I am wondering that how could we call function in custom flow block in anylogic. Should we need to use some parameters? I used MYAGVWorkstation as Custom flow block as https://anylogic.help/library-reference-guides/process-modeling-library/custom-block.html. Now I want to call function at seizeAGV-SizeTransport. I tried but its giving error.
Looking forward to some help and thanks in advance.
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just started learning and bumped into this callback thing, not sure I fully follows this example below, callback is an argument for function inputName, but how is it being linked to the previous function sayHello? I think I missed the logic flow here>, is it possible there are two callbacks? how to decide which one to refer to then, many thanks.
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I'm wondering if there is a way to invoke another s function from within an s function. I also have some data that I would like to pass from the main s function to the invoked one and would also like to return the value of the invoked s function back to the main s function. Any idea how to approach this? Thanks.
I'm confused when to use
var flow = protractor.promise.controlFlow()
in protractor scripts and also I can see a method called execute method flow.execute().
Can Any one give me some example and elaborate above statement
You shouldn't normally need to use the controlFlow yourself unless you are trying to add some asynchronous code into the middle of other webdriver operations. You would basically have to wrap that asynchronous code inside of a promise and the pass that promise/function into the flow.execute(). Here is a good link with more information about Control Flow in WebdriverJS
https://github.com/SeleniumHQ/selenium/wiki/WebDriverJs#control-flows
I am want to know if there is any way to call a same function from other two functions.
Like, say ..fucntion1 calls the MainFunction and then after function1 has done using the main function, function2 should call the MainFunction.
I have learned that this can be achieved using NSOperation queues ? But that is for asynchronous execution, I do not want that.
Is there any other way to achieve this ?
Any help will be truly appreciated, Thank you for your time. :)
You can use dispatch_sync(). It's part of the GCD API.
Use below method, it may helps you
[self performSelectorInBackground:(SEL) withObject:(id)]
Thank you all for your help ..! I ended up using delegates to solve this issue, I inserted a delegate callback, which gives me a callback after the first function completes using the MainFucntion and after getting the callback i called that MainFucntion using the secondMethod.
Is it a function?
Is it a function being called from the source?
Or, is it a function being returned from the destination?
Or, is it just executing a function at the destination?
Or, is it a value returned from a function passed to the destination?
A callback is the building block of asynchronous processing.
Think of it this way: when you call someone and they don't answer, you leave a message and your phone number. Later on, the person calls you back based on the phone number you left.
A callback works in a similar manner.
You ask an API for a long running operation and you provide a method from within your code to be called with the result of the operation. The API does its work and when the result is ready, it calls your callback method.
From the great Wikipedia:
In computer programming, a callback is
executable code that is passed as an
argument to other code. It allows a
lower-level software layer to call a
subroutine (or function) defined in a
higher-level layer.
Said another way, when you pass a callback to your method, it's as if you are providing additional instructions (e.g., what you should do next). An attempt at making a simple human example follows:
Paint this wall this shade of green (where "paint" is analagous to the method called, while "wall" and "green" are similar to arguments).
When you have finished painting, call me at this number to let me know that you're done and I'll tell you what to do next.
In terms of practical applications, one place where you will sometimes see callbacks is in situations with asynchronous message passing. You might want to register a particular message as an item of interest for class B.
However, without something like a callback, there's no obvious way for class A to know that class B has received the message. With a callback, you can tell class B, here's the message that I want you to listen for and this is the method in class A that I want you to call when you receive it.
Here is a Java example of a callback from a related question.