Java Question getXXX vs getXXX(params)

tchart · Apr 27, 2020

A question regarding Java libraries which Ive never been able to figure out.

If I have this code

B4X:

public String getManufacturer()
{
    return os.getManufacturer();
}

In B4X I see the method as "Manufacturer as String (read only)"

However if I have this code;

B4X:

public String getManufacturer(String param)
{
    return os.getManufacturer();
}

In B4X I see the method as "getManufacturer(String param) as String"

Is there any way to get the second one to show up as a Manufacturer (i.e remove the get when using parameters)?

tchart · Apr 27, 2020

Ok I see this is mentioned here; https://www.b4x.com/android/forum/threads/java-creating-libraries-for-basic4android.6810/#content

Methods that start with 'get' and don't have any parameters will be converted to a property.

So the question is then, why? Cant a method with parameters be treated the same in terms of naming conventions?

barx · Apr 28, 2020

Why would you want to give a parameter? Please explain your case a little better and it may make more sense.
Methods that start with get or set and have no parameters are indeed converted to a property. They are known as getters and setters. It basically acts as though you are accessing a property of a class directly, but gives you a chance to add some middle-man code for things like validation, etc

alwaysbusy · Apr 28, 2020

barx said:
set and have no parameters

Small correction, set does have one parameter

Note that this system is the same as in java. get/set lowercase will become a property, uppercase a normal method starting with Get or Set

barx · Apr 28, 2020

True, Sorry, I've just got out of bed. Eyes still half shut.

Good spot @alwaysbusy

tchart · Apr 28, 2020

barx said:
Why would you want to give a parameter? Please explain your case a little better and it may make more sense.
Methods that start with get or set and have no parameters are indeed converted to a property. They are known as getters and setters. It basically acts as though you are accessing a property of a class directly, but gives you a chance to add some middle-man code for things like validation, etc

That was just an example. The library I am writing has many methods, some take a parameter some don't.

It just inconsistent when I use the library in B4X as some methods show up with getXXX and some don't (because some require a parameter).

So when looking at the methods available the list is all mixed up...

DonManfred · Apr 28, 2020

tchart said:
It just inconsistent when I use the library in B4X as some methods show up with getXXX and some don't (because some require a parameter).

you can write helpermethods for such cases. something like

Java:

public String getAuthor(){
    return obj.getSomethingwithparameters("Author");
}

Java Question getXXX vs getXXX(params)

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Java Question getXXX vs getXXX(params)

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