How can we implement a visitor patter using Ballerina to extract information from an OpenAPI spec because Ballerina does not support method overloading?
#Visitor pattern using Ballerina
jovial sky
grave wigeon
It is possible. Check this example: https://gist.github.com/hasithaa/47861aa8f2c8acf4f0e94ef31adf9bb8.
One downside to this approach is that everything must be modeled as objects. This might work or be suitable for your needs. However, without evaluating your requirements and model, I cannot definitively say that this is the best pattern to solve your problem.
jovial sky
thank you @grave wigeon
jovial sky
@grave wigeon actually I want to visit a set of records. Not objects.
in such cases, are there any best practices to implement visitors?
grave wigeon
We can change it to something like this if you have multiple visitors. https://gist.github.com/hasithaa/5a50ad63dfc2624647a8ceaaaa5dfdcd/e904c5809de71342dee0c54a5be6b1036b064331
If it is just one, we can do simply. https://gist.github.com/hasithaa/5a50ad63dfc2624647a8ceaaaa5dfdcd
