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What is a good way of creating non-blocking methods in Scala? One way I can think of is to create a thread/actor and the method just send a message to the thread and returns. Is there a better way of creating a non-blocking method?
Started by cory on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
A => Future[B] = (a => Futures.future(f(a))) // normally blocks when called def sleepFor(seconds = asyncSleepFor(5) // now it does NOT block println("waiting...") // prints "waiting..." rightaway.
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Hi, this is a general question regarding method block structures. Does anyone have an opinion on what is a better way to design methods given the 2 alternatives below?
private void Method1() { if (!A) { return; } if (!B) { return; } if (!C) { return; ...
Started by Grant on
, 12 posts
by 12 people.
Answer Snippets (Read the full thread at stackoverflow):
Also, you can't return 'null' in a void method :)
Personal method is debatable - personal preference....
And I really try to avoid lots of nested 'if' statements .
In my opinion, it's more clear.
I prefer method 1, the "early exit" approach.
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As we have access modifiers for methods and constructors, do we have it for static blocks? if yes what is the significance?
Answer Snippets (Read the full thread at stackoverflow):
Access modifiers (loosely speaking) tell you what you can ... .
And you can't call the static blocks either, so it wouldn't make much sense.
I'm assuming you want to write any.
I don't think you can have an access modifier for static blocks.
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From the Sun docs
Normally, you would put code to initialize an instance variable in a constructor.
There are two alternatives to using a constructor to initialize instance variables: initialize blocks and final methods.
I could understand the use of ...
Started by gameover on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
The method is final because calling non-final ....
This is especially useful if subclasses might want to reuse the initialization method.
The advantage is already described in the very same Sun tutorial you linked to:
A final method.
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If I create a dll called xaisoft.dll like this:
Using System; Using System.Reflection; [assembly:AssemblyVersion("1.0.0.0")] public class XaiSoft { public string PrintName() { return "XaiSoft"; } }
and then compile it with
csc /t:library lib.cs
and then...
Started by Xaisoft on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
The criteria listed there are still....
Methods that contain exception-handling blocks are not inlined, thoughAccording to Eric Gunnerson , the method has to be small enough to fit into 32 bytes of IL.
In this case, switch or while.
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Is the recent movement towards anonymous methods/functions by mainstream languages like C++ and C# something important, or a weird feature that violates OO principles?
Are recent libraries like the most recent version of Intel's Thread Building Blocks...
Started by RD1 on
, 9 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
Java's.
Exactly how that is implemented is another matter.
So just like a full .Net 1.1 representation of a Method Delegate case of a single-method callback object.
They are a method, not a Type...
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I have using blocks in each method of my repository. If I want to cross reference methods, it seems it would be against best practices to initialize another Datacontext What am i doing wrong? If I declare a Datacontext in the class instead of using blocks...
Started by zsharp on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
It ensures these methods will still create....
It compiles to a try/finally block with the Dispose() call in the finally section.
The using statement is syntactic sugar.
This in the Dispose method of your repository, if you've got one.
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Here's a question to expose my lack of experience: I have a method DoSomething() which throws an exception if it doesn't manage to do it cleanly. If it fails, I try the less accurate method DoSomethingApproximately() several times in the hope that it ...
Started by Joel in Gö on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
If the ways those methods fail do throw exceptions, catch them all....
In your case I'd bunch the three methods together into a single method and have it return whichReturn an error code instead of throwing an exception.
Application.
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C# 3.0 in a nutshell says asynchronous methods and asynchronous delegates looks similar but the behavior is very different.
Here is what the book says about both.
Asynchronous methods Rarely or never blocks any thread. Begin method may not immediately...
Started by Appu on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Also; more recently (for example, the async ....
Include this pattern:
a synchronous call ( Invoke ) that can block an async call ( BeginInvoke ) that shouldn't really block unless the thread-pool is saturated but it isn't the only pattern.
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There is one aspect of TDD which I never fully understood.
Suppose somebody asked you to implement a simple Stack object. If you've done your design properly, you will come to a very minimal and clean API. Suppose: push() , pop() and isEmpty() . Anything...
Started by Yuval A on
, 11 posts
by 11 people.
Answer Snippets (Read the full thread at stackoverflow):
If a method misbehaves, acceptance tests tell if the co-operation of multiple methods'/classes' misbehaveSometimes I make methods which would otherwise be private into package level (Java) or internal (.NET) methods, usually....
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