42
votes
4 answers
How to get Method Parameter names in Java 8 using reflection?
Java 8 has the ability to acquire method parameter names using Reflection API.
How can I get these method parameter names?
As per my knowledge, class files do not store formal parameter names. How can I get these using reflection?
Prateek
- 12,014
- 12
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- 81
15
votes
6 answers
Are method parameters thread safe in Java?
Class Shared{
public void sharedMethod(Object o){
//does something to Object
}
}
//this is how threads call the shared method
run(){
sharedInstance.sharedMethod(someObject);
}
Now the o is being passed as the…
Narendra Pathai
- 41,187
- 18
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- 120
12
votes
2 answers
Ehcache automatic key generation and @Cacheable spring annotation
Does anybody know how the default key generation for Ehcache works? If I have the following method:
@Cacheable(cacheName = CACHE_KEY) // CACHE_KEY is static final field.
public List list(
int firstRecord, int maxRecords, int…
Ivaylo Slavov
- 8,839
- 12
- 65
- 108
9
votes
3 answers
Is there a way to let arguments be var instead of val?
When debugging command line argument handling in Java I'm used to doing
args = new String[] { "some", "new", "arguments" };
(especially useful if have a filename as argument which you frequently change, but don't want to go through some dialog…
aioobe
- 413,195
- 112
- 811
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8
votes
2 answers
Is mutating object-parameters in a method(in Java) a bad practice?
I have a question about mutating method-paramaters(which are objects) in a method.
I read and heard multiple times that it is a bad practice to mutate a object in a method which was passed in as a paramater. As example:
public void…
MaverinCode
- 469
- 1
- 4
- 15
6
votes
5 answers
How to use PHP function or method arguments in any order?
Lets say I define class with method like this:
class Test {
public function doStuff($a, $b, $c) {
// -- Do stuff --
}
}
Is it possible to use this method but with arguments in different order, like this:
$test = new…
otporan
- 1,345
- 2
- 12
- 29
5
votes
0 answers
How should one handle iOS version-specific UIApplicationDelegate protocol method parameter types?
In iOS 12, the UIApplicationDelegate protocol defines:
- (BOOL) application:(UIApplication *)application continueUserActivity:(NSUserActivity *)userActivity restorationHandler:(nonnull void (^)(NSArray> *…
Alexander Gingell
- 332
- 2
- 17
4
votes
1 answer
Resharper and live templates. Get the list of parameters in a method
I want to create a live template with resharper that allows me to write logging information inserting method name and method parameters, something like this:
I have in my code, a method like this:
public void searchByParams(String param1, String…
Fernando Moyano
- 1,097
- 4
- 15
- 29
3
votes
3 answers
How to Convert Array to Params of Method?
I need to pass params (like: 'param1', 'param2', 'param3') to the method... but I have array of params (like: array('param1', 'param2', 'param3')). How to convert array to params?
function foo(array $params) {
bar(
// Here should be…
daGrevis
- 21,014
- 37
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- 139
3
votes
1 answer
How to pass a reference to a STATIC method as a function parameter in C#?
I need to use a Swallow(Func) method from NLog library.
Important note: I call Swallow from a static method and want to pass a static method.
Its documentation is…
Sold Out
- 1,321
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- 34
3
votes
2 answers
Java: get all method parameters as Object array
Is it possible to do this:
void foo(Bar b, FooBar fb){
Object[] args=getArgs() //Contains the parameters b & fb
}
And if yes, how?
(I dont know the name and the number of parameters)
flimmerkiste
- 261
- 1
- 4
- 7
3
votes
2 answers
How to conditionally pass parameters into a func array
I have method that expects the following parameters:
public IQueryable GetAllIncluding(params Expression>[] includeProperties)
{
foreach (var includeProperty in includeProperties)
{
…
RichC
- 7,829
- 21
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- 149
3
votes
1 answer
python - create a dynamic list of parameter for a method
I want to create a XLSX file in python. For this, I use xlsxwriter.
In my XLSX I want to highlight some part of text with the write_rich_string method.
But, my string is not a fixed value. The part I want to highlight can be randomly placed into it.…
gatchan
- 75
- 2
- 7
3
votes
1 answer
Should I validate method parameters in Ruby?
I have Java background and in Java when programmer call method with wrong parameters, exception will be thrown. How Ruby programmers treat wrong method arguments?
Two opposite examples from core classes:
irb(main):009:0> "" * (-2)
ArgumentError:…
guest
- 1,696
- 4
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- 31
2
votes
1 answer
How to get from a Method to the Annotations of its Parameters during Annotation-processing?
During annotation processing I am currently processing the annotation of a method:
@Override
public boolean process(Set elements, RoundEnvironment env) {
Messager msg = processingEnv.getMessager();
for (TypeElement te :…
towi
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