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RytomRytom 

Functions with varying number of parameters

Is there a way to create a function that can take in a varying number of parameters? 

 

I know in java to do such a thing you can have a function like this: 

 

public double average(double...values) { 

 ....function body....

}

 

Is there a simliar method to do this in APEX? 

 

Thanks in advance! 

harry.freeharry.free
List<String>, List<Object>?
KunalSharmaKunalSharma

What do you mean by varying number of parameter? Please see below if it solves your issue:

 

You can create a method with all the parameters that you have to pass like:

 

public void genMethod(Var a, Var b, Var c, Var d)

{

   //your code here

}

 

Now when you are calling from different places you can pass the parameters that are required and all the other parameters as NULL. 

 

className.genMethod(null, b, null, null);

 

OR

 

className.genMethod(a, null, null, d);

 

Thanks,

Kunal
KrishHariKrishHari

Apex doesn't support variable number of parameters. If your requirement is to call the method with variable number of parameters, try using a map (List's will take only same type of object for all it's values - maps can take different type of objects in a same variable). For e.g.

 

public void myMethod(Map<String, Object> mapParams) {

// string is the key and the object can be of any object including sObjects. You need to type case in order to work.

}

 

Regards,

HK.
Andries.NeyensAndries.Neyens

Create a parameter class and use that as a parameter:

 

public class AvarageParameter {

 

   //all the varying number of params

}

 

 

public boolean average( AverageParameter param) {

   .......

}

 

The benefit of doing this with a parameter class is that you can change the parameters in the class, causing a smaller impact on exising code than changing the function parameters.

 

 

Andries